There should be no oil leakage associated with the water pump.
By oil heater did you mean oil cooler? The square silver box with the oil filter
attached?
The oil cooler has a large 'O' ring behind it where it contacts the block. And they
can leak, especially in cold weather when things tend to shrink. If it's coming from
there, you might try removing the oil filter and tightening the big nut holding the
cooler to the block. Otherwise you have to remove it to replace the 'O' ring. Although
someone did recently post a method to do it without removing the small coolant lines.
Jerry
----- Original Message -----
From: "Stephen Sloan" <stephen.sloan@SBCGLOBAL.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Wednesday, February 04, 2004 10:15 AM
Subject: I need Diagrams Oil Heater & Water Pump 86' Vanagon

> Hello,
>
> Anyone out there have experience removing the oil heater or water pump?  If
> you have any diagrams or pictures that would be helpful.  The other day my
> 86' Vanagon started pouring out motor oil and I looks like it's coming from
> behind one of the two.  I may be way off but this is what I see.  Hopefully,
> it's not something worse.
>
> Thanks,
>
> Stephen (Indiana, USA)