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Date:         Sat, 26 Apr 1997 20:59:52 -0800
Sender:       Vanagon Mailing List <vanagon@vanagon.com>
From:         "Shawn & Janis Wright" <vwnut@smuslabs.smus.bc.ca>
Subject:      Corrosion on left side head drain bolt

While removing the drain bolts in the heads today, I noticed the left 
side was quite tough to remove, as I carefully eased it out. 
Inspection showed that the last 2-3 threads were quite corroded, and 
grinding with a wire wheel showed that about 1/2 of one turn was 
completely pitted away.


By contrast the right side bolt was like new. The heads are on a 
factory rebuilt longblock with ~ 160k km on it. Could this be a 
warning sign of things to come?


ps: both sides look equally good, with no signs of crusty deposits 
around the head gaskets.




Shawn & Janis Wright
'88 Westy (338k) '85 Jetta TD (375k)
VWnut@smus.bc.ca  :  swright@smus.bc.ca
http://www.islandnet.com/~swright/vw.html
http://www.smus.bc.ca
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