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Old 10-09-2018, 07:14 PM   #8
Dlan
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Join Date: Jul 2012
Location: Urbana Ohio
Posts: 8
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I had already tried removing the inners of the t-stat. That made no difference. After a lot of searching on google I found the reason why. The port in the head has to be closed to allow water to move into the radiator. If not closed, the water just circulates though the block.

The pump is a Stewart with the metal impeller. That was replaced when I bought the car. While that’s been 4 years, the car has been sitting most of the time. It gets discouraging when you put something back together using the best parts available only to find it still can’t be driven.

I’ve own a few e30’s and found them to be rock solid dependable cars. This ti has been a learning experience.
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Paul,
From what I understand, if they fail open the only problem would be as you describe.
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