On Mon, 18 Jun 2007 14:18:00 -0400, Jonathan Poole <jfpoolio@GMAIL.COM>
wrote:

A recent discussion on the list encouraged me to
>change the adjustment to 0 turns in with the engine at operating temp.

Hey John,

I have also been screwing around with the valve adjustment on my 1982 air
cooled westy.  I have found that setting the adjustment to 0 turns when
warm results in good compression, but poor performance (barely keeps
running at cold idle, very low gas mileage, low manifold vacuum 11-12in
Hg).  If I set the valves to 1-2 turns in (per the Bentley) it runs like
absolute dog crap.  Only by setting the valves to 0.006 in of clearence
does it run well and generate decent manifold vacuum (17 in Hg).

Frankly, I don't understand why the factory reccomended settings don't
work on this motor.  Wish I had a better idea of what was happening here.

jake