>
> Hi greetings from EUrope
> Of course is the compression reading higher if the engine is cold. The
> oil is stiffer and gives a better seal on the cylinder walls.
> A slightly higher compression is often quite normal, as there is a lot of
> coal built up in the cylinder head and thus reducing the volume and
> increasing the compression ratio. This could be the reason as Your car
> isn't running veryl well, as You wrote.
Ooh. I dunno about this. It's the norm to take compression readings when HOT
because then the rings expand to take up space...thus you get better
compression from a hot engine (ebrything fits properly eg, valves etc).
Thats why your engine runs crappy ona cold morning...everything is loose.
Oil doesn't provide the seal...the rings should.
Increased compression
can be a result of 'coking' ...i.e., carbon build thus
reducing volume of cylinder. You just need a stiff wire brush, whip
of the head, and clean it all up.
200psi is real good (as long as it's not due to coking!)
Marcus
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