'80 Westy - less than 5 K on rebuilt engine - has developed a "take a rest"
attitude. It runs like a champ for 15, 30 or 120 minutes then just quits - dead
- nothing. Let it sit for 15 to 30 minutes and it fires up and goes until it
quits again - no cough or sputter - just dead. This thing has been in the "Air
cooled VW Specialists" shop for - I don't want to admit how much time and
replacement parts ( a bunch). All the hull sensors have been replaced at least
once and the last time the repalaced the distributor ( it is a CA car). I think
it might be one of the several sensors on the engine itself but can't put any
consistency to it - after one quit - bout 20 min - it climbed 4000' at a
steady 8% grade (east side of Yosemite) - then quit when it leveled out at 9000' -
rested and started again then ran smooth down to 2000' where I stuck it back
in the shop and called for my F150. They thought they fixed it - not! I cannot
define any consistency with elevation, load, weather, terrain, etc. The damn
thing just seems to have a mind of its own and wants to rest. Not too cool on
mountain roads with minimal shoulder or Baja with no shoulder at all in the
hills. Any suggestions would be greatly appreciated.

Thanks for any thoughts, Pete