Ok, you know that your problem is in the burner system, and that your
mixture is too rich.  You can open the burner box and operate it with the
flame out in the open.  First run your 11" WC gas supply straight to the
orifice at the burner, and light the flame with a match or whatever.  If
it's yellow, you are getting too much gas or not enough air, and there are
only two components there -- the orifice and the burner tube.  One of them
is bad.  If it's blue then button up the burner box and try again.  If it's
now yellow, you have a restriction in the flue/intake system.

Forget about the cooling part of the system, it's got nothing to do with it.

david

At 22:59 10/2/2000, Mike Bauermeister wrote:
>cooling-wise.  I've replaced the burner orifice and the regulator on the
>tank.  I've cleaned everything deemed worth cleaning.  I've taken the damned
>thing in and out more times than I care to remember.  I've turned the whole
>unit upside-down for a few days before reinstalling it.  I even rigged up an
>extention gas line so I could light the thing without having it installed so
>I could better observe the workings of the cooling unit while it's working.
>Anyway, I give up.  But I'm still willing to listen if anyone has advice on

David Beierl - Providence, RI
  http://pws.prserv.net/synergy/Vanagon/
'84 Westy "Dutiful Passage"
'85 GL "Poor Relation"