[Vwdiesel] Poor compression Q's

[Mark Shepherd]

How low is low?
Two together sounds like a gasket
Are they next to each other?
As an additional check, check cam shim clearance.
 Any pressure in water system with cranking?
Mark
----- Original Message ----- 
From: "Todd Osterbrink" <tosterbrink at verizon.net>
To: <vwdiesel at vwfans.com>
Sent: Sunday, November 27, 2005 7:41 PM
Subject: [Vwdiesel] Poor compression Q's


Got low compression in 2 cylinders in a 1980 Dasher diesel.  Thinking bad
rings, since the performance of the thing went from good to bad within a
day.  Running bad, missing, lots of blue smoke, and starting hard.  Checked
pump and cam timing, all in spec.

What could cause piston rings on a 1980 Dasher diesel to go bad?  The
engine has 85,000 miles on it since rebuild (which included new over size
Mahle pistons, rings and such).  Could it be something else?
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