I had the same issues with my daughter's 86.  I have done the following:
replaced one of the two oil pressure sending units: replaced the two o-rings
at the oil cooler; & replaced the rear main oil seal.  It now stays clean,
or reasonably so.

Route 66 Rider!
Ramon Hill
Live Long and Be Free

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Janet Sanford
Sent: Monday, March 19, 2007 1:15 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Do I need a new engine?

Okay my 88 wolfsburg weekender has black spots all over the back from what I
have been told is "blow by."

Does that mean I need a new engine?

I am trying to decide whether to just find another or get this one fixed.

I also have some body damage, but before I trade my great beach car in, I
wanted the wise advice of the list.

thanks,

janet
86GL
88Wolfsburg Weekender