I know you were working on this a few months ago.
Did you for sure, and completely fix or eliminate the possibility that it's
the oil cooler or oil cooler o-ring ?
you checked the oil cooler nut is properly tightened ?

did you consider that either oil pressure swtich could be leaking ?
access to the oil pump is not particularily easy.
you'd be removing the cat and muffler, rear cross bar, an aluminum bracket
on the rear of the engine, the crankshaft pully........just to get at the
oil pump.
   I don't think I've even seen a real leak from there either, though it's
very possible, .........and a person can work on VW's for 30 years and still
see a 'new' failure mode they've never seen before.
scott
turbovans

----- Original Message -----
From: "Michael Sullivan" <sandwichhead@GMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Saturday, July 26, 2008 8:57 AM
Subject: Oil Pump removal-Difficult????

> 91Gl AT with same slow leak.  Checked valve covers and they are dry.
> Checked
> cooler seal and good.  I am getting oil in the mount right under and to
> the
> left of the oil pump, right side is dry.  Seems it then dribbles down the
> cooler or the pump housing and across the ?(black tubular cross mount
> right
> behind the oil pump housing) leaving a straight line drip of oil left to
> right on the ground at the rear of the engine. --All left/right,
> front/back
> if you are standing at back of van and looking down.
> Per the ETKA, might be the housing gasket or the oil pump gasket  ????
> How
> hard to check? Thanks all.
>
> --
> Michael in San Antonio
> 91GL AT 'Gringo'