Fan clutch
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Joined: Jan 2025
Posts: 85
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From: Grand Rapids, Michigan
Fan clutch
Engine was at operating temperature. I shut the engine off and I could freely spin the fan.
Shouldn’t the clutch be “locked” so to speak when warmed up? Making sure I tested it correctly before replacing.
74, 454 for reference.
Shouldn’t the clutch be “locked” so to speak when warmed up? Making sure I tested it correctly before replacing.
74, 454 for reference.
Le Mans Master
Joined: Jan 2007
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From: Omaha NE
2025 c3 ('74-'82) of the Year Finalist - Unmodified
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When it's cold you should feel some resistance & it shouldn't spin more than one or two times...
Melting Slicks
Joined: Sep 2016
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From: Wauconda IL
Le Mans Master
Joined: Jun 2019
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From: Indiana
hi, the fan never locks up..here is my education on fan clutches..you can even adjust when they come on if you change thermostat on some higher temp years..some good links , advice, and videos
https://www.corvetteforum.com/forums...re-79-l82.html
https://www.corvetteforum.com/forums...re-79-l82.html
Le Mans Master
Joined: Jan 2007
Posts: 7,992
Likes: 3,334
From: Omaha NE
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2023 C3 of the Year Finalist - Unmodified
2022 C3 of the Year Finalist - Unmodified
2020 C3 of the Year Finalist - Unmodified
..
Thread Starter
Advanced
Joined: Jan 2025
Posts: 85
Likes: 60
From: Grand Rapids, Michigan
Took a video.
The first spin was last night with the engine warm, the second was this morning with the engine cold. It is the original clutch.
Ignore the fact I don't have the shroud on it. I am just testing the clutch.
