why is my compression bad? :(

[scirocco-al@insight.rr.com (Alan Stamper)]

Was the motor hot or cold when you did this?  Also, this may seem like a
silly question but did you make sure you had the throttle body open when you
cranked it?

Alan
----- Original Message -----
From: "Michael Abatzis" <abatzis2@hotmail.com>
To: <scirocco-l@scirocco.org>
Sent: Sunday, March 02, 2003 5:48 PM
Subject: RE: why is my compression bad? :(


> the lack of power is due to you not having enough valves ;) a 10 psi drop
> isn't a lot.  don't know what the specs are for the 8v, but if the
pressures
> are even on a newly rebuilt engine, there's nothing to worry about. did
you
> use the same gauge for both readings? also, if this was *immediately*
after
> the rebuild, you probably had some assembly lube in there sealing off the
> chambers.
>
>
>
> -Michael Abatzis
> Hotlanta! GA
> 1988 Scirocco 2L 16v RIP-->parting, finally taking orders:
> www.learnlink.emory.edu/~mabatzi/mikes_page1.html
> 1987 Scirocco 2L 16v...
>
>
>
>
> >
> > >  -----Message d'origine-----
> > > De : scirocco-l-admin@scirocco.org
> >[mailto:scirocco-l-admin@scirocco.org]
> >De la part deRobbie Cotner
> > > Envoye : 2 mars, 2003 17:27
> > > A : scirocco-l@scirocco.org
> > > Objet : why is my compression bad?  :(
> > >
> > > I ran a compression check on my JH 8v today, 135-140psi on all
> >cylinders.
> >Adding some 80w-90 to the cylinders raised all readings ~10-12psi.  This
> >thing was rebuilt 10k ago, immediately after the rebuild I had 150psi on
> >all
> >cylinders!?  I was hoping compression would increase once the rings got
> >seated.  From what I've read 130psi is the minimum for JH's, I'm not
happy.
> >Is this why my engine has such low power?  I really have babied this
thing,
> >never revved above 5k, I've changed the oil many times and am running
> >synthetic 10w-30.  My exhaust smokes all the time, but the smoke is white
> >as
> >a ghost and I attributed it to the cold...  my spark plugs also show no
> >indication of burning oil.  Any opinions on this?  Thanks in advance,
> > >
> > > Rob
> >
> >
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