[s-cars] Rear main seal leak - try dino oil again?

[Tom Mullane]

Dennis,

Who told you it was the ball bearing?  Are you sure it isn't a cam adjuster
seal?

Tom


Date: Sun, 15 Apr 2007 15:20:07 EDT
From: DGraber460 at aol.com
Subject: Re: [s-cars] Rear main seal leak - try dino oil again?
To: HOOG23 at aol.com, s-car-list at audifans.com
Message-ID: <d4d.5ec4d04.3353d4e7 at aol.com>
Content-Type: text/plain; charset="US-ASCII"

We have a 98 A6 2.8 with the dreaded rear of the head leak that drips on
 the
exhaust and smells like a "trailer trash" oil burner. It has done this for
3-4 years and the cure (I'm told) is to pull the head and re-peen the small
steel ball into the head. No plug, no threads , and no way to service this
pinnacle of superior German design except to pull the head to fix one small
 leak.
I switched to dino oil (Valvoline) and it reduced the occurrence
significantly. Recently I had a lapse of memory and filled it with
 synthetic. Within
very few miles it started leaking again very badly.  Switched back to dino,
and
it has abated once more. This is not a car  I will put in my will, a turbo,
or
any such, so for now, I'm OK  with the extra deposits that will also result.
So from where I sit it, would be worth a shot.

Dennis
Denver