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Old 02-20-2021, 05:50 PM   #15
James G.
Senior Member
 
Join Date: May 2010
Location: maryland
Posts: 183
Default Re: Looking for opinions - compression low on 2 & 3

Quote:
Originally Posted by Bob Bidonde View Post
If this were my engine, I would:
> Takeoff the intake & exhaust manifolds;
> Chock the wheels & shift the transmission into 3rd gear;
> Pressurize the 2 low cylinders and listen for air leakage at the manifold ports;
> If leakage, takeoff the cylinder head for further examination.
Good luck!
Hey Bob - What would I listen for, valve leak, or ? Then what else. sounds like a lot of work to check for bad valve. Isn't there some other way. How about leak down. Wet the cyl w'oil to check rings, wouldn't the same process look for leak down from valve also?
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