Michael,
Did you test the sensors and hall unit when they were hot i.e. at failure
time? I have seen TEMPII sensors that read fine when cold but way off at
operating temperature. I have also had a heat sensitive HALLS sender.
Ken Lewis
86 Transporter Crew Cab
60 356 T-5 Porsche
http://neksiwel.20m.com/
Vanagon tech, pixs, O2 monitor gadget
----- Original Message -----
From: "Michael Brenner" <brenner9@YOSEMITE.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Tuesday, May 18, 2004 11:40 PM
Subject: Re: [VANAGON] Timing

> I think I may have a timing issue with my 84 Westy. When reading the
Bently
> manual, I'm a little confused as to what RPM you set the timing at. From
> what I can  make out it appears to set the timing at 2500rmp? Is this
> correct? (I have had to set early 911's at 6000rmp, which was a lot of fun
> to stand behind with this screaming motor). Trying to diagnose a wierd
> problem. The van fires up and runs for about 3 to 5 minutes, and then
> gradually misses and stalls completely and will not start, not even with
> ether. When it cranks over it has that sound and feel like the timing is
> off, but never fires at all. I usually have to wait until completely cold
> before it will restart. I have tested the sensors, the air intake plate,
the
> deacceleration switch and the full throttle enrichment switch, and they
test
> good. Tested the hall unit for voltage and flicker, and it tested ok. The
> injectors have new seals and do not drip. New plugs, cap, rotor and wires
> (the correct wires). It seems like the timing drifts away, if that makes
> sense. As soon as I can adapt my american fuel pressure tester to the
german
> test port, I will see what the fuel pressure is doing. Compression is ok,
> not great, 120-125 when the car is warm.
>
> Any suggestions would be greatl;y appreciated.
> Mike Brenner
>