How do you remove and replace water pump pulleys?

dodgerb440

dodgerb440

Junior Member
How do you remove and replace flathead V8 water pump pulleys? Does it take special pullers? Thank you.

Mike
 
The pulleys, at least those I'm aware of, are pressed on. I use a 20 ton hydraulic press, but that much pressure isn't needed. As I recall, I supported the body and had room underneath for the impeller to pass through the support and shoved the shaft down and out of the pulley and body.

Hope that helps.
 
Its a press job realy. What year pumps? Its quite easy to break the pullys or the pump body if you dont keep an eye on what your pressing on and what your suporting on. With the sealed bearing types (37-47 double belt sheve truck or 48 and up truck or 49 and up car) the oil type are very much safer to play with if you dont know what your doing.
Martin.
 
I sent a pump to Skip Haney with a broken pulley along with a good pulley. Like magic he returned it in a few days like new...Still runnig it!
 
Early 21 stud pumps have the pulley retained with pin that has to be removed. It is a tapered pin and only comes out one way.
 
I am always amazed at the number of great people on this forum that are so knowledgeable, who are wiling to help in any way they can. Thanks to all of you and thank you Ford Barn for providing this site.

Mike
 
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