Fan removal

[cuda]

Is the fan pressed on? I took the nut off the water pump shaft but I can't get the fan loose. Thanks.

 

[RonC]

It's pressed onto a keyed waterpump shaft.

 

[cuda]

Thanks RonC. I knew about the hey. Looks like I need to buy a press.

 

[Glenn C.]

A press for this case may not be your best choice. If you have the pump removed, either screw the existing nut on upside down, leaving about 1/32" gap between nut and impellor. Cradle impellor in your arms, and have someone strike the end of the shaft with a sharp blow. A pump impellor removal tool can be purchased from one of the vendors.

 

[Richard in Anaheim CA]

An old trick to removing the fan from the shaft is to remove the king pin lock nut and tighten it on the water pump shaft.

The nut will bottom out and leave a 1/16 or so between the nut and the fan pullly. Have someone support the fan with both hands close to the pulley and then give the nut a good rap with a hammer.

The fan should come right off and you won't damage the threads on the water pump shaft.

Don't forget to replace the king pin lock nut where it belongs.

Richard
Anaheim CA

 

[Bruce Adams]

The vendors all sell a "Fan Removal Tool" for $2.00
You screw in on the shaft, hold the fan blade and give this "tool" a rap,
Voila !
Fan is loose !
Similar to Richard's "old trick."

 

[Tom Endy]

Another method is to get a bolt with the same size threads as the shaft, about 2" long. Get two nuts the same size. Remove the pump shaft nut. Screw one of the nuts half way onto the shaft. Screw the bolt into the other half of the nut until it bottoms. Use the second nut to lock the first nut into place. Position the pump to hang straight down and tap on the end of the bolt.

Tom Endy

 

[cuda]

Thanks guys for the tips. I'll try one of those before spending coin on a press.

 

[Keith True]

A press wouldn't do you much good anyway.There is nothing to press against.You can't support it by the pulley,and you can't support it by the blades.It is a taper fit too,not a press fit.You can use an old head stud for a knock off puller.Screw an old head nut halfway on,tack it there,then screw it onto the water pump shaft.It will be butted up stud-to -stud,with no pressure on the threads.Hold the pulley/fan in your hand with the pump hanging down and whack the end of the stud.Don't be a wuss,hit it like it just hit you.Use a real hammer,not a little ball peen.

 

[glenn in camino]

I usually put the nut back on until it reaches the end of the shaft. Hold on to the fan and hit the end of the shaft with a heavy hammer. The nut on the end of the shaft will keep the threads from getting damaged.