Kohler Command Pro Single Cylinder Horizontal Lifter issue

[Tiger Small Engine]

I think your thought would be acceptable. For the most accuracy of engine health would probably need to do a leakdown test. Worked on a generator a few years back that had a 5% bypass on leakdown but only showed 5 psi on compression gauge. Engine had a clogged spark arrester screen.

Yep, leak down test is the next step. Hydraulic lifters, no hour meter, 19 year old engine. Both my leak down tester gauges broke. Guess I have to buy another one.

 

[smallengineguy]

At that point, I typically roll the engine over by hand until that particular valve is being pushed wide open and let it sit. Over time, that will normally bleed the lifter.

That worked! I left the intake wide open/compressed over night and came out today and it started and ran. Sometimes the basic things work! Thanks VegetiveSteam.

 

[VegetiveSteam]

You’re welcome. Glad it worked. Hopefully it lasts.