[AT] Kohler engine update - still having trouble

rlgoss at twc.com rlgoss at twc.com
Tue Jul 28 15:52:55 PDT 2015


Blown diaphragm in the fuel pump.  It sets on top of one of the rocker arms.


Larry
--- Mike <meulenms at gmx.com> wrote: 
> Several days ago, while mowing with my Simplicity Sovereign, Kohler 
> CH18S) I completely blew out the front oil seal. Today, I replaced the 
> seal, cleaned the carb, and put the crankcase vent tube back where it 
> belongs. I figured since the tube had been exposed that I would change 
> the oil and filter as well. When I drained the oil, I noticed it was 
> very thin,  so I stuck a finger in the stream, and sure enough it was 
> raw fuel. I put everything back together,and it started right up. I made 
> two passes around the yard, and it was smoking so I check and it was 
> already pushing oil past the seal. For some reason I am creating too 
> much crankcase pressure. I pulled the crankcase vent tube and check for 
> any obstructions, I found none. Any ideas what to check for? If I keep 
> running it, it will just blow another seal. Thanks in advance.
> 
> Mike M
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