Re: A pop quiz on some engine tests

[four.rings@MCIONE.com]

Orin Eman wrote:

> Same.  I think it's the delta that matters the most as long
> as you are above the wear limit.
> 
> > Actual test values before the head removal=>
> > Compression:
> > #1 - 120psi
> > #2 - 122psi
> > #3 - 115psi
> > #4 - 118psi
> > #5 - 115psi
> > (not bad for a 10y/o car!)
> 
> Nope, but my '86 5kCSQ with 165k miles is > 130 on all cylinders!
> (WOT, all plugs out, engine warm, coil lead grounded etc..)
> My old UrQ had readings like yours, though with some in the 90s just
> before it went in for a valve job...

My test was the same as you describe except the engine was cold and not
at WOT. The battery was low so it cranked rather slow.
Damn, I should've known better how to properly test the compression!
The numbers would've probably been higher.

-- 
Igor Kessel
'89 200TQ -- 18psi (TAP)
'98 A4TQ -- nothing to declare
Philadelphia, PA
USA