Clutch Fan OIL???
Cummins Guru


Joined: Feb 2008
Posts: 4,191
Likes: 65
From: Sunny Southern California Land of Fruits and Nuts
Sorry, time for a new clutch fan that one is shot.
LEAKS
Viscous fan drive operation is not affected by small oil stains near the drive bearing. If leakage appears excessive, replace the fan drive unit.
VISCOUS DRIVE
If the fan assembly free-wheels without drag (the fan blades will revolve more than five turns when spun by hand), replace the fan drive. This spin test must be performed when the engine is cool.
LEAKS
Viscous fan drive operation is not affected by small oil stains near the drive bearing. If leakage appears excessive, replace the fan drive unit.
VISCOUS DRIVE
If the fan assembly free-wheels without drag (the fan blades will revolve more than five turns when spun by hand), replace the fan drive. This spin test must be performed when the engine is cool.
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That's why you should always stand the fan on edge when you take it off the truck. I know, I know, that's real helpful information now!
