A leak down test will quickly pinpoint whether you have a valve or ring
problem. My bet is valve. Then you need to determine why the valve
failed. Were the guides replaced? Where the seats cut? Something was
wrong.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
Of John Schaper
Sent: Monday, May 02, 2005 10:50 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Bad Valve

Last week I posted a question about stalling at stop lights.  After
further
tests, I did a compression test and found #1 at 30, the others at
130-140.
Had the valves replaced about 5,000 miles ago.  Assuming bad valves, do
all
4 have to be replaced or can just the bad one?  Further, based on the
compression test, could it be bad rings on the cylinders and not the
valves?

John Schaper
Assistant Director Ancillary Services
Health Services Agency
P.O. Box 3271
Modesto, CA 95353
209.558.7102
209.558.8320 (fax)
jschaper@schsa.org