[V8] Oil Leak from Heads

[S_Matus]

I know of some epoxy adhesives which are high temperature and should help in sealing.

Scott.
Too many Audis

---------- Original ----------

Message: 4
Date: Thu, 04 Jan 2007 10:34:15 -0800
From: Paul Jager <pjager at telus.net>
Subject: Re: [V8] Oil Leak from Heads
To: v8 at audifans.com
Message-ID: <DLECLFBCCBAOKOODGNHIGEMKJFAA.pjager at telus.net>
Content-Type: text/plain; charset=us-ascii


I think a large number of oil leaking V8's are actually from the heads.
Initially most people would say the distributor seals etc etc. but I 
believe
that is not the culprit. When I got this v8 '93 4.2 with 100K Km's on 
it the
used car sales said the same thing - distributor seals. But the service
record showed new head gaskets at 50K and when I drove it they were 
still
leaking. The leak got worse to now at 180K it was quite bad, at full 
rpms
oil press 3-5 bar.

So we torqued the driver's side head and the leak is way way down. Now 
I
have to do the other side.

We opened up a 928S4 engine yesterday and the oil feed to the heads are 
at
the corners of the block, near the edges - something like a 1/4" 
passage
through there. For the V8 this would be rear drivers side and front
passenger. Again I don't think there is quite enough surface for a 
proper
bullet proof seal in the V8 block. If I were to pull the heads I would 
use
some sort of compound around that area for extra sealing.

Paul

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