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Old 05-06-2019, 06:45 PM
97 SL320 97 SL320 is offline
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Join Date: Jan 2012
Posts: 7,534
Quote:
Originally Posted by duchamp View Post
I did the bubble check, no bubbles, took out the thermostat and let it idle for 30 mins, temp stayed at it's normal level, about 50, I don't know if that means it is fixed...
There is a disc on the end of the thermostat that is vital in blocking the bypass port, don't dive the car with thermostat removed. Testing the thermostat involves placing it in water then raising the temp until it opens. Stat opening temp is stamped on the stat.

Did you do a leak down test? What sort of bubble test did you do?
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