[GRMhick]

Just wondering what would cause a cyl to be about 40 PSI higher than it should be.
Someone told me carbon build up can cause it?

 

[mikeswrangler]

not sure about that one.. which one is it ?
and what are the other readinds of the others next to it..lol

 

[GRMhick]

All range, one at 130, 2 at 150, one at 180, etc

 

[flecker]

What kind of engine? Your compression looks bad with those numbers. Should be no more than 15 percent difference, ten if you want factory. You sure that one isn't low??? Whats the factory specs? Usual causes are rings, hg, valves...

 

[GRMhick]

Factory specs are between 125-135 PSI