Originally Posted by piston slapper
Question #15...Kohler CV25 hp
Condition...Doing a routine head gasket replacement...sent the heads to the local machine shop for resurfacing...
Installed the heads..replacing the gaskets and lifters..now...the engine tries to start..and will start with starting fluid..but runs like junk...compression is now only 90 psi instead of 180 psi..
Name That Failure..
They took too much off the heads, and some dummy forgot to shim the rockers, thereby allowing the lifters to keep the valves ever so slightly ajar.