Fixing A Leaking OHV Valve Cover Oil Leak On Kohler Single Cylinder Lawn Tractor Engine
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- Опубликовано: 15 окт 2024
- Fixing A Leaking OHV Valve Cover Oil Leak On Kohler Single Cylinder Lawn Tractor Engine
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Always check the upper sump bolts when taking the top cover off, they come loose and cause the aluminum case to crack. These engines are the worst engines ever designed.
You are the best on this style of video. Everything is explained in detail from start to complete finish. Closeups ups when needed, everything in focus etc. etc.
I will say that this engine repair is the only one of which I use a torque wrench. Kohler actually tells you that these engines are prone to leak and to keep several of those gaskets in stock. The valve cover is also prone to warping especially if you over tighten. So, the torque specifications are to tighten 65 lbs/in if you are using a previously threaded engine head, and 95 lbs/in if you are using a new head in which you are creating the threads as you install the screws. Thank you for all that you do for us.
I second the "warping" of the valve cover. I ALWAYS check their trueness.
On similar Briggs engines those valve cover bolts only get torqued to around 5 ft-lb.
5 Lb ft = 60 inch pounds.
It's not the space shuttle. Just tighten and go.
Great videos you're posts are always clear and step by step complete and make me not afraid to tackle the jobs. Thanks Dony boy.
Awesome post. I did this fix today on my broken down piece of crap mower and then mowed my whole lawn. Thank you!
Don, you are an asset to YT. Thank you. 👍👍👍
Thanks for your videos I have never worked on engines before after watching your video on head gasket repair I fixed and tractor is running great great videos keep up the great work.
When you replaced the valve cover you tightened the cover correctly, from the center out, you likely do it from habit but it would be good to mention for younger/newer people to the mechanical world.
Good morning !!! Don, " Outstanding " DB73; I learn tricks and short cuts watching repairs like this. I think I would have used a shop vac for those rocks though. Your shop your way... Donyboy 73 foot pounds of torque :-)
When installing steel fasteners in aluminum, I always use coated bolts or put a bit of anti-seize on them to prevent or reduce corrosion, seizing, and galling of the aluminum threads.
Galvanic corrosion of dissimilar metals.
Iron Golem
Thank you for the tip.
Same with rims and lug nuts lol. What a nightmare
Thanks for this video, it helped me a lot! I ended up using a new gasket, which was easier for me.
Rodents storing rocks? what about the owner mowing his gravel driveway?
I laughed out loud that’s funny af
I lived in Arizona most of my life and then moved to the Midwest recently. One day early winter my car is making a horrible screeching sound and horrible vibration when I brake. I genuinely think my tire is about to separate from the hub so I stopped on the side of the highway. Sherrifs deputy pull up behind me and I explain what's wrong. She finds an acorn (or some other nut) wedged in my front passenger caliper. That was wild haha I've never had to deal with animals preparing for winter like that.
Informative video. Hopefully works for me. Only thing different was I had to get a new gasket and loosen bottom muffler cover so I could get bottom screw off. Fingers crossed once silicone is dry no issues.
Like your videos, straight forward, no nonsence.
Awesome video my friend. Easy to follow. I just did the same repair on my Ariens after watching this. Saves hundreds of dollars. God luv ya. Cheers.
I have a MTD Yard Man, last week i noticed its leaking oil, but there is no smell or smoke so I am asking for you help to see where the leak is coming from. Thanks for your help.
That wet dry vacuum would work good on those rocks
I always check the bolts under flywheel especially the 2up front.there known to back out and hit flywheel then crack the block seen lots on that engine
It takes courage to own a Courage 😁
Hi Don thank you so much for all your tips , is it hard to change a crankcase seal on a Briggs and Stratton on a John Deere lawnmowers
not too hard
Great video I I wish u do one on this Kohler engine for engine surging
excellent video. Now I know just what to do. Thanks.
Nice video Dony! I have an early 2000 mtd yard machine with a Briggs & Stratton 16.5 hp OHV with a similar problem oil leak on to exhaust, also afterfires when shutting off. Do you have a video on the Briggs & Stratton valve cover, head gasket R&R?
Thanks.
Thank you, mine is leaking enough to slip the drive belt(25 hp 54 in)you may have saved me some money!(update, had a lose oil filter, nothing was wrong)
Very good video. You speak slowly and I can understand everything. Keep on like that.
READ THIS!!! If you have a Kohler courage engine on your mower, there are 3 common major issues I've found. First, valve cover gasket leak, which is covered in this video. Second, the valve adjustment will get very sloppy over time, causing pushrods to snap. Third, and the most major issue with these engines is the side plate bolts rattling loose. The vibrations of this engine will loosen nearly all the bolts around and near the flywheel. When this happens, the bolts rattle in their holes, ultimately leading to the block starting hairline cracks. If not taken care of. The block will in some cases crack entirely in half. When you're doing the job in this video, take the side plate bolts of the engine off one at a time, apply loctite, and re-torque to spec. Seriously, if you have a Kohler Courage single cylinder 597cc ranging from about 17-21 hp, this job must he done or at least checked. I think on some later models Kohler applied more loctite to the bolts.
Kohler courage is a damn piece of crap. Mine started to make abnormal noises so, I shut it off . I've saw some oil dripping from the sump seal. I took off the bottom pulley and, noticed a nail clipping size (half moon) hole beside the sump seal. Something came apart internally. The engine had 72 hours of use. I called Kohler and, they didn't want to bend the rules, a little since, the warranty was over for 21 days. Not a month or 2 or 3.............21 days !!! Dear Kohler sales reps. I hope you get ass raped by a moose.
In the ten years I have had my 24 horse v twin, never has any thing gone wrong with the Craftsman. I know , these engines are made in China nowadays. I mow a very large area.
Its newer than all my old Kohler engines the valve cover gasket is a easy fix specially when you can buy a gasket instead of making it all my cv models of Kohler engines run and work long as the carburetor bowl is new
My problem with the older cv Kohler engines is the carburetor bowl corroding inside on the bottom and sides of the bowl the white corrosion makes the float stick either open or closed and a brand new carburetor lasts for a few months or to a year on the cv models so i quit using my cv models of Kohler because of that and I've tried better gasoline even the gas treatment stuff the metal bowl still corrodes inside
Excellent video
Cheers mate! Can you give me a hint please why a tecumseh engine leaks oil after is warmed up? In fist 2 minutes everything is ok but after....alot the oil at the breather
nice job. does the gasket maker need to be oil resistant. I think that is the black permatex. at least that's what I needed on my truck valve cover.
I use ultra black permatex
Sometimes you just have to tighten the bolts a little and problem solved.... for a little while 😉
How do you feel about using products like Lucas oil stop leak?
I had an oil leak and then a smoke situation on an older mtd lawn tractor that puzzled me for some time. I wished that it was the valve cover situation and after dealing with drips below the mower and puddles on the lawn tractor engine deck. I found out that the leak was the sump pump engine gasket. The break in the gasket was just enough to allow oil to seep out at operationg temperature and then find its way onto the hot cylinder head and smoke when it was really getting bad. Replacement of the sump gasket fixed it, but the engine had to be removed and opened up. The engine was a tecumseh. Dipstick oil ring was suspect, main bearing seals, valve cover also. Suspect the sump gasket if all else fails.
Good job Don.
Nice fix Donyboy: Do you also check the valve lash on those motors when you have the valve cover off? I find in my shop that the Kohler Courage are far from the best motors. Thanks for the excellent video's.
yes I did, I rarely have to adjust the valves on kohlers
@@donyboy73 Hmm, that's good to know...I'll be checking mine soon on my lawn tractor though. Why isn't valve adjustments as common on the Kohler engines though?
@@donyboy73 Some of the Kohler Commands like my CV15S have hydraulic tappets inside, no lash adjustment needed!
Don I have about 9or10 old push mowers some of them quite running and some I just stopped using they’re al around 15 to 18 years old would they be worth rebuilding?
How do you start it with the ratchet??
I always put bolts in by going counterclockwise until it clicks in, then i tighten a little to make sure i didn't cross thread. And only then do I use a gun.
While you are in there good time to adjust the valves Good job sealing up the leak BTW
At least check them and if out of spec inform the customer and ask if he would like the valves adjusted.
This may be a dumb question, but ya never know if you don't ask.
When checking the oil level on a lawn mower, pusher or rider. Are you supposed to screw the dip stick all the way down tight, then undo it to check it? Or rest the dip stick onto the threads, then remove it to check the level?
I have heard both ways . I screw min in.
I always use a new gasket when doing repairs
Why would you reuse a brittle gasket? You can buy a roll of gasket sheet in different thicknesses and trace out what you need from the old one if you can't get to the mower store. While your cover is off folks, check your valve lash.
But of course. IN all the years I have changed my transmission fluid I have never changed the pan gasket on any car at any time. It is a waste of effort. And time. As though you know more than Donyboy. I can spot a amateur from a distance. Never , never have I had a leak. I know you do not do this. Many do not, however it is nothing new.
@Art Vandelay I am merely agreeing with Dony here and affirming that what he said about what works. Yes I am comfortable around machinery, have like the contributor here. Yes, Many machines. Uncounted. I do not work on them any more, not all of it is as easy work as working on small engines. You should capitalize the first letter of words in each and every sentence.
This guys videos are explained very clearly and concisely. Indeed I have used these Canadian vids. myself for snowthrower maintenance.
Someone suggested on taryl fixes all video that you should remove small amount of cover face by rubbing on flat abrasive surface like doing a cylinder head. He claims cover is bottoming before gasket can seal.
Great Video !!
excellent video, thanks!
how can i repail a hail line crank on my craftsman transaxle? Epoxy?
Another great one thank you buddy.
Thanks for the vid Don. Question: Why re-use the old gasket at all, if using a gasket maker from the tube? As the name implies shouldn’t it form its own gasket? 👍🏼🇨🇦
Repair people found RTV alone wasn't enough to seal the engine side long-term.
999thenewman Ah, I see. Thank you. 👍🏼🇨🇦
It’s a thick cork gasket. You’d have to use a ton of gasket maker. Better to use in conjunction with the cork gasket.
NorthTexasFarming That makes sense. Thank you. 👍🏼🇨🇦
Great job
Smashing job, that should seal fine :-D
The owner needs a cheap jetwash to keep that tractor really nice :-D
good video. Thanks for the tips
Thank You!! 😁😁😁
Very nice video!! 👍👍👍
Thank you! Cheers!
When the valve cover is off why not give the valve clearance a quick check?
Because it's running well and shows no signs that anything is wrong.
Plus time is money. I would have suggested it to him and if he wanted it checked it would get done
@@matthew53690 In one of the other replies he stated he DID check the valves even though it wasn't mentioned in the video.
I think kohler may have hydraulic valves
Excelente se terminó la fuga de aceite y la humareda. Saludos
why not check the valve clearance when the cover is off
Is he hired for that?
Because that engine will blow apart anyway
I have seen on other channels that people cleaning parts use diesel fuel instead of gas because there is little chance of fire.
Hello, I have 1 lawn mower Snapper LT 200 V twin 24HP, and I have a leak, tell me where, it would come and give you a photo
My Kohler pro cv16s leaked some gas out its valve cover because there was no gasket on it and it caught on fire so i put it out and made a gasket
Is there a benefit to using Dirko versus Permatex Ultra Grey?
probably not
Thank you for your prompt response.
Curious as to why you don’t clean the shroud, frame, fuel tank, etc. where oil/dirt buildup is present.
I did pressure wash after repair
Nice of you to cross thread the bottom left valve cover bolt...
That's why you start bolts by hand
7.5nm using same threads 11nm if you are making new threads, over tightening splits the gasket as it's made of Cork
Damn this is the second video that you've done that will fix my tractor...you are saving me some serious $$$$$
What was causing the leak if the old gasket can be reused? Just the sealant?
the gasket gets a little brittle and shrinks, adding sealant and re-torquing the bolts cures it
Where would all those rocks come from to get on top of the engine????
RichE San Diego
rodents
@@donyboy73 Wow... they sure are busy little buggers! :-)
Ah, interesting. I've seen lots of mouse nests and food caching under the covers but never rocks. I wonder why they'd put rocks there.
Good thing it started to leak or those rocks would cause hot spots leading to problems if not failure.
RichE San Diego
Why did you not replace the gasket?
Gr8 video,very helpful
I wait till next day to start. I never reuse the gasket on this engine, and I wait 5 min. on each side for the RTV to dry before I put the gasket on. This is the only way I have had success.
wow never seen so many rocks in an engine
@donyboy73 Dony - i've switched to K100 because of your videos & got some friends to switch also. i have a neighbour who is really smart/handy/mechanical....but says to me for his push-lawnmower that he, " doesn't need fuel stabilizer, i burn 2 gallons at a time & i run it out of gas come fall/winter & i have a plastic gas tank. " To me that is frustrating to hear & he won't take some of my K100 stabilizer for free, just says he has no use for it. *(aside from the video you made) What sort of argument or point of view can i use to convince him he needs to use it?*
(P.S. he has issues with his choke sticking and his push mower is 2-3 years old)
If he is running it out of fuel then he is correct. The fuel stabilizer is useful if you don't run it dry and instead leave the fuel in it. However by running it dry there is no fuel in places that would need to be stabilized.
and check the oil level
No need to loosen the bolts. That wonderful piece of engineering WILL do it on its own.
What fixed the leak?
on that engine I clean surfaces w solvent then new gasket then I use the shellac sealer on gasket an then locktite on bolts an torque , had way to many coming back for same problem
Do you have one on the Kawasaki engine?
I haven't seen a kohler that didn't leak oil..valve cover gasket oil drain plug loose the quick type..they all leak unless it's out of oil..
mine doesnt
The gasket will always leak again. Do not use the gasket. Use a gasket maker called THE RIGHT STUFF. Follow the directions. It will never leak again.
So Donny, after you removed the rocks and returned the tractor, did the owner thank you for getting rid of the rattle under the hood, lol?
Strange there would be so many rocks, I would check the blades on that one. lol.
And adjust valve Lash ? You are There
valve lash was perfect but yes a good time to do that
worth mentioning in the vidio
I hate it when the valve cover on the Kroler leaks and gets oil on the Mufkin. :-)
LOL but the carbastrator stays clean
No need to check the battree or the government!
Why not spend $8 and get a new gasket?
Make a vid to show us how to do this shit
Because it will leak, even with a new gasket. It’s a design flaw.
Those extra bolts aren't doing a whole lot obviously.
Torque specs please.
CRAZY, a smart designer could of made a few minor changes and you would of NOT had to remove the recoil cover
Why not replace the gasket with a newline? Make sense no?
Man that's a lot of rocks! Sure your not mowing the rock garden instead of the lawn? Lol
bonjour je suis nouveau
Why not just replace the gasket as well..
The problem is, it’s a Kohler engine not a Kawasaki...🤘🏾
Commands are the best mower engine I've ever seen, but I hate the Courage.
Did you at least check the valve lash? :(
YES
@@donyboy73 ok. No need to shout.
I was expecting acorns or birdseed.
Had a fire from this leak ruined a engine
never us gas please the fumes travel ..an can ignite ..lot have died from using it to clean ..
life is tough
@@rk22cc i got burnt at 9 going in a lawn shed with gas cans to smoke well it went on fire ....not fun missing 3rd grade ok
Reusing a gasket yikes. 😬
Ok how to stop rodent from feasting on wires
No wonder its leaking oil its truly the worst motor kohler could of ever made. I even think the courage vtwins are better than a courage single. However my opinion as far as a vtwin kohler nothing will beat a command vtwin.
Dony, I'm curious to see how long that repair will last. It is a terrible design by Kohler and they put out a Service Bulletin #325 that suggest a revised valve cover and using just RTV silicone with no gasket.
I've done many this way with no leaks afterwards
It seems Briggs went the same route and started using silicon sealer instead of valve cover gaskets.
The way he did the repair will last for years. The reason the gasket leaks at the bottom is because it's right above the muffler. It's made of cork and gets baked, brittle and shrinks.
@@gregh.7977 Well I hope so, but he reused the gasket at 5:15 and it has a split at the bottom bolt hole where the leak is.