Final (hopefully) update to the 85 Westy cutting out/stalling problem in
Pueblo, CO:
The symptom was cutting out and eventually stalling when it was really hot
outside.  Would restart and run fine after cooling for about 20 minutes.  A
fuel pump seems to have solved the problem. After leaving Pueblo, the
symptoms returned about 50 miles down the road, just as it got to 100F
outside. I got out Bentley and the VOM and learned how to test all the
sensors. All checked out OK. Then I found Len Smith, the Canon City, CO VW
mechanic/junkyard proprietor, who told me I ought to try putting in one of
his junkyard fuel pumps, because he ran into a similar problem with a
Rabbit once, and a fuel pump solved it. I put in the fuel pump, drove
around for a long time (it was still very hot out), and the problem never
happened again. Got back to Seattle fine (except for the separated tire
casing in Casper, WY....)
-Will