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Old 02-21-2021, 09:36 AM   #19
Big hammer
Senior Member
 
Join Date: Jun 2014
Location: Land of Lincoln
Posts: 3,131
Default Re: Looking for opinions - compression low on 2 & 3

Quote:
Originally Posted by Flathead View Post
The piston should be at TDC on compression stroke when testing a cylinder. If a valve or two are even slightly open you will be chasing your tail.
Also DONT use 120psi shop air, use air regulated to 60psi max! Check with a local automotive parts store for a leak down tester for rent!
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Don't force it with a little hammer tap, tap, tap
get a bigger hammer tap done
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