If it is not the oil pump or one of the other sources noted could the seal at the end of the crankshaft be leaking?  I have a similar "drip" from our 85.  Once the cat, muffler, cross bar and pulley are removed the source of the oil should be visible.  How hard is it to replace the seal on the crank?

George
'85 Westfalia

----- 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'