Valves and Compression

[Brian Devlin]

Zero- ouch. I had an engine with 1mm wide in an
exhaust valve and it still came up with 50% of normal
pressure. I'd suspect you have a valve stuck open - or
your missing piston.
-Brian D.

>
>Have a 91 Q8 and just returned from my shade-tree
specialist.  He said the compression of the left side
was 60, 100, 80 and 0.  He did not do the right side.
According to him, a valve job is in order.  Several
questions:
>
>1. Is this, in fact, indicative of a needed valve
job?
>2. If so, do I do the one valve (No. 1)?  Or the
whole 8??
>3. What is a reasonable price to pay for such a job??
 I assume that I don't want to go to the Audi dealer,
right??
>4. The car has 180K on it, and other than the
sluggishness, is in good shape.  Can I run it in this
condition for a while longer??  If I do, what's the
likelihood of something else going wrong??
>
>Thanks for your help.  I'm a "newbee" to the site,
love my Audi and looking for some guidance.
>
>Bruce
>

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