Briggs & Stratton Riding Mower Engine Head Gasket
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- Опубліковано 5 вер 2024
- This video provides step-by-step instructions for replacing the head gasket on Briggs and Stratton small engines, commonly found in Toro riding lawn mowers. The most common reason for replacing the gasket is when making repairs to the engine.
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All of the information in this gasket replacement video is applicable to the following brands: Briggs & Stratton, Toro
Tools used: 1/4” socket or nut driver, 3/8” socket or nut driver, 5/8” socket or spark plug wrench, 1/4” hex bit, large flat-head screwdriver, T20 Torx bit screwdriver, torque wrench, gauge
Model displayed: Briggs & Stratton riding mower engine 331977/0010-G1
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Great video! It was a choice of $1000 for a new engine, up to $3000 for a new tractor. I replaced the gasket, changed the oil and new spark plug/filter for under $60.
Same!
I really liked the video, very complete. Only problem that I noticed was that my engine was not quite as clean!
😂😂😂😂 Mine has a ton of oil in there
Haha, same here
Nor were my hands after :P lol :D
It is very easy to remove head without undoing the valve rockers! Just unbolt the head and pull the stem and head as one piece. Make sure you note that the stems are not identical! The steel one is the exhaust and the aluminum being intake. Be sure to always install the stem the same way it came out do not flip it end for end. It would still function but if there were any wear that was matched it is always better to install as it came out. Still check valve clearance. Gor those without inch pound torque wrench it equal 14-18 ft lbs of torque
Very good quality, clinical precision! If only they had these videos when I was in high school, shop class, and garage tinkering.
That's what I call an informative , no nonsense accurate repair video
THANK YOU so much for making this video! My local 🚜 dealer wanted almost $500 to do this exact same job. Thanks to your video I ordered the things I needed and had your video for guidance every step of the way. And I really appreciated your providing all the torque specs for all the bolts. A couple of other DIY videos indicated they liked to add Permatex copper Spray-A-Gasket to the new head gasket, so I added that to all 3 gaskets (head, rocker arm cover, & exhaust) and I'm glad I did (I put one small scratch in the head scraping off the old gasket material and the copper spray gave that gasket just a little extra for that imperfection in the surface of the head). Another user showed a great way to gently but effectively remove all the material the razor blade can't get off: spraying the surfaces with WD-40 (or an engine cleaner) and using 400 grit sand paper to wet sand the remaining material off. That really helped get what scraping alone couldn't. Can't thank you enough for making this video! As Red Green says, "If the women don't find you handsome, at least they should find you handy!".
I sanded with 400 grit and WD too. Worked perfectly. No smoke and only spent $50 for gaskets (head and valve cover), oil, and new air filter. Runs perfectly.
Thank you for saving me $350 to fix my John Deere. I watched your video about 10 times before I opened my deere and at each step everything was as you explained. I got the gasket and sealant from Amazon, and the rest was just as you presented. This was great!
Tom
Great job Tom!
Thomas Ledvorowski
a friend of mine bought a brand new zero turn mf riding lawn mower and only got 2.5 seasons out of it before the head gasket went . the warranty ended 3 months prior and the place " kmk sales " would not help . not good people . so now the owner has to haul the mower 80 miles to the nearest dealer to see if they'll actually be able to get a warranty on an obviously defective part . its obvious the part was designed to fail to make someone gain wealth .
@@repairclinic i want a better head gasket then an original that will probably fail within the same time frame . those gaskets are no good and fail over and over again .
@@carmichaelmoritz8662 So does anybody off a better aftermarket gasket that you know of or may have found? I totally agree with you. OEM gasket just going to eventually blow again.
.003 - .005 : Intake Valve
.005 - .007 : Exhaust Valve
I just stick with 4 on both 😊
Thank you. I watched portions over and over as I progressed through the rebuild. When I had it all back together, it started smooth as silk. Again thank you!
This was a great video. I was able to completely disassemble and reassemble in one afternoon. I would only recommend converting inch-pounds to foot-pounds because most torque wrenches come in foot-pounds. Thank you for a clear and easy to follow video!
Most 3/8 drive torque wrenches are set in In-lbs. The problem with Ft-lbs is the numbers are way too low. Most 1/2" wrenches won't go below 30-40 ft-lbs, and even the ones that do are likely not accurate that low. 150 in-lbs is only 12.5 ft-lbs. For torquing wheels, suspension parts, etc you want the bigger wrench, but you need a smaller one for a lot of things, too. Worst case, the conversion isn't exactly hard, either. Just divide by 12.
Awesome Video, very helpful. I like that you also included the torque specs as they can be hard to find sometimes.
Thanks Ben!
I missed that the torque spec given was in "inch pounds" not "foot pounds" and broke a valve cover bolt. Don't be me, 60 inch pounds is 5 foot pounds.
Great video with great detail. My exact mower. 1st engine repair I have ever done. Went very smooth. No more smoke!
You know what's great about UA-cam... There's. A. Video. For. Everything.
Having no prior experience, I was able to replace the head gasket on my 2000 Toro Wheel Horse 16 HP OHV Briggs and Stratton engine thanks to this RepairClinic.com video! And it worked perfectly on the first try after reassembly. Had to use carb cleaner and wire brush drill bit to get all the carbon desposit from inside the combustion chamber, but total success! Thank you for creating and posting this crystal-clear how-to video!!!!
Try not to use steel on front of aluminum where head gasket goes could strach it! 400 grit sand paper works good then clean
Thanks for the great video! It helped me replace the head gasket in my 21hp Intek Craftsman lawn mower. It provided all the needed info to do the job. My mower had been burning oil for a few years so it was nowhere as clean as your demo rig . Keep up the great job.
That is the cleanest mower engine I have ever seen.
If my head gasket had gone before I have mowed the lawn at all I’d be taking it back.
Clinical repair? Oh Yeah 🤠
Amazing video with all the details you need including torque specs. Thank you!
Awesome video. Gave me the confidence to do this today. Pretty easy.
I replaced the head gasket. Still has a ton of blow by going on from the dipstick tube. I’m kinda done with it. I’ve run out of ideas of what the problem is.
Wow. This is exactly what I was looking for. Excellent video instructions!
You're welcome!
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Beat video ever not some idiot talking and talking and talking and talking the only words spoken are words needed to be spoken love this video ten stars out of five
😂
This is perfectly explained. Thank you very much!
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You forgot to mention to resurface the cylinder head on a wide, flat belt sander or large diameter sanding disc to remove warpage and restore flatness, and to prevent another blown or leaking head gasket.
lol. That's the ghetto way. Needs to be properly done at a machine shop
I do have a machine shop. It's a professional machine shop, too. And lots of professional machine shops use a flat belt or disc sander to resurface all kinds of metal parts. Besides, what other machinery could be used to resurface metal parts with??? Also, I don't live in a ghetto. I live in the suburbs of a large city, very far away from any ghettos. I think your "ghetto" response is discriminatory and racist, too!
it must be nice to work on a motor that has not been used
I had this playing while I replaced the head gasket. Thank you.
Notice how clean and rust free the engine is... and how the silicone didn't squeeze out when the bolts were tightened. js
I wish this channel had a rebuild video for a B&S 42A707-1251-1 ... would be a lot easier than following the manual 0_0
With a blown cyclinder gasket cause your mower to loose compression, smoke, and mix oil with gas?
Afaik, yes. Often you will get lots of smoke as well.
Has there been any upgrade/mod to prevent the head gasket from blowing out again?
I already know how this is done. Why did I sit here on the toilet and watch this entire tutorial for 10 minutes 😂
I did the same thing. It must of hypnotized me.
Yep did the same. At least we are no longer full of it.
This was a very good video. Helpful to understand what the service center will be charging me for.
Why do I get all excited and watch when they show a movie on TV, replete with commercials/cuts/edits, when I own the movie on Blu-ray?
You must have needed a poo 🤠
How much should I expect to pay a shop for this type of repair?
Most single cylinder b/s is 180 which includes all filters and oil
Plus sharpening blades 😊
Some change 260😊
@@philliphall5198 thank you!!
thank you that was very help full because i have to change the head gasket on my mower and i had to know the tourk and tighten sequence
Just did this job. One question, does the head bolts require a retorque after a heat cycle? I can't find any information on wether it does or not. Thanks
hello, I am putting together a briggs&stratton 21B807 engine and I have a problem because there is an arrow on the piston. How to point it up towards the magnet wheel??
Unscrewing the head bolts in this video is wrong. You are supposed to break the bolts on the head about a 1/4 of a turn for each bolt then go back then unscrew the bolts all the way. Doing this keeps the head from warping.
Kenneth Nicely This is true and very important...
it wont warp if it is cold
I saw one unscrew with an impact
Kenneth, If you blew a head gasket you would have the head milled flat any how.
I've see videos that advise loosening and removing in the reverse order you tighten them.
great video, that is my exact model of crapsmen mower.
Do you need any gasket sealant?...I noticed none was used!
Thanks for a great how to fixit movie
I have to do this process tomorrow
You forgot the spill icon when moving the carb around. Unless newer carbs have a way of not dumping gas into the throttle body when moving them around, or sending it through the overflow tube. It would be a good idea to also remove the carbon from the top of the piston and valves. Also check the valves for spin while you're at it.
+kd9bwi Thank you for the feedback.
Do you need to drain the oil from the mower prior to removing the cylinder head ?
No tilt the front up a little and make sure the mower is in gear. Also block the back wheels. Some oil will still dribble out though.
Do you actually have to remove the valve cover?
when the torque wrench 'clicks' stop tightening
repair clinic can i use the same clearance gauge on the valve adjustment on this video for a craftsman 19 HP ,the model number 33R877 type 0002G1 ... i need to know the feeler gauge numbers to adjust the rocker arm and valve before ordering the gasket . thank you
I’m gonna try to do this repair asap!
It’s easy, take your time
What measuring tool did you use to space the valve gaps at 6:44?
Thats a "feeler gauge" i believe
What product did you use for valve cover sealant?
Why do you need to remove the push rods? Will the head not slide off/on over them?
I don't know, but EVERY video I've watched on this says to remove em, so remove them.
how much head pressure on 17.9 HP
Very well informative thanks for the video
hi repeir clinic
can you tell me how much the valves are calibrated
my riding mower craftsman ys 4500 twin intek.
Thank you
I hope hear from you soon
Question
do i need to hone a new briggs block ?
15c107-0003-f8
Good video
You're welcome!
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This engine is designed to blow head gaskets
I torqued my head-bolts to about 18-20 ft./lbs. (max. at 3rd interval). Am i good to go for My B&S Model 31H777, TYPE 0297E1 , CODE 040126ZD ? These are known to blow head-gaskets based on how they are designed with bolts being so far apart at the exhaust stroke part of the piston/head. So I want to make sure it's tight enough. First time around one of the bolts broke so i bought brand new ones (8) and they were a bit different ... tad bit longer, larger flange on bolt-top and they had 5 tick marks on the head bolt instead of 3. So was that a 5 grade-bolt upgraded to a 7? thanks a ton in advance!!!!!!!!
Well I bought a new click torque wrench, I wasn't aware of ft inch so I set it 150 ft lbs (scale I use for torquing my tire etc) and broke all eight studs, as they snapped I thought that was wrench releasing at 150 ft lbs.
man...... thats a tough hit. just know it was not for nothing. I am about to embark on this and you possibly saved me for most likely doing the same. Thanks for sharing the painful cautionary tale.
You didn't think something just wasn't right after breaking the first one?
ouch:-)
I just broke one stud and that's enough to be a bummer.
150 lb sound to much for first torque round
How do you align cylinder head
Outstanding
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We are always happy to help. If you would like to give us a review on Google, we would much appreciate it: g.page/r/CcVUrahZNozMEBM/review
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4:24 _Remove the New gasket_ . . . 4:47 _Install the New gasket_
Do I have to open the value cover just to reset the head gasket?
They did it here to remove the pushrod. You don't necessarily have to remove the valve cover to remove the head, but you will still need to reinstall the pushrod so either way you have to open the valve cover.
does this work the same if you have a 16.6 horse motor
10-4 got it. 👍
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We are always happy to help. If you would like to give us a review on Google, we would much appreciate it: g.page/r/CcVUrahZNozMEBM/review
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Thanks for the great video subscribed your an awesome teacher thank you thank you sincerely
Should the pushing rods be lubricated? if it is so, should I use regular oil or assembly lube?
The pushrods are lubricated with the engine oil when it's running.
@@tier3rd375 thanks for your help
Excellent video.
Something is wrong. Maybe the rods are not seated right. I need to check it again in the morning.
What sealing cover cap
Subscribed
Is that torque pattern from briggs?
Excellent. Thanks.
some One CAN tell me The name of The tool.They put betwen The valve it Is like a nife.
please help me
thank you
The tool is a Feeler Gauge Set
Of all the videos this is the best! Thank you
These motors if you mow a lot will need head gasket replaced once a year.
Alot like as in my mowing lawns everyday as a business?
@@evilenergy7121 yeah. I've used several these motors over the yrs and head gaskets always failed and the governor flies apart . There's a spring on the compression release valve and it'll fly apart often and sometimes gets chewed up in your gears on the cam shaft and sometimes break a gear tooth or two . Very bad design in those intek engines.
For sure, it’s a winter job on all of them and it will save you money and down time plus losing a good customer 😮😮😮
This is exactly what I needed ! Thank you !
nice video very good detailed video
I'm using a Nm torque wrench. 150 inch pounds = 17 Nm. I've got my torque wrench set on 17 and it feels like I'm going to snap the heads off the head bolts. And the wrench still hasn't clicked. Yours appears to click a lot sooner than mine. Should I keep cranking on it?
Very good video, well done.
Excellent video. Thanks.
Thanks
the new one makes it look so easy... well it's not easy working with an older lawnmower that hasn't ran for 3 years now with an exploded part inside the head
Repair Clinic, My engine has no power and it's a 15HP B/S OHV engine and it don't show smoke coming out of the oil filler. but I do have lots of oil under the cylinder, Would this indicate that I may have a blown head gasket? I have changed the plug, carburetor, fuel line, fuel filter and air filter and still have NO power, engine start good and runs well until you try to cut grass, 9/24/2016. Thanks Stan
i don't have a feeler gauge, nor the money to buy one, I barely have the money for the gasket, is there a way I can do this without messing around with the valves
no
you can get a feeler gauge for 3 to 4 dollars
Feeler gauge is $5 at Harbor Freight.
My aluminum push rod is slightly bent , can I replace it with a steel 1 from an old engine? Would it cause a problem to use steel pushrod for both?
Your good
You forgot to say polish any finger prints off the hood cover. Oh, and also you didn't say go pee if you have to.
WARNING ⚠️ (18 FT/LBS MAX)
Hey. 250 inch pounds WILL stretch or breaking head bolts!!!!
No more than 220 or 18 ft/lbs per bolt
WARNING ⚠️
250 foot lbs will, 250 inch pounds/21 ft lbs wont stretch or break pretty much anything
Anybody else see the scratches on that head lol razor blade bad idea
Mines losing power under load 🤷♂️
Did the job
I have a challenge for you repair clinic, make a video of how to replace the engine block, I will be truly impressed
Joseph Moore If we sell the blocks we will make videos for them. Thank you.
07:30 what sealant do you use? i thought there was just another gasket for that part
The right stuff
What are you doing with the screwdriver at 6:31?
RepairClinic.com Well, I understand the GOAL but do not understand what you are feeling for, pushing on, etc. This was a great video overall. This just seems like an important step and there is not a lot of detail at this moment IMO.
billwill.julz he cant see the piston position so he used a screwdriver see where top dead center was
Did all that, now I have hard crank and will not fire
How'd you fix it? Mine now is having a hard time cranking, starter motor is not happy
Thats one way to warp a good head!
Why does your website show two different head gaskets for the 31P877? Which one is it?
Hello Jonny the complete model info should look like this 31P877-0118-E1 click here: ua-cam.com/video/o1pd1-1UjcA/v-deo.html
RepairClinic.com 0110 E1
Please click here for the correct head gasket: www.repairclinic.com/PartDetail/Briggs-Stratton-Small-Engine-Head-Gasket/796584/1611261?modelNumber=31P877%2f0110-E1&ss=a22b303c21i957d778240&mr=1&TLSID=1943
Thank you for share video
Most time the videos are of Craftsman's alot
Yes my craftsman 21 horsepower is well known for blowing head gasket. Wish i known that before i i bought it used.
Hahaha. Nice job cleaning the old gasket. Lol. 🤦🏻♂️
Replaced it and now tractor won’t start.
What did you do to fix it? Mine won't crank over anymore
Does anyone here ever mow when its dark enough to actually use the headlights?
Recently, my headlights came in handy when spreading grass seed and fertilizer.
Yes, and one night I was lighting a cigarette and i noticed that my lighter was brighter then my headlights!?!
Always figured it was more for snow removal since it gets dark at 5
Roboto
shaking my head all the videos have new parts i can repair with the same parts without new parts