Mack B-21 Goes To A Gas Station! But It Doesn't Go As Planned
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- Опубліковано 21 сер 2024
- We take our Mack B-21 (truck 10) to a gas station for a fill up! Things dont go as planned but it might not be that bad! Stay till the end to see a teaser of the problem!
#macktruck #bmodel #firetruck #willitrun #willitdrive
You need to remember there is a recirculation valve on the fire pump to the engine to help cool the motor,if it is not closed fully you will loose water in the radiator.
I didnt know this! We suspect our only water loss was from the radiator leak we found after the drive. Shown at the end of the video. But we will have to check out this recirculation valve! We had 2-3 hours of run time with no loss before the drive though (aside from the air pump plug we replaced) so Im guessing its closed but cant be sure, we will definitely look into it! Appreciate the tip and thanks for watching!
On my fire truck and every other I have ever seen the recirculation valve has nothing to do with the radiator, if you're sitting in pump idle up to maintain a pressure line during operations but no to minimal water flow you use the valve to feed water from pressure side back to tank to keep the pump from steaming and Cavitating. Pumps are cooled by the flow.
Also if you're in cold climate you use it to keep tank from freezing
Nice to see this beauty out on the road; that exhaust rumble does bring back memories of hearing this truck (or one of its five stablemates) responding to night fire calls in Seattle...that, and the horn blast! Wow; your gas is $2/gallon higher than it is here in N. Ohio!
Southeastern Massachusetts $3.12 gallon.
Love your channel and the old Macks. I see where the typical conventional coolant (green) mixed at 50/50 raises the boiling point from 212 F (water only) to 260F. After you figure out what the issue is with the cooling system. Suggest a flush and fill with a good premixed 50/50 conventional (green) coolant. I have 28 years experience as a Lubricants/Coolants specialist at a major US oil Co. Hope this helps and keep up the great work !
Heh heh, those old Mack gassers weren't known for power. Matter of fact, I'm impressed to see it made 45+ on the highway! My grandfather had one that was a few years older, back in the 1960's. It was originally a truck/tractor that they converted into a wrecker. It wouldn't pull your hat off, but it had a whole gearbox full of 'first gears' that made up for it!🤣 EDIT: Just a little FYI, check your timing! These old motors don't like the timing too far advanced, or they WILL overheat. Also if your idle circuit is good on that carburetor, turn your idle speed down to 500 rpm or so, to keep it from 'dieseling' when you shut it off.😉
Thanks for the tips! These firetrucks dont have Mack engines, they actually have Hall-Scott 1091s in them which were known for lots of power! (For the time) They still arent geared to go very fast though haha. Thanks for watching!
GREAT JOB GUYS ,, MY SON MAX AND I LOVE THAT GREAT FIRE TRUCK,, GREAT PARADE FIRE TRUCK IN TIME..THANKS...GREAT VIDEO!!!!
Perfect for your hometown parade
Damn! What are the odds?!! So since yesterday, I came across the first of your vid uploads, when you & your Pa were first attempting to retrieve this really bitchin’ ‘58 Mack fire truck &, by the time I got to the end of that video, Sub’d & Liked it.. continued to watch proceeding uploads in order, liking each. Get to this one this morning and see you going thru that switch. I’m in the middle of refurbishing a 1966 IHC Scout 800B and was literally going through its light switch, cleaning up contacts and such; EXACTLY THE SAME STYLE SWITCH! Internals are identical! Crazy coincidence. That quick flash image you included in I think was vid #1 of that “crew cab” or, “sleeper cab” Mack, was super bad-ass! Can’t say I’ve ever seen one like that before. I’ve owned &/or, worked on a massive range of vintage/antique automobiles/vehicles from nearly all decades but, have always had a soft spot in my heart for vintage fire trucks but have yet to have one.. maybe someday! Would be one heck of a mobile mechanic vehicle; especially if a 4x4 version from the 40’s thru 50’s!
Remember you CAN NOT RUN ON WATER ONLY you need the Antifreeze because its also Anti-Boil without it your just a Kettle on the stove
those switches are great and super rebuildable. The wiring on the other hand, super scary.
Sounds amazing....love that Hall Scott sound.
i will always watch when you post
Lucky you that didn't fall apart, at my 71 years of age, seen that, done that and still getting my hands greased from time to time, now just for fun, you just cooked the engine.
Great vid and beautiful truck,
Some of these B-model Mack fire trucks came from the factory with 354 Chrysler Industrial hemis.
For rusted nuts and bolts, screws, any type of corrosion a mixture of acetone and ATF at about 50:50 in a spray bottle works best.
Funny you mentioned that because my father would use gas and atf fluid on stuck bolts, valves, pistons, etc. Works like a charm if you let things soak 💪
Speaking of hot days ! I found out yesterday that the outside temp gauge in my car just blanks out above 122 degrees . 😳
bro. you're lucky to have that truck, and that truck is lucky to have you. please remember straight water will boil cooler than coolant. my advise would be to check the timing as later spark causes heating as does a lean fuel mixture. be sure both distributors are set at the proper time and advance correctly. once in a while the weights become sticky and don't advance as they should. as for the lean mixture, check for all vacuum leaks, especially the intake manifold. a product called "water wetter" does wonders transferring heat from the engine and i recommend it, i'm a user. goodluck with your project, when complete it will be a show stopper. my neighbor and i just finished a big engine job on a firetruck with a mack magnedyne so i know of what i speak. if i can help, reach out. best wishes.
Great tips! Someone else mentioned the timing as well, we will look into it. and i havent heard of "water wetter" but ill have to check that out. Thanks for watching!
@14:13 You can see/feel that of what I was meaning when I said in the previous video, about the room behind that big steering wheel. Fire engine operators needed to be slim and of course due to the job at hand quite fit just to wrangle the wheel when making turns. I want to see your pop behind the wheel next.
...back to the rest of the story...
p.s. edit: @16:49 ...looks like you start in 2nd (?) and you did preety good, you'll get better in time shifting up thru the gears, I'm guessing you've double-clutched before at some time.
Haha he can fit and drive it, bit tight though! 😁
And yes im a truck driver by trade however we float gears most of the time so my double clutching is a bit rusty! Little more seat time and i should be able to get the shifting down. Its a bit different than modern trucks. Lots of fun though! Thanks for watching!
Great content.. 👍
My dad has a 42 Kenworth he picked up from Oregon a couple years ago, that thing goes around 50 mph max bob-tailing
I'm in Kenosha, Wisconsin. 87 ethanol can range between $3.38 to $3.80 currently. $5.39 ow 😮
Love the Mack
being from washington love the video i live in sno ho great video 35mhp lloks like 65 in that lol
Gas station on Auburn Black diamond rd. , I live over by Kentwood HS.
great vid and beautiful truck, gorgeous area, have family thats been tryin to talk us into movin the ranch to oregon or washington
Awesome! Great that you took the headlight switch apart and cleaned it up, you did not show us the dipper switch, could you not have done the same with that or was it actually broken? Your fuel is a lot cheaper than what we pay here, heavily taxed... greetings from the UK!
Unfortunately the high low switch wasnt rebuildable
Don’t jam it in gear it will egg shape all the crosses in the U joints causing drive line failure
It’s under three dollars a gallon here in Florida
Superglue on both side of glass
The bears have come to watch
Bro when r u coming back with another video you guys have some awesome stuff so put something out there young brother’ c’mon get in gear!!
We have something that will be coming very soon! Ran into a whole bunch of hang ups with this next video but we have been working hard to wrap it up. Sorry for the wait but these old trucks can be a pain!
@@Edward-Thaine I hear ya young brother just keep pushing ahead and eventually it’ll come altogether so I’ll be waiting patiently good luck!!
Nice rig.
Is there any way to change the rear end gears?
At lease it's flat glass...
This thing is epic.
What are you planning to do with both of the Mack's? Would they be for sale?
The likely hood we have to sell one due to the amount of room they take up and the small space we have to work with is high. Gonna be hard to part ways with though!
I'm in Kentucky, whether or not I could come get it depends on the price.
Well if we ever do decide to sell one ill let you know. No plans to sell yet though.
Looks odd without hard suction racks and ladder racks. Too plain sided.
Does it haul water for a fire?
did the gauge say over heat? or is it just a bad rad cap?
gauge was reading 160 so the gauge is off