what causes a kohler push rod to bend
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I accept a Ch 25 on a Exmark mower that started running on one cylinder I idea information technology may exist the coil then I checked it out it was good. I removed the valve cover and establish a bent push rod on the intake valve.
I removed the push rod and checked the valve move it was costless I removed the lifter and checked information technology also seems good. I replaced the aptitude rod with some other one I had and reassembled the valve train.
I started the motor with out the valve embrace on and it started running on both cylinders. When I started to rev it up a footling the intake aptitude another rod. Now I'm back to the beginning and accept no idea why it bent in the first place. If any one has any ideas please let me know
Thanks Joe
J & Yard Thou & Sport, and used parts emporium.
Abode of Mowjoe racing
Former President of the Barry County Grass Clippers
2010 Sportsman Points Winner West/ Grass Clippers
2011 Mod-x Points Winner W/ Grass Clippers
#55 JD 111 GPK
#05 AYP Gp
#67 Snapper Modern-10/CP
When the green flag drops the Bull stops!
Check the valve guide. May have moved upward similar the Inteks practise.
Glenn VanEpps
#14M
2013 USLMRA FXT 2nd place
2013 PSSLMRA FXT Champion
2012 US Open up Points Champion FXT Open up Twin
2012 MILMRA BP Points Champion
2012 MILMRA FXT Points Champion
What did you set your valve lash to after putting the new push rod in?
Zach Burwell
#555 of Triple Nickel Racing
Wanna know a quick way to lose 8 pounds?!
Checked the valve guide it's tight. At that place is no valve lash it has a hydraulic lifters. It has to exist binding somehow. Has anyone ever seen the rocker arm wear out and cause binding that is the just affair I tin run across that looks like information technology has wear on it.
J & K Yard & Sport, and used parts emporium.
Domicile of Mowjoe racing
Old President of the Barry County Grass Clippers
2010 Sportsman Points Winner W/ Grass Clippers
2011 Mod-10 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!
You peradventure take a lifter problem. The Kohler lifters can get gummy, almost of the fourth dimension it is from the type of oil used. I recommend using the kohler 10w30 oil. It has the additive 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 need to change out the lifters.
Chuck Miller
Nosotros had a Kohler at the shop, and it aptitude push rods.
they were pumped up, and we had to turn the motor past hand,
til you had tiptop dead center, let it sit overnight, and then practice the other
cylinder the aforementioned. Fixed the bending pushrods.
Marc Baker
ARC Dealer
Marc from ARC.... "Billet Billet"
Powered by a Full Bug E.C. 20HP Vanguard!!!!
We had a Kohler at the store, and it aptitude push rods.
they were pumped upward, and we had to turn the motor by manus,
til you had top dead center, let it sit down overnight, then practice the other
cylinder the same. Fixed the bending pushrods.
So what your saying is the lifter can pump upward to the betoken of bottoming the bound and cause the bending of the rod?
I picked upward new lifters rods and rockers today I promise it works.
I've worked on these engines since they came out and simply when y'all think you accept them figured out you lot see something new.
I called the customer he did utilize different oil on his last oil change he said it was 20w40 I think we may have a reason why it did what information technology did
I'll let you know what happens tomorrow
J & M Yard & Sport, and used parts emporium.
Home of Mowjoe racing
One-time President of the Barry County Grass Clippers
2010 Sportsman Points Winner Westward/ Grass Clippers
2011 Modernistic-ten Points Winner W/ Grass Clippers
#55 JD 111 GPK
#05 AYP Gp
#67 Snapper Mod-ten/CP
When the greenish flag drops the Bull stops!
And then what your saying is the lifter can pump up to the point of bottoming the spring and cause the angle of the rod?
The piston was tagging the valve, because there was not enough clearance. .....
because of the pumped up lifter. When we permit the lifters settle overnight, information technology
disrepair correct off, and purred like a kitten.
Marc Baker
ARC Dealer
Marc from ARC.... "Barracks Billet"
Powered by a Total Issues Eastward.C. 20HP Vanguard!!!!
The piston was tagging the valve, because there was not plenty clearance. .....
because of the pumped up lifter. When we allow the lifters settle overnight, it
busted 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 just 1 bargain,
only this is what we were instructed to do, and it worked.
Marc Baker
ARC Dealer
Marc from ARC.... "Billet Billet"
Powered past a Full Issues E.C. 20HP Vanguard!!!!
I haven't worked internally on many Kohlers, this was only one deal,
but this is what we were instructed to practise, and it worked.
Cheers Marc
Tim Johnson
I have no signs of the valve striking the piston. The piston has a nice picture of carbon and the valve likewise shows no signs of hitting the the piston.
I still need to put it together tonight and run into what happens
J & K Yard & Sport, and used parts emporium.
Home of Mowjoe racing
Quondam President of the Barry County Grass Clippers
2010 Sportsman Points Winner Westward/ Grass Clippers
2011 Mod-ten Points Winner West/ Grass Clippers
#55 JD 111 GPK
#05 AYP Gp
#67 Snapper Modern-x/CP
When the green flag drops the Bull stops!
We have had several issues with the hyd lifters over the years the control 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 audio platitude' but using the Kohler 10w30 spec oil is what we take had the best results with making happy lifters.
gtpuller, the singles use the same lifter, for functioning 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 changed the oil customer used it the balance of the flavor with no bug. Thanks for the replies
Joe
J & K Yard & Sport, and used parts emporium.
Home of Mowjoe racing
One-time President of the Barry County Grass Clippers
2010 Sportsman Points Winner Due west/ Grass Clippers
2011 Mod-10 Points Winner W/ Grass Clippers
#55 JD 111 GPK
#05 AYP Gp
#67 Snapper Modernistic-x/CP
When the green flag drops the Balderdash stops!
loureirograsintud.blogspot.com
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