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[6pack] Carbon on top of pistons - engine experts please help!

To: 6pack@autox.team.net
Subject: [6pack] Carbon on top of pistons - engine experts please help!
From: apackard68@comcast.net
Date: Sun, 4 May 2008 16:26:26 -0700 (PDT)
I had engine run-on issues prior to my restoration project, so while the engine 
was on the stand, I pulled the head to look for carbon deposits on top of the 
pistons.  I found significant deposits on five of the six.  I used to run an 
external oil feed but stopped after going through oil at a fast rate (ring 
problem?).  When I removed the oil feed, oil consumption was greatly reduced 
but my run on problem was present.  What remedy do I have available to a) clean 
the pistons and b) prevent the problem from happening again.  I'm assuming that 
if my engine is put together and broken in correctly, the external oil feed 
should not contribute to additional oil consumption.  BTW, the engine was 
rebuilt in late 2005 with new pistons, rings, bearings, etc for .030 over bore. 
Thanks in advance for advice you can share.
Andy


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