A friend of mine had an electric air compressor about that same size maybe a little bigger. The electric motor burned out, I took off the motor and compressor because the compressor was slow to build air. I left everything else, plumbed it so he could hook it to his shop air compressor fill it with air and have a portable air tank on wheels. Gave new life to something that would have either been set off in a corner to collect dust or taken to a scrap yard.
I think that has alot of 10 hour days,6 days a week without any oil change hours on it 😮 Wonder if taking a little emory cloth to the crank and new rod bearing would tighten up the bearings to the crank and settle the hammering sound down
Another great mustie 1 video! Keep them coming. Just one small note, 90% of the time the crankshaft ( on Honda GX series are forged steel) are undamaged or worn I very confident that a new connecting rod will make it perfect again. It can be replaced without removing the head, just pull the piston back just far enough to expose the wrist-pin. You can remove the clip and pull out the pin with transmission snap-ring pliers. I have done it more times than I can remember.
The unloader valve has a spring in it that pushes down when its in the run position. So without it your basically in the start position permanently and that’s why it wont build more pressure.
@@gs1100ed I know he thinks that that is cutesie and all that nonsense, but in fact it costs him time which costs him running things he claims he'll sell instead of investing at least part of his financial empire. I mean, maybe do half of it, and the worst you are is half wrong.
mustie, old buddy, your going to have to get a young helper to keep your old back from giving out on you. All us followers need the Sunday shot in the arm from all your great videos. Maybe you could compile a Best of Mustie Series. Take care, Bill
I'd like a whole vid about the IMMENSE parts stash 'ol Mustie has! How on earth did you acquire so much stuff? Is it a generational stash from your dad? How the hell old ARE you?
That engine on your compressor is a standard, off the shelf model. The air control for the throttle is an add on. They are typically a $25 item at some hardware stores. They operate like the pressure switch on an electric compressor motor. The difference is that the engine doesn't cycle on and off, but causes the engine to surge for compressing the air, then when the call for air is fulfilled, it goes back to idle. The Amish in my area have a system for a line shaft driven compressor off of a stationary engine where there's an air cylinder on the base of the compressor, and a spring so that whenever there's a call for air, the cylinder slides the base, tensioning the belt and bringing it to pressure. When the call for pressure is fulfilled, the compressor springs disengage the belt until there's a call for pressure again.
Well now I need to see if those control thingies exist over here, because my petrol compressor (when I get it running) just has a blow off valve, the engine runs full speed all the time. Which annoys me.
@@exasperatedThe unloader control valve in the side of the tank is only part of the system. Mustie is missing the manual control portion of that valve. If the compressor isn't set up for it you won't have the unloader valves to shut off the intake air in the cylinder head(s). You also need the air throttle kicker to push the governor up off idle.
I am always amazed at the stuff that you get for free period I live in a relatively affluent area and none of these Snow blowers or lawnmowers or compressor's would be offered with anything, but a 25 or a $50 price on them, no matter what condition they were in.
Same here, wouldn’t give you drink of water much less anything of value but it is mostly poor people around me. The poor people would help a person more than the ones who have money
@@Fatbodypylethat is not tru. On maui I found a nice pressure wash that started and ran .. even had gas in it..also q big generator that ran no juice but it ran..also in new Mexico someone sat a kawasaki generator with zero wrong with it by the curb and a sign saying free on it .. yes it's tru ..
Just depends where you are. I used to go around with a trailer once a week and come home within a few hours with a full load of "trashed" stuff. I was living in Southern California too.
The unloader valve also sets the pressure the compressor can build in the tank, and is adjustable. Air pressure from the unloader valve also keeps the compressor pistons from building any further air pressure when tripped.
I recently fixed a similar compressor with a smaller 5.5hp Honda. What happened to it was it developed an air leak so it would never reach 120psi and the engine overheated because it was 90 degrees outside that day. The biggest problem with these small Hondas is that the connecting rod is just pure aluminium with no bearing material so the rod seizes when the oil gets to thin from overheating! Bought a new rod for 20$ because the crank was ok after polishing, so its was a cheap fix.
That’s what I was thinking a cheap fix for the engine. The piston is likely perfect, with great compression. Adding a few missing parts and this compressor can live again.
The no bearing material is unfortunately all too common on small engines. As a small engine tech working at a shop I find it rather sad how many people I feel obligated to advise that they replace equipment, especially the cheaper stuff, rather than have it repaired as their cost will be lower in doing so.
@@davidwildridge8080 Mustie very very rarely purchses anything except rebuild kits for the 2 stroke motors he fixes on weedwhackers, at which he is very talented.
@@silasmarner7586 he is great at troubleshooting. I understand on anything used the name of the game is to keep expenses to a minimum whether you are selling or keeping.
I can't believe the good stuff you find "out by the road". I used to pick up lawn mowers and weed wackers but stuff like this is MONEY. You haul some free stuff that is really good salvage stuff.
It is my personal philosophy that any machine that uses a Honda GX is worth attempting to fix. That GX is hard to beat and that whole setup is pretty decent quality wise. Just rode hard and put away wet, with minimal care and maintenance. But thats why its got a GX so it will just work for thousands of hours reliably.
That second air intake port is loose so you can't detect a vacuum when you block it with your finger. It was most likely sucking in the air at the loose connection. That's my guess as to why you can't feel anything on that side.
I have a very similar emglo compressor that has a k series kohler on it. 4 cyl 2 stage. make sure your pop off and unloader valves are working and not sticky that compressor if the pop off sticks will pressurize well over burst pressure on most tanks. don't want the big kaboom to happen to ya. also mine has a clutch on it so when the engine throttles down it doesn't turn the compressor. not sure if someone might have eliminated it on yours. and you are missing the whole top of the pop off/unloader valve there. the little diagram is showing you the position of the valve handle you are missing. you adjust the valve for your shut off and kick on pressures. when the valve pops off it shoves the throttle to idle and fires the unloader valves that stop the compressor from making pressure so it is not fighting against tank pressure when it trips over to run again when pressure drops. At idle it just freewheels and makes no pressure but as i said your missing the guts of your pop off valve
It would have been a lot easier to pull it up, instead of trying to push it. And he has Crusty the truck, that has the fold down sides, about as low as any mini van.
I have this homemade arch thing mounted across the truck bed and an ATV winch that pulls the heavy thing (including little car motors) up and then the cable has a cable clamp that causes the cable to pull the arch into the vehicle and then I reverse the winch to lower the load down onto a tire in the truck bed... getting stuff down a ramp is easy.
I really would like to see more of this. Maybe dissect the engine and show us all what really failed and then get this back to operating like normal. That would be great to see! 😊
Amazing what you find on the side of the road there. I guess folks here in Oklahoma know how to fix things as I’ve never seen anything like what you find!
I got a "new" lawnmower once. Gas in tank looked like orange juice. Been stored for years. But it was new when put away. And yes, was in a affluent neighborhood.
Does not happen in the UK. If it does it is pretty much always fly tipping which is illegal. Also may be a kick back via health and safety law; more's the pity for us machine types.
Hey man great video, check the cost of a new rod they are not that dear, had to replace one in my honda ride on not that long ago. Also as others said unloader valve parts missing and pull the compressor valves and clean the carbon from them, takes very little to stop them from working correctly. Handy unit for the lake or picking up vehicles with flat tyres
You have a talent for finding fixable machines! In my neighborhood, that compressor would be listed as "mint condition" and the seller would be quick to let me know that they need to get at least a few thousand for it - and that it's worth a lot more than that!
Sunday night in AUS, thank goodness for Mustie, nice work. I wondered if someone was trying to run that engine on 2 stroke mix by mistake.? So much goo in the carby. The compressor will take an air compressor oil, probably a 68 or 46, Castrol’s oil would be AIRCOL PD (for piston type) 46 , 68 etc etc
not that 2 stroke would really hurt it. smoke like mutha, carb get gummy but thats about it. we've had dingbat summer helpers run 50:1 2 stroke thru our generators , Hustler zero turns. a can of seafoam later, youd never know
There's a bunch of pneumatic controls on that, no electric. There's an unloader valve to help startup, a pneumatic solenoid to rev engine when tank pressure drops, and obviously a regulator for supply, and a pop off valve to keep the tank from blowing up. I'd make damn sure everything is working right before running for very long. These are very serviceable, easy to keep them running forever.
How do you find all this killer stuff there's never anything remotely close to anything worth a damn on the side of the road ever where I live in Washington State
Darren, a friend's employees were trying to get their Honda powered pressure washer running, but were unable to. I told them to check the oil level. When they checked it, it was low. After filling it, the were able to get it running. My point is, low oil allerts are made to prevent the engine from starting on low oil, but might not be to shut it down when it leaks out or burns oil. This might be the case on this engine. As for the air leaking from the tank, it seems to me that there is an over pressure device (OPD) that's missing from that check valve.
Honda engines use a internal float switch to detect the oil level. The low oil shutoff works continuously, not just when starting. There are two parts of the system, an oil level sensor inside the engine and a latch module with black and yellow wires screwed to the side of the engine. The sensor is a simple float switch. The yellow wire coming out of the crankcase float is connected to a guided bobber with a pointed contact at the bottom that taps against the metal case as the oil gets low. You might think that yellow wire could directly short out the magneto to shut off the spark, but the magneto outputs a few amps of current and the float switch contact isn't especially good when it's barely bouncing on the case. So there is a "latch" module. That small metal box actually has three contacts, with the case being the third. When the circuit detects a little current flowing through the yellow wire, it triggers the SCR to conduct the bulk of the magneto current for a few seconds through the metal case.
Your missing a 125PSI pop off valve with a relief knob. You would stand it straight up to start the engine and then lay it on its side to run and buildup pressure
I would remove the spark plug and use drill to oil up the engine really good before even trying to start it Do the same thing on all engines i over haul also
I love stuff found on the side of the road, always interesting how people either give up trying to fix something, or they don't even try to fix it, because they don't know how. Mustie1 usually can fix anything, that's why i like my sunday morning's watching what comes into the operating table. G-d bless y'all.
Harbor Freight has the 8hp knock off of the Honda engine for Inside Track price of $270. Seems like the only other thing it needs is the unloader valve and spring and a drain valve? Cleaned up and running with a that new engine it may be worth a good bit more than the approximately $300 you'd put into it?
watching Mustie talking about his rain while it's raining here in Clermont FL is sooo therapeutic, I have decided we need more Sundays in the week so we can have more Mustie"s videos.
What a find, I wish people would leave things like that in the UK. America does seem to have a more hands on approach and more "gas" powered tools. Great vid as always. Thanks Mustie. From Somerset UK.
Thank you for another great video. The unloader/pilot valve (where you were spraying lube on the check ball) is missing all of its guts. Part of this is the toggle that is pictured on the label to the right. This makes it unable to unload the compressor heads. Your compressor is a two head, four cylinder, single stage compressor (maximum 100 to 125PSI rating.) Each head compresses air separately from the other. Each head has its own discharge line, then both lines tie into the common manifold below the compressor. There is a check valve below this (in the tank) that allowed you to back feed the tank through the outlet pressure regulator. The reason you could not pressure the tank past 30PSI, with the compressor, is that one of the inlet valves in the other head is either stuck open by debris or a valve disc could be broken. This lets the air from the working head to escape thru the other head. I learn more from you about small engines every week. Thanks!
I have a Dewalt Wheelbarrow compressor similar to this one, but its the dual tank model. It's all based on pneumatic controls, and the port that is leaking controls the engine speed, just like you thought. The diagram is that missing piece, you set it to start so you're able to pull start it without it reving up on its own. It's also missing the belt cover. Seems like this unit became a parts machine.
my dad works as an inspector a place where these compressors are made. The tanks are built on the tolerance of the tolerance to save on costs. The top end of the compressors are basically designed to be mechanically worn out before the tank rusts and becomes dangerous. Unfortunately these things are throw away compressors.
I just found myself giggling uncontrollably at the sounds the compressor was making around 29:33 onwards, totally nothing to do with it sounding like someone farting into their coffee cup I'm sure... :P
THAT PART NEXT TO GAUGE HAS 4 PURPOSES. HIGH PRESSURE POP OFF, (WHICH IS MISSING), CHECK VALVE (WHICH IS LEAKING). PRESSURE CUT IN, CUTOUT ADJUSTMENT. AND THROTTLE KICKDOWN PORT. MY GUESS SLIDER ON COMPRESSOR HEAD IS EITHER UNLOADER, OR PART OF PRESSURE ADJUSTMENT CUT IN, OR OUT, MAYBE BOTH. PS: ON MY GENIE PRESSURE / UNLOADER VALVE, IT CAME WITH 3 DIFFERENT COLORED SPRINGS FOR ADJUSTING PRESSURE TOO. DIFFERENT SPRING RATES FOR EACH COLOR.
G'day, Mustie! Nice job! Enjoyed the video! By the way... You have a DeWalt "Model: D55275" Gas Powered Air Compressor, with a Honda Engine 8 HP, 18.3 CFM @ 90 PSI, Max PSI 150 "Auto Idle", and Low Oil Shut Down. One of the components you are missing... As you mentioned, Causing the unloader valve to open and vent the excess air from the compressor to the atmosphere. As the compressed air is used and the pressure drops to the load setting the pilot closes and depressurizes the unloader valve. The unloader valve then closes and the pressure begins to build again and repeats the cycle. If you are interested, they're made by 'Conrader' of Erie, PA. Piloted Unloader valves, the Unload Set Pressure Range: 40 to 250 PSI (Model: BG-Series or RCB-M). Enjoy! Cheers! ❤✌🏻🛠😊 P.S. I hope you'll consider, re-powering (this DeWalt "Model: D55275" Gas Powered Air Compressor). 👍🏼
Go online for a trouble shooting plan or better, a new unit diagram. loose parts cause air intake and loss of control pressure. love seeing your diagnogistic procedure. Add a wench or swing arm wench to your truck.
just a thought . make a compressor into a engine . overhead valve external cam pully to run off crank . i would strip it down just to the tank and make a portable storage air tank to air up tires on things you find to bring home . i think a engine with that kind of head facing back .the oil draining out while tipped up would be a bad design if you pick up and roll it the oil would go to the head . so a old style engine straight up and down would be better so it you move it while it is running most of the oil would stay in the bottom . i think it was moved to much or fell over while running
I can say for certain that no one here in Germany would throw out a machine like that, or let it get in that condition. This is the result of taking abundance for granted. Hope you get it all sorted out.
Absolutely and the same here in Australia. Americans complain about how much things cost but most have no idea just how cheaply they can buy things. I regularly compare prices and generally prices in Australia are about double what you pay in the US.
I was wondering this. Is it too much effort and cost to rebuild the bottom end to eliminate that knock? Feels well worth it for an 8HP honda compressor.
Mustie1 the only guy I know that defies gravity. Most people would have pulled the compressor up the ramp. The notch marks showed manufacturing date 2005 (5) and January (A: A to M is 12 letters, so 12 months) Now to watch the rest, as I bought a compressor at an auction so might learn something. 👍🏼 Thank you Darren
$2500 for a new 1 same as that with the Honda engine here in ontario. That compressor is not all that old. Those Honda engines lost forever. My compressor's 25 years old had to replace the pump, but the engine still runs strong..
Having had an inguinal hernia repaired via open surgery three weeks back... I completely agree! I'm banned from heavy lifting for 8 weeks. I'm still in a lot of pain and healing as I type this!
This guy make sure that nobody else gets anything goes out every damn day and grab everything along the road that’s worth anything to keep anybody else from having it!
Strict speaking, the compressor should be filled with 'compressor oil' however, our old Ingersoll Rand has been running with a 20 weight diesel engine oil for at least the last twenty five years. The pipes to the cylinder heads is to oil the valves and upper cylinders - it's a 'total loss' lubricating system, but the amount of oil that gets to the heads is miniscule, but, you do need to maintain the oil level in the casing. It should be checked at least once a week, and oil added when necessary. I can't speak for everyone, but I'd love to see that engine dismantled and see what went wrong, then fix it. Properly repaired, that's a valuable mobile compressor, and well worth spending the time and money.
1:23 you need a truck from the 80s, 70s, 60s, 50s for this. Long bed, regular cab, 2wd. More room in the back for scrap picks, but the best thing about them is they're so much more manageable to load and unload. The tailgate on one will be a good two feet closer to the ground than on your modern taco, which means the angle on those ramps is a lot shallower, which means itt'l be easier on your back to load things into and out of them. My first choice would be a Ford with a 300 and a 4-speed, as I have one and it's been a damn good truck to me. And also gets 20mpg. Your quad cab modern Taco is going to be the death of your spine you keep doing that.
Looks to be a single stage compressor to me,, is probably fine,, just need to repair the unloader valve or related parts,, 8 hp Honda motor is about 765 bucks new,, I think you should repair the bottom end if it can be done for a couple hundred bucks,, :-)
15:30 I just replaced the carb on my Honda engine DeWalt pressure washer. It was $25 for an entire tune up kit including a coil and plug wire. My problem was not checking the free play of the throttle plate and assembling it with the throttle shut. 2 blisters later and I removed the carb connected the linkage correctly and it fired up on the first pull.
After watching UA-cam videos of compressor tanks rupturing, I would not be interested in putting a used tank in service. The engine and compressor motor though are fair game.. great job.
Picked up a 6500kw electric start generator a couple of months ago a few blocks away. He bought it in '07 when the ice storm came through here and it just sat after that. He threw away the fuel tank and the carb was trashed. New carb was $15 for the 13hp engine and new battery $40. It ran like a champ and came in handy when the 100 mph winds came through a few weeks ago and we lost power for a few days. Think I will invest in a new fuel tank and just keep it.
51:48 pull apart the crankcase pull off the rod caps look at the berrings for wear on both the crank and the rod and rod cap if the crank Isn't too bad it can be string polished then need berrings installed a rod knock isnt the death of a motor 8hp motors are not a dime a dozen its about a 350 to 400 dollar motor or 50 bucks in rebuild parts. Labor is what cost so much, your teaching how to fix your own stuff to save money. Sure a 2.5 hp motors on almost ever push mower but 5.5 and up the cost for a new motor goes up fast. Repair parts dont cost much its the labor that scraps one. Now if the cylinder is bad or the crank case then its junk unless you can weld aluminum and machine it back to specs almost any motor can be fixed with reason provided its not tottaly distroyd a rod knock is not the death of one, now if the crank berring surface is really bad and you cant find a decent replacement then yes its trash. I doubt it is dammaged bad enough Not steel vers aluminum contact The crank shaft is steel the piston rods aluminum so is the piston the rod wrist pins steel also. My bet is the rod berrings are badly worn from lack of oil.
It's an automatic engine unloader. Older style gas compressors just had a valve that blows off periodically if the tank gets over pressure.. this design keeps the valves open when the tank is at the set psi to stop it overpressuring the tank and not needing to blow off and waste air.. there is usually and adjustment screw in that unoader valve thats missing which lets you set the tank air pressure.
Mustie “Hey guys how’s it going”😂 definitely one of my favorite channels much ❤️ from New Jersey 💪🏽💯🫡
Newark Nj in Musty1's house 🤩👍
Did you really say "How's it going" in the USA? Because it's a common greeting phrase here in Germany. Wie geht es dir
I*'m sure there is an engine around there that will work. Good free score ...as usual!! I enjoyed the nature scenes being back!!
A friend of mine had an electric air compressor about that same size maybe a little bigger. The electric motor burned out, I took off the motor and compressor because the compressor was slow to build air. I left everything else, plumbed it so he could hook it to his shop air compressor fill it with air and have a portable air tank on wheels. Gave new life to something that would have either been set off in a corner to collect dust or taken to a scrap yard.
Also good for making a bead blaster for helping seal tubeless tyres etc 🤩🤩🤩
I did the same with an old 20 gallon
Wow that's awesome ❤ I drive 18wheeler through NH ME all the time and never see anything that awesome! Thanks for sharing
Another great video indeed! Always on point and to the point. Blessings and respect!
So how did the factory install the screw with the nub on it?🤔
They screwed it in and scrimped the side of it to prevent you from being able to adjust it any further
Makes sense!😊
This is the air compressor you have. DEWALT D55275 AIR COMPRESSOR
The valve next to the gauge is called a unloader valve and it is missing some parts
If anything u can use it as a supplement air suply for tour air system
I got a air compressor. It has a hole in the bottom of it. I got it on the side of the road. Just wondering if you want it The motor works
I think that has alot of 10 hour days,6 days a week without any oil change hours on it 😮 Wonder if taking a little emory cloth to the crank and new rod bearing would tighten up the bearings to the crank and settle the hammering sound down
time to turn that air compressor in to a small V-Twin?
Hey Mustie, unrelated question, but have you ever worked on an old 2 stroke Lawn Boy mower? I’d love to see that video.
Afternoon Mustie fans…..something a bit different, surprised we didn’t hear the Air turn blue, with that loading struggle into the truck bed……lol 👍😜🇮🇲
your d55275 or d55276 is missing the pilot valve.
I don't understand why you can't rebuild that motor maybe you should do a video on why
if nothing else good aux tank
Another great mustie 1 video! Keep them coming. Just one small note, 90% of the time the crankshaft ( on Honda GX series are forged steel) are undamaged or worn I very confident that a new connecting rod will make it perfect again. It can be replaced without removing the head, just pull the piston back just far enough to expose the wrist-pin. You can remove the clip and pull out the pin with transmission snap-ring pliers. I have done it more times than I can remember.
The unloader valve has a spring in it that pushes down when its in the run position. So without it your basically in the start position permanently and that’s why it wont build more pressure.
I was almost screaming at the screen that the unloader valve has missing parts and the sticker beside it was dead giveaway 😅
My guess was that it just needed to turn 90° to close that relief valve, like the diagram showed...
😉👍
@@xumot Mustie don’t read no instructions
@@gs1100ed I know he thinks that that is cutesie and all that nonsense, but in fact it costs him time which costs him running things he claims he'll sell instead of investing at least part of his financial empire. I mean, maybe do half of it, and the worst you are is half wrong.
@@xumot As long as he is never, EVER an A&P mechanic, he can't hurt others with his apparent intentional illiteracy.
I'd love to just walk around mustie's shop and look at all the stuff. Truly impressive
A real museum. The kind WE like
Sunday morning Coffee and Mustie :)
Sunday evening and Mustie for me. In Austrlia.🤠
Same, two months later. 😊
It’s not a Mustie video unless something is “pissing out” 😂
Who's the new guy? lol
mustie, old buddy, your going to have to get a young helper to keep your old back from giving out on you. All us followers need the Sunday shot in the arm from all your great videos. Maybe you could compile a Best of Mustie Series. Take care, Bill
I'd like a whole vid about the IMMENSE parts stash 'ol Mustie has! How on earth did you acquire so much stuff? Is it a generational stash from your dad? How the hell old ARE you?
That engine on your compressor is a standard, off the shelf model. The air control for the throttle is an add on. They are typically a $25 item at some hardware stores. They operate like the pressure switch on an electric compressor motor. The difference is that the engine doesn't cycle on and off, but causes the engine to surge for compressing the air, then when the call for air is fulfilled, it goes back to idle. The Amish in my area have a system for a line shaft driven compressor off of a stationary engine where there's an air cylinder on the base of the compressor, and a spring so that whenever there's a call for air, the cylinder slides the base, tensioning the belt and bringing it to pressure. When the call for pressure is fulfilled, the compressor springs disengage the belt until there's a call for pressure again.
Well now I need to see if those control thingies exist over here, because my petrol compressor (when I get it running) just has a blow off valve, the engine runs full speed all the time. Which annoys me.
@@exasperated i have the same, would be cool to find a retrofit kit!
@@exasperatedThe unloader control valve in the side of the tank is only part of the system.
Mustie is missing the manual control portion of that valve.
If the compressor isn't set up for it you won't have the unloader valves to shut off the intake air in the cylinder head(s).
You also need the air throttle kicker to push the governor up off idle.
@@exasperated Without the full unloader system your engine can not over come the tank pressure, so it has to run at rated RPM.
A short block is $170.00 for that. Even A connecting rod is available for $13.00. If the crank lobe is not damaged then it's worth 13 dollars to fix.
probably want a sump gasket too but still pretty darn cheap and another good hour video at least...
I am always amazed at the stuff that you get for free period I live in a relatively affluent area and none of these Snow blowers or lawnmowers or compressor's would be offered with anything, but a 25 or a $50 price on them, no matter what condition they were in.
Same here, wouldn’t give you drink of water much less anything of value but it is mostly poor people around me. The poor people would help a person more than the ones who have money
Thats because nobody throws valuable equipment like these "finds" in the trash
It’s simply because nobody ever got rich by being generous 😢
@@Fatbodypylethat is not tru. On maui I found a nice pressure wash that started and ran .. even had gas in it..also q big generator that ran no juice but it ran..also in new Mexico someone sat a kawasaki generator with zero wrong with it by the curb and a sign saying free on it .. yes it's tru ..
Just depends where you are. I used to go around with a trailer once a week and come home within a few hours with a full load of "trashed" stuff. I was living in Southern California too.
The valve missing in the side is an unloader valve. You relieve the head pressure on the compressor to start. Cool find though!
The unloader valve also sets the pressure the compressor can build in the tank, and is adjustable. Air pressure from the unloader valve also keeps the compressor pistons from building any further air pressure when tripped.
I recently fixed a similar compressor with a smaller 5.5hp Honda. What happened to it was it developed an air leak so it would never reach 120psi and the engine overheated because it was 90 degrees outside that day. The biggest problem with these small Hondas is that the connecting rod is just pure aluminium with no bearing material so the rod seizes when the oil gets to thin from overheating! Bought a new rod for 20$ because the crank was ok after polishing, so its was a cheap fix.
That’s what I was thinking a cheap fix for the engine. The piston is likely perfect, with great compression. Adding a few missing parts and this compressor can live again.
The no bearing material is unfortunately all too common on small engines. As a small engine tech working at a shop I find it rather sad how many people I feel obligated to advise that they replace equipment, especially the cheaper stuff, rather than have it repaired as their cost will be lower in doing so.
@@davidwildridge8080 Mustie very very rarely purchses anything except rebuild kits for the 2 stroke motors he fixes on weedwhackers, at which he is very talented.
@@silasmarner7586 he is great at troubleshooting. I understand on anything used the name of the game is to keep expenses to a minimum whether you are selling or keeping.
I can't believe the good stuff you find "out by the road". I used to pick up lawn mowers and weed wackers but stuff like this is MONEY. You haul some free stuff that is really good salvage stuff.
The content pays more not too fix it
It is my personal philosophy that any machine that uses a Honda GX is worth attempting to fix. That GX is hard to beat and that whole setup is pretty decent quality wise. Just rode hard and put away wet, with minimal care and maintenance. But thats why its got a GX so it will just work for thousands of hours reliably.
Honda motors rock
That second air intake port is loose so you can't detect a vacuum when you block it with your finger. It was most likely sucking in the air at the loose connection. That's my guess as to why you can't feel anything on that side.
Mustie.1, "Lets Wrench". God Bless
Darren you'll be kickin' yourself that you haven't put in a removable winch on the back of the bed on your truck!
That had you puffin'.
I guess he hasn't found a free one yet
I have a very similar emglo compressor that has a k series kohler on it. 4 cyl 2 stage. make sure your pop off and unloader valves are working and not sticky that compressor if the pop off sticks will pressurize well over burst pressure on most tanks. don't want the big kaboom to happen to ya. also mine has a clutch on it so when the engine throttles down it doesn't turn the compressor. not sure if someone might have eliminated it on yours. and you are missing the whole top of the pop off/unloader valve there. the little diagram is showing you the position of the valve handle you are missing. you adjust the valve for your shut off and kick on pressures. when the valve pops off it shoves the throttle to idle and fires the unloader valves that stop the compressor from making pressure so it is not fighting against tank pressure when it trips over to run again when pressure drops. At idle it just freewheels and makes no pressure but as i said your missing the guts of your pop off valve
MUSTIE NEEDS A CRANE MOUNTED ON THE TRUCK, OR A FRONT WHEEL DRIVE VAN
It would have been a lot easier to pull it up, instead of trying to push it. And he has Crusty the truck, that has the fold down sides, about as low as any mini van.
He has a winch in the bed of the truck.
I have this homemade arch thing mounted across the truck bed and an ATV winch that pulls the heavy thing (including little car motors) up and then the cable has a cable clamp that causes the cable to pull the arch into the vehicle and then I reverse the winch to lower the load down onto a tire in the truck bed... getting stuff down a ramp is easy.
I really would like to see more of this. Maybe dissect the engine and show us all what really failed and then get this back to operating like normal. That would be great to see! 😊
Amazing what you find on the side of the road there. I guess folks here in Oklahoma know how to fix things as I’ve never seen anything like what you find!
I always think that. Where I live nobody gives anything away!
Affluent area. People with money don't need to fix stuff.
I got a "new" lawnmower once. Gas in tank looked like orange juice. Been stored for years. But it was new when put away. And yes, was in a affluent neighborhood.
People in my area throw out
Does not happen in the UK. If it does it is pretty much always fly tipping which is illegal. Also may be a kick back via health and safety law; more's the pity for us machine types.
Hey man great video, check the cost of a new rod they are not that dear, had to replace one in my honda ride on not that long ago.
Also as others said unloader valve parts missing and pull the compressor valves and clean the carbon from them, takes very little to stop them from working correctly. Handy unit for the lake or picking up vehicles with flat tyres
boy i live in an area not very far from you and i never see this stuff for free what gives?
Since Car Talk went off the air, my favorite part of the weekend is this channel and hearing Mustie laugh. 👍👍
I so agree. Listen to the click & clack bros. For years. ( Miss the radio show )
Don’t be like my brother
@@sccarguy8242Don't be like my brother
You have a talent for finding fixable machines! In my neighborhood, that compressor would be listed as "mint condition" and the seller would be quick to let me know that they need to get at least a few thousand for it - and that it's worth a lot more than that!
I know what I got 🤑🤑🤑
LOL So true!
Yeah don't forget the "I know what I got"
One compressor equals one hernia.
Sunday night in AUS, thank goodness for Mustie, nice work. I wondered if someone was trying to run that engine on 2 stroke mix by mistake.? So much goo in the carby. The compressor will take an air compressor oil, probably a 68 or 46, Castrol’s oil would be AIRCOL PD (for piston type) 46 , 68 etc etc
not that 2 stroke would really hurt it. smoke like mutha, carb get gummy but thats about it. we've had dingbat summer helpers run 50:1 2 stroke thru our generators , Hustler zero turns. a can of seafoam later, youd never know
Put it aside until you find another engine?? You probably have 20 of the out back you could piece together right??
There's a bunch of pneumatic controls on that, no electric. There's an unloader valve to help startup, a pneumatic solenoid to rev engine when tank pressure drops, and obviously a regulator for supply, and a pop off valve to keep the tank from blowing up.
I'd make damn sure everything is working right before running for very long.
These are very serviceable, easy to keep them running forever.
Just like the unloader valve(s) on a pneumatic brake truck.
You gotta spend 20 bucks first
That was my thought about the pop up valve. It usually have a little "keychain" ring, at the top end.
@@JimsNBHomesteadyep. And this fella doesn't take out his wallet for much of anything. Thats a fact.
@@gags730 😆 Cheers my friend!!!
How do you find all this killer stuff there's never anything remotely close to anything worth a damn on the side of the road ever where I live in Washington State
Darren, a friend's employees were trying to get their Honda powered pressure washer running, but were unable to. I told them to check the oil level. When they checked it, it was low. After filling it, the were able to get it running. My point is, low oil allerts are made to prevent the engine from starting on low oil, but might not be to shut it down when it leaks out or burns oil. This might be the case on this engine.
As for the air leaking from the tank, it seems to me that there is an over pressure device (OPD) that's missing from that check valve.
Honda engines use a internal float switch to detect the oil level. The low oil shutoff works continuously, not just when starting.
There are two parts of the system, an oil level sensor inside the engine and a latch module with black and yellow wires screwed to the side of the engine.
The sensor is a simple float switch. The yellow wire coming out of the crankcase float is connected to a guided bobber with a pointed contact at the bottom that taps against the metal case as the oil gets low.
You might think that yellow wire could directly short out the magneto to shut off the spark, but the magneto outputs a few amps of current and the float switch contact isn't especially good when it's barely bouncing on the case. So there is a "latch" module. That small metal box actually has three contacts, with the case being the third. When the circuit detects a little current flowing through the yellow wire, it triggers the SCR to conduct the bulk of the magneto current for a few seconds through the metal case.
@@1djbecker apparently his has some issues with it as the oil was very low. However it was a genuine Honda, so it should have done it's job.
Your missing a 125PSI pop off valve with a relief knob. You would stand it straight up to start the engine and then lay it on its side to run and buildup pressure
Good morning everybody and thumbs UP to Mustie1! 👍
I would remove the spark plug and use drill to oil up the engine really good before even trying to start it
Do the same thing on all engines i over haul also
I love stuff found on the side of the road, always interesting how people either give up trying to fix something, or they don't even try to fix it, because they don't know how. Mustie1 usually can fix anything, that's why i like my sunday morning's watching what comes into the operating table. G-d bless y'all.
I'm like that. With. Pc.s and electronics
@@gerry-p9xMe too. I like fixing electronics
I'd be all over that compressor!
Another super video. I expect nothing more from this fabulous down to earth guy. Thank you Darren. Hope all is well. Stay safe and enjoy.
49:04 49:06 😂
Harbor Freight has the 8hp knock off of the Honda engine for Inside Track price of $270. Seems like the only other thing it needs is the unloader valve and spring and a drain valve? Cleaned up and running with a that new engine it may be worth a good bit more than the approximately $300 you'd put into it?
those honda engines are like gold up here in canada, so its not worth fixing it?
watching Mustie talking about his rain while it's raining here in Clermont FL is sooo therapeutic, I have decided we need more Sundays in the week so we can have more Mustie"s videos.
How is the wine there in Clermont? Lol
I agree, from Orlando .
What a find, I wish people would leave things like that in the UK. America does seem to have a more hands on approach and more "gas" powered tools. Great vid as always. Thanks Mustie.
From Somerset UK.
Do a video on how to make a one hour video with 20 minutes of content, pretty lame the last few weeks
can we save it if mustie cant its reall broken
Love it when Mustie says... let's go check the stash and there are tones of everything available
But apparently not another Honda 240 engine.
Thank you for another great video.
The unloader/pilot valve (where you were spraying lube on the check ball) is missing all of its guts. Part of this is the toggle that is pictured on the label to the right. This makes it unable to unload the compressor heads. Your compressor is a two head, four cylinder, single stage compressor (maximum 100 to 125PSI rating.) Each head compresses air separately from the other. Each head has its own discharge line, then both lines tie into the common manifold below the compressor. There is a check valve below this (in the tank) that allowed you to back feed the tank through the outlet pressure regulator. The reason you could not pressure the tank past 30PSI, with the compressor, is that one of the inlet valves in the other head is either stuck open by debris or a valve disc could be broken. This lets the air from the working head to escape thru the other head. I learn more from you about small engines every week. Thanks!
Funny how the guy waited until you had it loaded before he spoke up.
Yeah but I mean... It was free. Hard to complain, really.
I have a Dewalt Wheelbarrow compressor similar to this one, but its the dual tank model. It's all based on pneumatic controls, and the port that is leaking controls the engine speed, just like you thought. The diagram is that missing piece, you set it to start so you're able to pull start it without it reving up on its own. It's also missing the belt cover. Seems like this unit became a parts machine.
my dad works as an inspector a place where these compressors are made. The tanks are built on the tolerance of the tolerance to save on costs. The top end of the compressors are basically designed to be mechanically worn out before the tank rusts and becomes dangerous. Unfortunately these things are throw away compressors.
I just found myself giggling uncontrollably at the sounds the compressor was making around 29:33 onwards, totally nothing to do with it sounding like someone farting into their coffee cup I'm sure... :P
Do you also laugh uncontrollably at a clown with big shoes slipping on a banana?
THAT PART NEXT TO GAUGE HAS 4 PURPOSES. HIGH PRESSURE POP OFF, (WHICH IS MISSING), CHECK VALVE (WHICH IS LEAKING). PRESSURE CUT IN, CUTOUT ADJUSTMENT. AND THROTTLE KICKDOWN PORT. MY GUESS SLIDER ON COMPRESSOR HEAD IS EITHER UNLOADER, OR PART OF PRESSURE ADJUSTMENT CUT IN, OR OUT, MAYBE BOTH. PS: ON MY GENIE PRESSURE / UNLOADER VALVE, IT CAME WITH 3 DIFFERENT COLORED SPRINGS FOR ADJUSTING PRESSURE TOO. DIFFERENT SPRING RATES FOR EACH COLOR.
Morning
Do yourself a favour, next time pull things up the ramp before you do yourself a mischief, a painful one at that.😜
Sunday morning with Mustie never disappoints
G'day, Mustie! Nice job! Enjoyed the video! By the way... You have a DeWalt "Model: D55275" Gas Powered Air Compressor, with a Honda Engine 8 HP, 18.3 CFM @ 90 PSI, Max PSI 150 "Auto Idle", and Low Oil Shut Down.
One of the components you are missing... As you mentioned, Causing the unloader valve to open and vent the excess air from the compressor to the atmosphere. As the compressed air is used and the pressure drops to the load setting the pilot closes and depressurizes the unloader valve. The unloader valve then closes and the pressure begins to build again and repeats the cycle.
If you are interested, they're made by 'Conrader' of Erie, PA. Piloted Unloader valves, the Unload Set Pressure Range: 40 to 250 PSI (Model: BG-Series or RCB-M). Enjoy! Cheers! ❤✌🏻🛠😊
P.S. I hope you'll consider, re-powering (this DeWalt "Model: D55275" Gas Powered Air Compressor). 👍🏼
You need to fabricate a jib crane for your pickup to lift the heavy stuff in. Ramps are ok for somethings but don't do it all, for sure.
I think Abom should donate his to the channel. He never uses it!
Go online for a trouble shooting plan or better, a new unit diagram. loose parts cause air intake and loss of control pressure. love seeing your diagnogistic procedure. Add a wench or swing arm wench to your truck.
So I sat down with my cup of coffee to wake up to Mustie!!! This is my every Sunday wakeup 🎉❤ thanks Mustie
just a thought . make a compressor into a engine . overhead valve external cam pully to run off crank . i would strip it down just to the tank and make a portable storage air tank to air up tires on things you find to bring home . i think a engine with that kind of head facing back .the oil draining out while tipped up would be a bad design if you pick up and roll it the oil would go to the head . so a old style engine straight up and down would be better so it you move it while it is running most of the oil would stay in the bottom . i think it was moved to much or fell over while running
I can say for certain that no one here in Germany would throw out a machine like that, or let it get in that condition. This is the result of taking abundance for granted. Hope you get it all sorted out.
Absolutely and the same here in Australia. Americans complain about how much things cost but most have no idea just how cheaply they can buy things. I regularly compare prices and generally prices in Australia are about double what you pay in the US.
It's the price for ww2
@@rcman1023 ?
Coffee time
Could probably find some bearings for the crank and check the internals for anything else. Would be pretty cheap to rebuild
I was wondering this. Is it too much effort and cost to rebuild the bottom end to eliminate that knock? Feels well worth it for an 8HP honda compressor.
Its a GX 240.. Probably can rebuild it cheap!
Mustie1 the only guy I know that defies gravity. Most people would have pulled the compressor up the ramp.
The notch marks showed manufacturing date 2005 (5) and January (A: A to M is 12 letters, so 12 months)
Now to watch the rest, as I bought a compressor at an auction so might learn something. 👍🏼 Thank you Darren
It's gotta be worth polishing the crank journal putting a new rod in the engine.
you got me hooked, first thing i look for on sunday
Woo hoo
Owell just braze up the hole and clean the carb, she’ll run again
Jb. Weld the tank
@@gerry-p9x I would just weld it. Just run an extra gas hose from the MIG bottle into the tank and purge it for a few minutes before welding.
It's worth cracking open the engine case. It may be something as simple as a $40 connecting rod.
I haven't seen any goodies on the curb near me in 10 years
$2500 for a new 1 same as that with the Honda engine here in ontario. That compressor is not all that old. Those Honda engines lost forever. My compressor's 25 years old had to replace the pump, but the engine still runs strong..
Canadians fix stuff with realistic efforts to make things reliable and useful
Time for a cable hoist and straps for loading before you get a hernia happens to the best of us !
Pulling compressor up ramp instead of pushing works better.
Having had an inguinal hernia repaired via open surgery three weeks back... I completely agree! I'm banned from heavy lifting for 8 weeks. I'm still in a lot of pain and healing as I type this!
This guy make sure that nobody else gets anything goes out every damn day and grab everything along the road that’s worth anything to keep anybody else from having it!
Strict speaking, the compressor should be filled with 'compressor oil' however, our old Ingersoll Rand has been running with a 20 weight diesel engine oil for at least the last twenty five years. The pipes to the cylinder heads is to oil the valves and upper cylinders - it's a 'total loss' lubricating system, but the amount of oil that gets to the heads is miniscule, but, you do need to maintain the oil level in the casing. It should be checked at least once a week, and oil added when necessary.
I can't speak for everyone, but I'd love to see that engine dismantled and see what went wrong, then fix it. Properly repaired, that's a valuable mobile compressor, and well worth spending the time and money.
Time for a winch
1:23 you need a truck from the 80s, 70s, 60s, 50s for this. Long bed, regular cab, 2wd. More room in the back for scrap picks, but the best thing about them is they're so much more manageable to load and unload. The tailgate on one will be a good two feet closer to the ground than on your modern taco, which means the angle on those ramps is a lot shallower, which means itt'l be easier on your back to load things into and out of them. My first choice would be a Ford with a 300 and a 4-speed, as I have one and it's been a damn good truck to me. And also gets 20mpg.
Your quad cab modern Taco is going to be the death of your spine you keep doing that.
Looks to be a single stage compressor to me,, is probably fine,, just need to repair the unloader valve or related parts,, 8 hp Honda motor is about 765 bucks new,, I think you should repair the bottom end if it can be done for a couple hundred bucks,, :-)
15:30 I just replaced the carb on my Honda engine DeWalt pressure washer. It was $25 for an entire tune up kit including a coil and plug wire. My problem was not checking the free play of the throttle plate and assembling it with the throttle shut. 2 blisters later and I removed the carb connected the linkage correctly and it fired up on the first pull.
After watching UA-cam videos of compressor tanks rupturing, I would not be interested in putting a used tank in service.
The engine and compressor motor though are fair game.. great job.
Picked up a 6500kw electric start generator a couple of months ago a few blocks away. He bought it in '07 when the ice storm came through here and it just sat after that. He threw away the fuel tank and the carb was trashed. New carb was $15 for the 13hp engine and new battery $40. It ran like a champ and came in handy when the 100 mph winds came through a few weeks ago and we lost power for a few days. Think I will invest in a new fuel tank and just keep it.
51:48 pull apart the crankcase pull off the rod caps look at the berrings for wear on both the crank and the rod and rod cap if the crank
Isn't too bad it can be string polished then need berrings installed a rod knock isnt the death of a motor 8hp motors are not a dime a dozen its about a 350 to 400 dollar motor or 50 bucks in rebuild parts. Labor is what cost so much, your teaching how to fix your own stuff to save money.
Sure a 2.5 hp motors on almost ever push mower but 5.5 and up the cost for a new motor goes up fast.
Repair parts dont cost much its the labor that scraps one.
Now if the cylinder is bad or the crank case then its junk unless you can weld aluminum and machine it back to specs almost any motor can be fixed with reason provided its not tottaly distroyd a rod knock is not the death of one, now if the crank berring surface is really bad and you cant find a decent replacement then yes its trash.
I doubt it is dammaged bad enough
Not steel vers aluminum contact
The crank shaft is steel the piston rods aluminum so is the piston the rod wrist pins steel also.
My bet is the rod berrings are badly worn from lack of oil.
Compressors use reed valves. They do break, but they're fairly easy to replace.
Mustie I now know why you don't have no problem of your pants falling down!!! Lookie at all those Belt's!!!😅😊
It's an automatic engine unloader. Older style gas compressors just had a valve that blows off periodically if the tank gets over pressure.. this design keeps the valves open when the tank is at the set psi to stop it overpressuring the tank and not needing to blow off and waste air.. there is usually and adjustment screw in that unoader valve thats missing which lets you set the tank air pressure.
Hahahaha cheap Amazon rebuild kit and your engine will be up and running. That thing has.plenty of life spend 60 bucks and get it rolling again.
Jeesh, I can see I could really use this air compressor. A new connecting rod and something on the air control.