I had the same problem with mine, though it was an earlier
motor I swapped it for, I solved it with a better filter that
has an anti-drainback valve.  I've heard of folks just using
the larger diesel filter..

My two cents is the "Pure One filter" from Purolator
http://www.pureoil.com/  seems to do the job.

Tromper
1982 Dieselfant II
"The Manatee"

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]On Behalf
Of the Zezoffs
Sent: Sunday, April 14, 2002 4:37 PM
To: vanagon@GERRY.VANAGON.COM
Subject: oil pressure at startup in diesel swapped inline 4

I have a diesel Westy that was swapped with a 92 cabriolet egnine.  The oil
pump and pan are the original from the diesel with a total of 50k miles.
50% of the time at startup it takes about 1 minute for the oil pressure
light to extinguish.  The other half of the time, it goes out within
seconds.  Is there a oil pressure checkvalve somewhere that loses the oil or
prime.
TIA