Troubleshooting: Bad Camshaft Kohler Command

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In "Unsolved Mower Mysteries", Taryl goes over what to do when your Krohler Command engine runs too rich like it does in this here video. It won't suck in air through the carbatrator like it should and runs rough. After scratching his head for minutes, hours, days... Taryl finally cracked the code with what was wrong with this Krohler Command V-Twin engine.
Prior to and after the lesson, new hit TV show "Unsolved Mower Mysteries" is sweeping the nation! Check out this episode's full creepy story here and be sure to stick around til the end for the update. Surely another classic, yet informative, how-to video from your pals at Grass Rats Garage!
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Опубликовано:

5 сен 2020

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Комментарии : 377

@TarylFixesAll 3 года назад

Support the channel! Grab yourself a Taryl T-Shirt, Coffee Mug, Tools & More! Shipping Worldwide Daily from the Taryl Apparel online store! www.TARYLFIXESALL.com

@thomasjehnkins1986 2 года назад

Gotta hand it to you man!... you put a LOT of effort into these videos AND you go the extra mile for your customer!

@kennethfanelli5496 Год назад

The music is my favorite

@oliverman-ff5gu 3 года назад

This guy needs a Netflix show

@FarmallForever 3 года назад

MY FAVORITE SHOW! UNSOLVED MOWER MYSTERIES!

@jaybee2344 3 года назад

Can you imagine Robert Stack making a Cameo appearance!

@charlesbostick2184 3 года назад

@@maj8301 Aa!!

@gratzbuck9882 3 года назад

This was one of your most enjoyable videos. As a retired instrument mechanic and electrical foremen, this was a prime example of my philosophy, no matter how aggravating "the tough ones are the ones you learn from".

@carlmiller1034 3 года назад

Excellent, in-depth walk-thru of the issue with the engine. That seems like a few hours (at least) spent trouble shooting. But you fixed it...because Taryl Fixes All!!!! Great job. Now, time to celebrate your success and purchase some Taryl apparel. Thanks again!

@davidbulich1254 3 года назад

The manufacturer should just put on stronger starters instead of a troublesome compression release

@SAGERODS250REM 3 года назад

Hi Taryl I just subbed to your channel Utube just recommended you out of the blue. I have been watching several of your videos and love your zanny comedy and your extensive knowledge and know you are the real deal, there is so much garbage on utube but your channel is totally genuine. I used to own a small engine repair shop in northwestern Saskatchewan, Canada in the 1980s I was a large Stihl dealer also a Suzuki marine, BCS and Homelite Jacobson, and Kawasaki small engines. In the later years I worked for a full line Honda dealership repairing motorcycles, Honda automobiles marine and small engines. I then went to work for a provincial run tech school as a instructor in the OPET program, Outdoor Powered Equipment and then to a medium sized rental company repairing everthing the from large gen sets to Genie and Skyjacks and power trowels , jumping jacks to chainsaws and cutquicks. I then retired in my mid sixties and sold off my tools. Cheers from north west Canada.

@trevor5290 3 года назад

Perfect timing for my morning coffee :) You guys are the best!!

@randyabraham1058 2 года назад

You crack me up taryl. You go to a lot of trouble to keep us entertained. Love your videos. Keep up the good work!

@haugstule 3 года назад

thank you, another solution to an issue i haven't run across yet, now thanks to you Taryl and Elk i won't have to spend two days scratching my coconut, Thank you! :)

@scrotiemcboogerballs1981 3 года назад

I'm so glad I found your channel ☺️ so funny and informative you guys are awesome thank you for everything God bless you and your families

@TripGibson 2 года назад

Taryl good investigative work. I believe I have the same mower with the same problem right now. You grass rats are the best !

@DeruUeruddo 3 года назад

Just saw this the other week. After a while of scratching my head as to why my tecumseh horizontal 10hp was popping and surging around. Turns out compression release was sticking. Thanks Grass Rats

@ralphwatten2426 3 года назад

I'd like to see if that little piece of crap from the reed valve is in the compressione release. Thank God for Sunday Taryl mysteries.

@dennissytsma3561 3 года назад

Outstanding analysis. I have this engine on my year 2003 Craftsman GT5000 lawn tractor.

@enterusername4209 3 года назад

You know, I had a case bolt come loose on my MS280 Stihl and it broke some fins on my flywheel. $80 later for a new flywheel and it cuts great. I did remove those bolts and gave them a shot of lock tight. Thanks for your videos.

@fixingstufftv453 3 года назад

LOL, another great video. Got to love those engineers and number crunching nerds. Someone saved a few pennies by using a low torque starter motor and an over complicated compression release system.

@JOEZEP54 Год назад

This would have me going for days. Thank you for posting this. Stay well, Joe Z

@dannymatthews855 6 месяцев назад

Excellent video, thank you. I have the same engine running rough and blowing black smoke. I'll check to see if the carb is sucking air...

@mikeroutledge6929 3 года назад

Brilliant, love from the UK

@brucel.6078 3 года назад

Excellent video!!!!! Never seen that before!!!! You guys rock!! 🍺🍺

@scooterwoodley195 3 года назад

Taryl is an American treasure. Podunk’s finest

@fair2middlin 3 года назад

You see there Scooter, he thinks of the simplest things first

@Seansgarage711 3 года назад

As always love your videos!!!

@phillipparker8947 Год назад

You da man Taryl. Another great video, brought to you by,"Grass Rats Garage" Whooooooooooooo.

@tommybounds3220 3 года назад

AWESOME in depth video thank you very much. Knoxville Tennessee.

@davidlaws1438 Месяц назад

Hey K town, Jonesborough TN. Family in Knoxville, my mom was from there😊

@edhartman2860 3 года назад

I have to admit, when I'm mowing on my Cub Cadet, I find myself yelling "Taryl Dactyl Here"!!

@benjaminstockton3917 3 года назад

Good job Taryl thanks for sharing

@jo6520 3 года назад

Great fix Teral! Saved that customer alot of money

@fair2middlin 3 года назад

The guy paid for the processes that did not work also --up until success

@user-zu7ws6hp6l 3 месяца назад

Love these guys .😅 Hats off to taryl fixes channel

@MrGoosePit 3 года назад

Roscoe Jenkins! 24:13 That mug shot is hilarious!

@fair2middlin 3 года назад

Yep almost seven feet tall

@bennieshetler8435 3 года назад

Good video. ..future videos would be great to see how you reseal the crankcase and how long you wait until you fire it up!!! I guess it would depend on which product you use

@michaelslivensky8741 3 года назад

Good video, Thanks for including Elk Skins. We need more videos with him.

@michaelslivensky8741 3 года назад

@@gfriedman99 that's how I was watching it. Lol. Elk Skins is my damn hero.

@mustie1 3 года назад

dident see that coming,

@artemdevo3161 3 года назад

They said it was running rich, but I think they just mean it was making that distinctive “banging” noise like it was running rich. That sometimes happens if a valve is too tight so it doesn’t close, or in this case where the compression release was stuck. Since he could cover the carburetor with essentially no vacuum forming, I’m guessing the release is on the intake valve, so all the compression was pushing back through the intake manifold and the net air flow through the carb was essentially 0.

@sewing1243 3 года назад

@@artemdevo3161 I believe the compression release is always on the exhaust valve(s) because the engineers wouldn't design an engine with air/fuel mixture/exhaust gasses being blown back out the intake/carburetor. The loss of suction on the intake is probably because air is being drawn back into the cylinders through the exhaust pipe/muffler.

@artemdevo3161 3 года назад

@@sewing1243 That isn't always true, the newer briggs single cylinder lawn tractor engines have the compression release on the intake and I'm sure others do too. Normally the blow back through the carb isn't a problem when starting because the release closes so quickly, but in this case it isn't closing. Most older engines had the release on the exhaust, but some newer ones are starting to be on the intake.

@jose83771 3 года назад

It seems more and more with kohler engines I don't see it coming lol,

@ghostfox3560 3 года назад

Or going?

@kerrygleeson4409 3 года назад

Fantastic diagnosis

@falloutguy8878 3 года назад

Nice job good investigation into the problem

@fullmoonlawns Год назад

This was a cool idea for a skit. Great Video!

@james35546 7 месяцев назад

I love your skits!

@allenchancery2304 3 года назад

Another good performance thanks guys

@ededmund5685 3 года назад

WOW I'm a little late ,, but this is ,,,,, YOUR BEST VIDEO SO FAR ....Thx Ed Loretto Ontario Canada

@wickerman9569 3 года назад

Thanks for the dinner. How about a video on adding electric start to a pull start engine..

@scooterwoodley195 3 года назад

1200Custom 1974 Agreed... that would be a good one.

@fair2middlin 3 года назад

on most builds this will be unavailable/impossible

@CHIBA280CRV 3 года назад

Don’t have Facebook, hate social media..but love RU-vid and watching your informative and funny ass show..and the unsolved mystery is fantastic. Lmao. Oh yeah and give shop rag a job..

@CompetentSalesUSA 3 года назад

Excellent! Unsolved mower mystery!

@williamgiampa4783 3 года назад

THANKS FOR THE INFORMATION!!!

@davekingsley966 3 года назад

Same thing happened to my Craftsman/ Briggs, broken compression release on the camshaft. Figured it out after I replaced the battery and starter and 2 starter gears.

@dannylister558 3 года назад

Thats some fine detective work..very interesting video..i have a mystery of my own..to be shared at a later date..

@Nunya_Bidnez 3 года назад

Great work Grass Rat King.

@mdunbar008 3 года назад

I have a Command that is running really rough and rich right now. Was going to start with the carb, going to check the airflow first now.

@KYKAYAKER274ey1 3 года назад

Crap love the channel when u went woo I did too forgot I had guests at my house freaked them out now there binge watching your channel awesome

@mastertech7104 3 года назад

Hey Taryl, check the oil filter for pieces of the reed valve. another great video.

@pennyan2057 3 года назад

exactly what I was thinking,however he did say that the oil pump has a screen on it, I would still tear the filter pleats apart and look for filings.

@tatersalad2067 3 года назад

This would be the same thing that would happen at my shop. Having to pull that engine three freaking times......

@bigdirtygaming6429 3 года назад

It's like the bullshit never ends. Lol

@bw1841 3 года назад

Taryl's so experienced he expects his gut to tell him the diagnosis. But an amateur needs basic checks like cranking compression and leakdown test. Those would have helped show low running compression but good cylinder sealing at top dead, which should have hinted at the bad compression release.

@backroadsliving7740 3 года назад

this guy definetaly earned my sub

@axehound3718 3 года назад

Thanks a million!!

@FNGstationtwentyeigh 3 года назад

I'm thinking that the missing sock that eludes us between washer and dryer is somehow related to this crime but merely speculation on my behalf...promoted by one cold foot .hmmm

@roys1247 3 года назад

New one on me compression relief issue on a V-twin would have had me scratching my head too. on the other hand I've seen plenty single intek engines with the counter weight in the sump.

@moondogdieselworks3883 3 года назад

Most of the reed may have come out with the oil, being black it would be hard to catch. I’ve never seen that happen before and would have stumped me too. Love your channel.

@57Banjoman 3 года назад

Thanks Taryl! I needed a laugh!

@dans9228 3 года назад

GREAT VIDEO! THANKS!

@mikerichardson6496 2 года назад

Finally got on your channel.Thanks for the viedo's

@keithmiller7110 2 года назад

Taryl I have a shop like you I had one I’ll share with you we had a cc gtx2100 with the horizontal version command and it ran very similar but lean and hot, after 5 minutes the exhaust would be glowing orange we changed everything you could think of. We then found the horizontal version commands had a pressed on cam gear on the crankshaft well apparently they are known to occasionally slip causing the cam timing to go off. Midwest super cub sells a kit to correct this problem otherwise Kohler wants you to replace the entire crankshaft. Just figured I’d share that one with you since it really was making us scratch our heads for a wile.

@jordansdad1221 3 года назад

I'm glad Taryl did something with the chainsaw, even though we'll probably never find out what really happened to it. Good job on the cam shaft repair.

@neilphilip2320 2 года назад

Would a test using a vacuum gauge have shown a problem in the engine breathing? Brilliant vids - I'm in jolly'ol and have had much fun and learned loads from your stuff...

@argentux8919 3 года назад

Love the show!

@tonyfremont 3 года назад

Can't wait for the update where they find the reed valve piece between a piston skirt and cylinder wall. It's in there somewhere. Might be sandwiched in the compression relief though.

@lewiemcneely9143 3 года назад

A pal that runs a mower shop has had TWO of these with bad LOBES! One was a Scrub Cadet with 80 hours on it. Ran rough when NEW. Might be like GM with the bad batch of cams years ago.

@moparmadman1134 Год назад

Great video love your sense of humour. What do think would cause a Kohler command to lockup bought it used with crack in oil pan have welded up but now it ain’t turning over

@stevenbeauchamp1320 Год назад

Taryl always makes me laugh but when elk skin laughs at him that makes me laugh more. Love it when he says Taryls line....fire it up and Taryl tells him him to shut up. You guys are hilarious!!!

@DK85 3 года назад

That pink suit coat is GOLD! Ya little twerp!

@sinnerface1 Год назад

Very good video! I subscribed!

@kevinleee3408 Год назад

Lol i love the voices you do. Where's the compression release? o there it is. 😂😂😂😂😂😂😂😂😂

@nickkowal9999 3 года назад

Taryl, I have a Hustler Raptor SD with the Kohler kt740. I am having issues with the engine running rich too. I did a full service on the mower engine. oil, filter, plugs, and swapped out the carb. The issues I was having is the mower suddenly lost power while mowing. Lots of black smoke. This all happened while mowing. I pulled the valve covers, and found one of the rocker arms broken. I replaced the rocker arm, and adjusted the valves. They were all loose. After fixing the rocker arm, the mower starts almost instantly, but still has no power and spits out tons of black smoke while at full speed. Idle is fine. you can visibly see all the fuel being thrown into the carb causing it to spit and sputter. After doing the towel test. the mower slows down, but does not stall. I am at a loss and don't want to tear the mower apart unless i have to. any ideas. Thanks. All the videos are so helpful and awesome. Keep up the good work.

@andysukosd8177 3 года назад

That was a great video, thank you

@jensenwilliam5434 3 года назад

Thank you!

@Wayoutthere 3 года назад

Dang, 3 tries, so many hours. I would have set the damn thing on FIRE haha.

@chevyboybrownjb83 3 года назад

I think that it's behind that weight on the camshaft disassemble and look you've got me curious my friend

@ghostfox3560 3 года назад

Nice throw back to my childhood sunday night TV program. And that little oil sucker. You got a link to that? That looks to be a very handy tool to have handy.

@danielhowiesr.2593 3 года назад

I think I saw Roscoe here in Charlotte standing on a corner with a "Will Work for Food" sign in his hands. Looks just like him!

@len4338 3 года назад

Trying to understand all that a stuck compression release would effect. Loss of compression for sure. Could it cause backfire ? Also, would it run LIKE it was rich or would it really be running rich ?? Really good mystery video, you have solved much of the small engine mystery for me Taryl. I have fixed and tuned up all of my own machines thanks to you. Love your channel.

@shanekilgore7273 3 года назад

It'll usually run with the release stuck. It'll just have no power. It lowers the compression ratio drastically but it has to have enough compression to fire and run at startup.

@ihus9950 3 года назад

Thanks Taryl 👍

@donnieharrelson1712 3 года назад

DAM SAM..you are king of U tube

@rickeyjohnson4491 3 года назад

Great video as all ways.

@brianprice4630 Месяц назад

I had one like that so I grabbed the governor and held it wide open until it unstuck gave it a oil change and has been running good without tearing it apart

@arngreencare8955 3 года назад

Seen similar symptoms on an engine once. Turned out dirt daubers made a nest in the mufkin and had it partially clogged. Only difference innsymptomsnis it would idle fine...

@Brian-cr6rb Год назад

Absolutely love the parody!

@binnydinney9739 3 года назад

Well that’s weird, those command v twins in my experience are some of the best engines. I always see them with 2000+ hours of use in a commercial setting and they run great. I guess it depends on how much maintenance they get. I probably would have been working on that for days to find that issue. I’m going to start inspecting all the reed valves on the command units I work on. I think I’m going to start stocking those reed valves and on any of the machines with over say 500 hours, I’m going to recommend the customer change the reed valves. Thanks taryl.

@fair2middlin 3 года назад

There's your Dinney

@larrykluckoutdoors8227 3 года назад

Great video

@DAS-Videos 3 года назад

I don't know why krohler adds so much complexity into something that isn't even needed.

@jason-ge5nr 3 года назад

Reckon you earned your money on that one. Or lost your shirt. And there's your dinner (off the dollar menu). I appreciate the diagnostics and sharing.

@ronwhite6719 3 года назад

I like that "Stihl an unsolved mower mystery" great video guys! When is the next follow up show?

@fair2middlin 3 года назад

Keeping up with the Mowdashians

@gordbaker896 3 года назад

At 22:35 there is a lightweight casting that is supported by the Crankshaft and has weights hanging from it. What exactly does it do? Part of Dynamic Balancing?

@DavidSmith-fr1uz Год назад

I am just wondering if a little tiny piece of a that reed is semi lodged under that compression release somewhere.

@PatOne09 3 года назад

Just curious, does this motor have hydraulic lifters and if so did you replace them too? Thanks for all your videos. You are the Khan Academy of small engine repair. Keep up the great work!

@bobbysoto7328 Год назад

Lol....you guys are amazing !!!!

@dkeith45 3 года назад

I recently bought a non running GT5000 with one of these engines. After seeing so many of Taryl's videos on the many and various problems with the Kohler Command V twin, I think I'm going to just replace the engine with a good old Kohler Command single cylinder engine, even though it's only a 17 hp.

@bw1841 3 года назад

Yeah but they CAN have simple problems that are easy to fix. My command pro 25 from the 90's on an Exmark has 1700hrs, and has only had a blown head gasket. It is so strong i didnt realize the head gasket for a year, then a mouse chewed the coil wire and made that cylinder stop contributing what little power it was putting out. Then it would run on one but die when i switched on the blades.

@dkeith45 3 года назад

@@bw1841 I got this one for $250 a couple months ago. It's in excellent condition, but for its engine problem. It's the geared model, not a hydrostat. Previous owner said it broke down, he took it to a repair shop, who said it had a blown head gasket. So they put new ones on. THen those blew also. So he was done messing with it. My original intent was to see if I could fix the 25hp, but after watching some of Taryls videos and others on the MANY problems with these Kohler Twins, I'm not sure I want to even try. Which is why I figure I'll put the 17 in, to get it out of my shop, then toy with the 25 later. And who knows, it might work fine with the 17 single cylinder Kohler Command. I have another Craftsman, a LT1000 that had a 17hp Intek that threw its compression release. While waiting for the new parts to come in, I put in an old 11 hp B&S flathead engine and it ran and mowed fine with it, though it could not power through high grass as well as the original 17 could.

@veb6814 3 года назад

Best videos ever!!

@erikj.2066 3 года назад

As a another possible cheap fix (in the case of a used replacement not being available) I wonder if the malfunctioning compression release could be removed, or weld the fly weight to the running position on the original cam?