George;
        Have you checked fuel pressure? Maybe an injector is leaking or
perhaps the fuel pressure regulator. Pull of the vacuum line and check
for gas there. I have heard the internal diaphragm ruptures, releasing
gas into the plenum.

Good Luck and Drive Safely
Ken Lewis
86 Crewcab, 60 356 T-5
http://Neksiwel.20m.com/

On Sun, 9 Mar 2003 23:35:31 -0500 George Averill <averill@LDL.NET>
writes:
> My 1984 Vanagon has a problem that I have not been able to solve.
> When driving or standing still at about 1800rpm the engine
> experiences about two seconds of overly rich mixture (smoke can be
> seen from the rear view mirror) then runs correctly for about 15 or
> 30 seconds and then repeats this performance

________________________________________________________________
Sign Up for Juno Platinum Internet Access Today
Only $9.95 per month!
Visit www.juno.com