Date:         Sat, 25 Jul 1998 13:17:38 -0500
Reply-To:     David Chasteen <dchaz@GTE.NET>
Sender:       Vanagon Mailing List <Vanagon@vanagon.com>
From:         David Chasteen <dchaz@GTE.NET>
Subject:      Request for insight
Comments: To: Vanagon Mailing List <vanagon@vanagon.com>
Content-Type: multipart/alternative;

Volks friends,

I am having a continuing problem with my 82 air-cooled, non-California (no O2 sensor) vanagon.
I wont waste the bandwidth going into the long story, so I will synopsize:

Symptoms:
Outside temperature 80 deg F or less, engine starts and runs fine.
Outside temperature 90 deg to 98 deg F (approx.), engine runs very rich, smokes (black) and will not stay running.
Outside temperature 98 deg F or higher, engine runs OK with a little grey smoke and acts like it cant settle on an idle speed.

What I have checked and/or replaced:
Temp Sensor II (replaced twice)
Thermo-time switch (operates within Bentley specs)
AFM (checks within Bentley specs) (have tried two of these)
Aux air valve (checks within Bentley specs)
Cold-start valve (does not leak, checks within Bentley specs)
Fuel injectors (good spray pattern, no leak by, checks within Bentley specs)
New plugs, points, condenser, spark plug wires, ignition coil
Fuel pressure checks within Bentley specs

Remember, this is an 82 air-cooled non-California.  It does not have a Hall sensor, idle stabilizer, O2 sensor or any other calif pollution gear.

It is definitely heat related, but does not seem to be affected by any changes in the temperature sensors.

The only thing I cant (and haven't) check, is the ECM.

Any constructive comments?

Chaz
'82 Westy "Peewee"
Brownfield, Texas

P.S.
Given the tone of some of the responses on the list lately, If you dont have an 81, 82, or 83 air-cooled, or do not have experience working on one of these, please do not waste the bandwidth and my time with your "guesses".  I don't need to be told how stupid I am.  My wife does a good job of that already.

Chaz



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