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FattyBoomBatty · 04-08-2009

throttle was depressed completely on the comp check? Those numbers don't seem too bad to me. Pretty much all the same (only a small percentage difference).

The leakdown tester is a strange thing, but how I read it was by checking known good compression cylinders then checking the supposedly bad one(s), and comparing the pressure required to keep the needle in the green area/zero on the second gauge. On the bad cylinder it took more air, plus on the dude's engine we could hear it coming out the exhaust pipe (bad valve). The whole time we had pressure in the engine, it was leaking past the rings, but his compression was perfect on 3 of 4 holes.

If I were you, I wouldn't worry about the rings.

04-08-2009	#86
FattyBoomBatty Banned Join Date: Dec 2003 Location: Boulder, CO Drives: Conquest Posts: 5,049	Re: Little. Blue. Different. throttle was depressed completely on the comp check? Those numbers don't seem too bad to me. Pretty much all the same (only a small percentage difference). The leakdown tester is a strange thing, but how I read it was by checking known good compression cylinders then checking the supposedly bad one(s), and comparing the pressure required to keep the needle in the green area/zero on the second gauge. On the bad cylinder it took more air, plus on the dude's engine we could hear it coming out the exhaust pipe (bad valve). The whole time we had pressure in the engine, it was leaking past the rings, but his compression was perfect on 3 of 4 holes. If I were you, I wouldn't worry about the rings.