How do you check a manual fan clutch?
How do you check a manual fan clutch?
To confirm the diagnosis, start with this simple test: Spin the fan as hard as you can on an engine that has not been started that day. If the fan rotates more than five times, you can bet the clutch is bad. You should feel some resistance and the fan may spin up to three times, depending on the ambient temperature.
How do you remove a clutch on a Ford Fan?
Remove the large nut on the fan with the 1-1/16 wrench by turning counter clockwise. Once loose, turn the fan in the same direction and it will come right off.
What happens when you have a stuck fan clutch?
A stuck fan clutch will cause excessive, unnecessary drag on the engine, which can cause a drop in power, acceleration, and fuel efficiency, sometimes to a quite noticeable degree.
How is a fan clutch attached to a water pump?
This large nut is directly attached to the fan clutch mechanism. The water pump pulley has about 1-inch long threaded post on the end of the pulley. The nut is screwed onto the post on the water pump pulley. This requires a large wrench and a tool to lock the pulley from moving as the nut is broken loose. Remove the fan shroud.
What is an electric fan clutch?
The fan clutch is a cooling system component that controls the operation of the engine cooling fans. While many newer vehicles now use electric cooling fans to keep the engine cool, many older vehicles used a mechanical fan clutch to control the fans.
Remove the large nut on the fan with the 1-1/16 wrench by turning counter clockwise. Once loose, turn the fan in the same direction and it will come right off.
This large nut is directly attached to the fan clutch mechanism. The water pump pulley has about 1-inch long threaded post on the end of the pulley. The nut is screwed onto the post on the water pump pulley. This requires a large wrench and a tool to lock the pulley from moving as the nut is broken loose. Remove the fan shroud.
How can you tell when a fan clutch is going bad?
You should be able to audibly detect when the fan clutch engages, with an accompanying rush of air. At idle, as engine temperature increases, a thermal fan clutch will engage at a certain temperature. Torque-limiting fan clutches will disengage at a certain engine speed.
How do you replace a fan on a Ford?
Replace the fan by holding the nut perfectly level with the water pump post and start the nut by hand, making sure not to strip the threads. Once started, spin it on the rest of the way by hand, turning the fan clockwise. Once it will not turn any farther, use the large wrench and give it an assertive yank to lock it on.
