In my experience its camshaft end play.
Kohler Knock Anyone?
Posted April 03, 2016 - 09:04 PM
- Trav1s said thank you
Posted April 09, 2016 - 11:21 PM
Posted April 10, 2016 - 12:49 AM
I have had 1 Kohler that knocked on me, I was headed to a neighbor;s 1/2 way aroun the block to mow, stated knocking about 1/2 way there, by the time I turned around and before I got home, it had blown the rod, I was less than 500' from home when it started knocking and I turned around, I got within 100' of my driveway when it died. this was on a Deere 214. I never did tear into it, sold the machine just like that.
I have rebuilt a few Kohlers, none of which had "blown up" but it seems that every one of them needed to be both bored and to have the crank cut down.
Edited by dodge trucker, April 10, 2016 - 12:50 AM.
Posted April 11, 2016 - 06:04 AM
My only experience with a knocking Kohler was on my 416-8 with a Kohler Magnum 16. The engine knocked when I bought the tractor but I noticed that when I engaged the pto the knock disappeared. When you engage the pto on a wheel horse the crankshaft is side loaded hmmmm. Checked the crank end play with a dial indicator and it showed .045 inches which is way beyond the factory spec of .003-.020.
Pulled the flywheel and bearing plate and removed the shim stack and measured them with a micrometer and removed enough to get it back to specs, in this case .005.
Just guessing that a previous owner had the engine apart and added all of the shims in the gasket set to the bearing plate and put everything back together. The crankshaft drifting back and forth also affects the cam and balance gears. Lots of metal clanging around.
- limebuzz, Bruce Dorsi and Trav1s have said thanks
Posted April 12, 2016 - 10:38 AM
- MolonLabe said thank you
Posted April 15, 2016 - 06:25 AM
After building the hotrod K301, I'd check cam and crank endplay.
Posted April 21, 2016 - 08:59 PM
Posted April 22, 2016 - 03:16 PM
Posted June 07, 2016 - 08:18 PM
- limebuzz said thank you