What's the thickness of the standard cylinder head gasket?

reyft

Member +
İ need new head gasket aswell will put new Scat conrods, i want check before open engine compresion test.. İ think now std head gasket on my 4efte
How many psi should be with 74.5 mm je pistons compresion? İ will buy athena metal gasket for it.. But size?
Thanks..
 

Skalabala

Member +
İ need new head gasket aswell will put new Scat conrods, i want check before open engine compresion test.. İ think now std head gasket on my 4efte
How many psi should be with 74.5 mm je pistons compresion? İ will buy athena metal gasket for it.. But size?
Thanks..

That will depend on if your pistons are dished or not.
 

finx

Member +
Those saying 1.2mm and 1.0mm crushed are correct.

Compression ratio and cylinder pressures are two different things.
your compression ratio is fairly straight forward to calculate using the correct formula and your engines specs.
Your cylinder pressure (which is measured in psi) calculated via a compression tester will be harder to estimate as to what it should be. So long as each cylinder is within 5% of one another you should be quite happy with assuming the engine is in good condition.

Cheers
Ryan
 
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