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Author
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Topic: How does a clutch fan work?
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rockafellz
Gearhead Posts: 1249
From: San Lorenzo, CA, USA
Registered: Aug 2001
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posted 06-06-2003 02:18 AM
   
Let's see if I have this correct...When the radiator is cold, the clutch fan is cold and is dis-engaged?!? When the radiator is hot, the clutch fan coil (or oil?) expands and grabs the fan and turns the same speed as the pulleys turn. It dis-engages when the temp goes down? Is this correct? Thanks in advance. Erik ------------------
1966 Ford Mustang 2+2
Mine - Restomod in Progress 1966 Ford Mustang Coupe
Dad's - Original Unrestored
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69 Sportsroof
Gearhead Posts: 1138
From: Valley, Alabama, USA
Registered: Mar 2002
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posted 06-06-2003 11:54 AM
That's the way thermal cluthes work. The non thermal are engaged at low rpm and them release at higher rpms when in theory you dont need the fan (highway speeds). From all I can tell the thermal would be the way to go for a cruising car but they are a tad more expensive......
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indyphil
Gearhead Posts: 635
From: Lafayette, IN, USA
Registered: Jul 2002
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posted 06-06-2003 12:09 PM
I recall a friend of mine owned a car that had a clutch type fan (I think it was the low speed kind) but the clutch jammed and the fan ran above its rated speed before finally letting go one day without warning. Made a real mess under the hood. Just a silly story - but i have kept my distance from clutch fans since then.------------------
'68 coupe 289 C code
66 heads, edel 600cfm carb, performer intake, dual exhaust
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