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Old 11-13-2012, 07:54 PM
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KAdams4458 KAdams4458 is offline
Mmm! Diesel!
 
Join Date: Apr 2007
Location: Snohomish, WA
Posts: 1,420
ll
Quote:
Originally Posted by qwerty View Post
It should be open cold, closed when above approx 110*F.
In that case, it's obviously stuck closed. Well, I guess I'll swap in the switch from the old motor. That will give me the opportunity to test it with a pan of water before I install it, too. I suspect the old switch must be failed open, as the one overheat incident I had with that car resulted in no aux fan action, and in the 77, it is obviously intended to kick on not just tor ac heat as the later models do, but also for engine coolant overheat incidents as well.
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- K.C.Adams

'77 300D Euro Delivery
OM617 turbo / 4-speed swap
404 Milanbraun Metallic / 134 Dattel MB-Tex

Current status:
* Undergoing body work


My '77 300D progress thread

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