Is the EGR system connected and working? EGR reduces combustion
temperatures and pinging. It was part of the NOx control strategy.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Jonathan Poole
Sent: Friday, March 07, 2008 8:30 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Overall Timing Advance, Air Cooled

Hello,

I have been playing around with the timing on my van trying to balance
between power and cool running temps.  I am curious if there is a
consensus
on what the best overall advance is for an air cooled 2.0 engine.

If I set the timing by the book at about 7.5 degrees at idle it advances
to
about 48 degrees overall.  It seemed like I could hear pinging at that
setting and that it disappeared when I changed the timing to 5 degrees at
idle.  Head temps dropped and there was no noticeable change in power from
7.5 to 5.  I am currently running 4 degrees at idle but haven't noticed
power or temp changes from 5 degrees.

Thanks,

Jonathan Poole
83 AC Westy