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#1
10-03-2003, 04:41 PM
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Is it normal that fan rotates freely (300D Turbo 82)
This may be too basic to ask, and shows that I've only had the car for a week, but
Is it normal that the main fan (mechanical) rotates freely in a 300D turbo when the car is parked?? Last edited by Judge; 10-03-2003 at 11:53 PM. 
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#4
10-04-2003, 10:38 AM
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It should rotate, but not what I'd call "freely". The fan is bolted to a pretty big fan "clutch" that is in turn rotated by a fan belt.
The fan clutch is supposed to allow some slippage when the engine is at normal temperature, and then start "locking up" when the engine gets hotter. So, on your car, you should see approximately the following behavior. Grab the fan carefully and give it a good spin attempt, being careful not to cut yourself or bend a blade. Just a reasonable spin, not excessive or anything. The fan should stop within one turn or less. If it just spins freely then your fan clutch has gone bad and will never lock up when your car needs it the most. Not a cheap part either. But its something you can probably do without over the winter in a cool climate. Ken300D
__________________
-------------------------- 1982 300D at 351K miles 1984 300SD at 217K miles 1987 300D at 370K miles
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