How Do You Know if Kohler Has Bent Valve
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I have a Ch 25 on a Exmark mower that started running on i cylinder I idea information technology may be the coil so I checked it out it was adept. I removed the valve embrace and found a bent push button rod on the intake valve.
I removed the push button rod and checked the valve motility information technology was gratis I removed the lifter and checked it also seems good. I replaced the aptitude rod with another 1 I had and reassembled the valve train.
I started the motor with out the valve cover on and it started running on both cylinders. When I started to rev it upwardly a little the intake bent another rod. Now I'm dorsum to the beginning and have no idea why it bent in the first place. If any one has any ideas please allow me know
Thanks Joe
J & Grand Yard & Sport, and used parts emporium.
Home of Mowjoe racing
Former President of the Barry County Grass Clippers
2010 Sportsman Points Winner Due west/ Grass Clippers
2011 Modern-x Points Winner W/ Grass Clippers
#55 JD 111 GPK
#05 AYP Gp
#67 Snapper Mod-x/CP
When the green flag drops the Bull stops!
Check the valve guide. May have moved upwardly like the Inteks do.
Glenn VanEpps
#14M
2013 USLMRA FXT 2d place
2013 PSSLMRA FXT Champion
2012 The states Open Points Champion FXT Open Twin
2012 MILMRA BP Points Champion
2012 MILMRA FXT Points Champion
What did yous set your valve lash to after putting the new button rod in?
Zach Burwell
#555 of Triple Nickel Racing
Wanna know a quick way to lose 8 pounds?!
Checked the valve guide it'due south tight. There is no valve lash it has a hydraulic lifters. It has to exist bounden somehow. Has anyone ever seen the rocker arm wear out and cause binding that is the only thing I can encounter that looks like it has article of clothing on it.
J & Grand Thousand & Sport, and used parts emporium.
Dwelling house of Mowjoe racing
Erstwhile President of the Barry Canton Grass Clippers
2010 Sportsman Points Winner Due west/ Grass Clippers
2011 Modernistic-x Points Winner W/ Grass Clippers
#55 JD 111 GPK
#05 AYP Gp
#67 Snapper Mod-x/CP
When the green flag drops the Bull stops!
You perchance have a lifter trouble. The Kohler lifters can become sticky, nigh of the time it is from the type of oil used. I recommend using the kohler 10w30 oil. It has the condiment package designed for the aircooled engine temps and makes the lifters much happier. If the oil does not take care of it you will probably demand to change out the lifters.
Chuck Miller
We had a Kohler at the store, and information technology bent push rods.
they were pumped up, and nosotros had to turn the motor past manus,
til y'all had acme dead eye, allow it sit down overnight, then do the other
cylinder the same. Fixed the bending pushrods.
Marc Baker
ARC Dealer
Marc from ARC.... "Barracks Billet"
Powered by a Full Issues E.C. 20HP Vanguard!!!!
Nosotros had a Kohler at the shop, and information technology bent push rods.
they were pumped upwardly, and we had to turn the motor by paw,
til you lot had elevation dead center, let it sit down overnight, then do the other
cylinder the same. Stock-still the bending pushrods.
Then what your saying is the lifter can pump up to the point of bottoming the jump and cause the angle of the rod?
I picked upwardly new lifters rods and rockers today I hope it works.
I've worked on these engines since they came out and just when you think you lot have them figured out you lot encounter something new.
I called the customer he did use unlike oil on his last oil change he said it was 20w40 I think nosotros may have a reason why it did what it did
I'll let you know what happens tomorrow
J & Chiliad Yard & Sport, and used parts emporium.
Dwelling house of Mowjoe racing
Former President of the Barry County Grass Clippers
2010 Sportsman Points Winner W/ Grass Clippers
2011 Mod-x Points Winner W/ Grass Clippers
#55 JD 111 GPK
#05 AYP Gp
#67 Snapper Modernistic-ten/CP
When the green flag drops the Bull stops!
Then what your saying is the lifter can pump up to the signal of bottoming the spring and cause the bending of the rod?
The piston was tagging the valve, considering there was not enough clearance. .....
because of the pumped up lifter. When we permit the lifters settle overnight, it
busted right off, and purred like a kitten.
Marc Baker
ARC Dealer
Marc from ARC.... "Billet Billet"
Powered by a Total Problems Eastward.C. 20HP Vanguard!!!!
The piston was tagging the valve, considering there was not enough clearance. .....
because of the pumped up lifter. When we permit the lifters settle overnight, information technology
disrepair right off, and purred like a kitten.
Marc, is this a common problem in the twins and if so does it translate to a problem with the single?
Thanks
Tim Johnson
Tim Johnson
I haven't worked internally on many Kohlers, this was merely one deal,
just this is what we were instructed to do, and it worked.
Marc Baker
ARC Dealer
Marc from ARC.... "Billet Billet"
Powered by a Full Bug E.C. 20HP Vanguard!!!!
I haven't worked internally on many Kohlers, this was just one bargain,
but this is what we were instructed to do, and information technology worked.
Thanks Marc
Tim Johnson
I accept no signs of the valve striking the piston. The piston has a nice film of carbon and the valve too shows no signs of hitting the the piston.
I still need to put it together tonight and see what happens
J & K M & Sport, and used parts emporium.
Domicile of Mowjoe racing
Former President of the Barry Canton Grass Clippers
2010 Sportsman Points Winner W/ Grass Clippers
2011 Mod-x Points Winner W/ Grass Clippers
#55 JD 111 GPK
#05 AYP Gp
#67 Snapper Mod-10/CP
When the green flag drops the Balderdash stops!
Nosotros have had several problems with the hyd lifters over the years the command has been produced. From starting them up out of the crate to having 1000 or more hrs on them. As Marc says they are pumped up or stuck causing your problem This might sound cliche' but using the Kohler 10w30 spec oil is what we accept had the best results with making happy lifters.
gtpuller, the singles use the same lifter, for performance apps most builders swap them out for solids with reground or billet cam
Chuck Miller
I replaced the lifters and push rods with new ones and inverse the oil customer used it the rest of the season with no problems. Cheers for the replies
Joe
J & K Yard & Sport, and used parts emporium.
Home of Mowjoe racing
Former President of the Barry County Grass Clippers
2010 Sportsman Points Winner W/ Grass Clippers
2011 Modernistic-x Points Winner Due west/ Grass Clippers
#55 JD 111 GPK
#05 AYP Gp
#67 Snapper Mod-ten/CP
When the green flag drops the Bull stops!
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