Fan Clutch Replacement

A small amount of resistance always keeps the fan spinning but its basically free wheeling until the fan clutch engages.

Floor fan just stopped working. A light smear of silicone fluid could be normal seepage no seal is perfect. Replace the fan clutch. The fan clutch replacement process will also work for almost any other.

Fan clutch part numbers are usually located in one of two places on the fan mounting surface. For onoff and two speed drives the part number may be on the front or back of the fan mounting disc. This fan clutch is a great replacement for gm vehicles.

This large nut is directly attached to the fan clutch mechanism. The fan clutch will spin loosely until the temperature reaches a certain level at which point the fan clutch will fully engage so that the fan can work at maximum efficiency. A fan clutch is designed with a temperature sensitive spring that is used to control the engaging and disengaging of the fan depending on the temperature of your engine.

When the fan clutch engages it spins up greatly increasing air flow through the radiator and over the engine. Ford clutch fans have evolved from the fan that attaches to the water pump pulley with four bolts to a fan that attaches to the water pump with a singular large nut. The fan clutch is a thermostatic device which means it operates based off temperature and is usually mounted on the water pump or another belt driven pulley.

1991 ford f 250 custom 8 cyl 58l reverse rotation severe duty thermal fan clutch with ac. There are three types of fan clutch depending on the vehicles design. Other fan clutch manufacturers tend to put a printed sticker with the part number in a similar location on the drive.

I replaced it in my 2005 chevy trailblazer with the i6 engine. Fan clutch types. Scotty kilmer mechanic for the last 46 years shows how to replace a defective cooling fan clutch assembly.

1991 ford f 250 xlt lariat 8 cyl 58l reverse rotation severe duty thermal fan clutch with ac. Obviously if a substantial amount of fluid is missing the clutch wont spin as fast as it should. As you you drive faster the temperature of your engine creeps up and eventually causes this spring to expand thereby engaging the fan clutch.

Learn how to change the fan clutch on your mazda b3000 and ford ranger pickup trucks. Getting the old one off of the water pump shaft was a breeze but getting the fan shroud out was a little bit more of a challenge but all doable for the diyer mechanic.