 Cooling flaps, Is this thermostat good |
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| Ron914 |
 Mar 17 2026, 03:40 PM
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Member  Group: Members Posts: 488 Joined: 19-April 22 From: Huntington Beach,Ca Member No.: 26,487 Region Association: Southern California 
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In searching for reasons my car seems to be running too hot of oil temperature I investigated the thermostat /flap system . @Superhawk996 @emerygt350
The thermostat seems good so I will connect it up to the flaps and test . I have a question about the return spring on the flaps , it seems to take a fair amount of force to push it down(closing flaps) than I would expect . Does this seem normal ? I am concerned this amount of force will expand the thermostat before I get it hot . I pulled the thermostat and tested it with a heat gun , relaxed or cold it measured 38.29mm and after heating it expanded to 48.73mm    |
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| L-Jet914 |
Mar 17 2026, 06:35 PM
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Member Group: Members Posts: 386 Joined: 24-October 12 From: Davis, CA Member No.: 15,080 Region Association: Northern California |
Here is the spec the thermostat bellows should be expanded to at 65-70c (149-158F). Also a link to the factory service manuals. http://p914-6info.net/Manuals.htm
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Posts in this topic
Ron914 Cooling flaps Mar 17 2026, 03:40 PM
Superhawk996 Honestly I would leave the thermostat out of the m... Mar 17 2026, 07:28 PM
SirAndy I doubt the thermostat is your problem. They'r... Mar 17 2026, 07:42 PM |
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