[s-cars] An overheating '93 UrS4

Igor Kessel KBATPO at comcast.net
Wed Feb 23 13:43:06 EST 2005


Fred Munro wrote:
> Igor;
> 
> Based on your post, I'd guess his thermostat has failed closed and his
> heater core is leaking. The water pump may have a failed impeller, but that
> would also limit circulation through the heater. If he's getting heat, the
> water pump may be OK.

And a stuck thermostat it was. Right now it is sitting in a in a pot of 
boiling water @ 99ºC, shut closed. Larry, you're one lucky guy that it 
happened not too far away from my house.

The new thermostat looks rather bizarre. Its moving disk is now
completely encased in rubber. I boiled both of them side by side in a
pot on. The new one opened at ca. 90ºC, as expected.

The car is now back together. Thanks for your input, guys!

-- 
Igor Kessel
two turbo quattros



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