How does it work??
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From: Moorpark
Car: 1991 CAMARO 1968 FIREBIRD
Engine: CAMARO 3.1L FIREBIRD 455
Transmission: CAMARO 700R4 FIREBIRD TH-400
How does it work??
How does a clutch fan work compared to a regular stamped steel fan blade.
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
There are two types of clutch fan, centrifugal or thermal. The blades on each are still stamped steel, but the hub is considerably different.
A centrifugal clutch will disengage when the engine spins faster than a certain speed, to reduce the load required to drive the fan while cruising.
A thermal clutch will slip until the air coming through the rad reaches a certain temperature, at which point it will lock up. It will also slip at higher RPMS.
Clutch fans are more efficient than regular fixed fans or flex fans, but they're also are safer because they don't spin as fast as the engine at high RPMs and therefore are less likely to fly apart.
A centrifugal clutch will disengage when the engine spins faster than a certain speed, to reduce the load required to drive the fan while cruising.
A thermal clutch will slip until the air coming through the rad reaches a certain temperature, at which point it will lock up. It will also slip at higher RPMS.
Clutch fans are more efficient than regular fixed fans or flex fans, but they're also are safer because they don't spin as fast as the engine at high RPMs and therefore are less likely to fly apart.
Last edited by Apeiron; Apr 21, 2005 at 12:07 AM.
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