Matthew: I wrote a long oration on how to rebuild a pump and then promply pressed a button that did not say post and it was gone. So here goes
First if the pump has been sitting for a few years it isn't likely rebuildable unless you have a seat cutting tool or a good lathe so you can dress and square the seat for the new seal. So on an old rusty long since used pump it doesn't matter how you get it apart. If it is a recent leaker like the one you have it could be rebuilt just using new parts.
You will need a press and you have so acknowledged. with the press you will need some heavy blocks like these. [IMG][/IMG]
Next pull the wire from the bottom of the pump. It holds the bearing from slipping from the barrel. [IMG][/IMG]
then press the fan mounting flange from the shaft.[IMG][/IMG]
Be sure to leave enough room under the pump so it does not contact the bed of the press.
Turn the pump over and press from the barrel of the pump. Most of these pumps are so old and the parts seated to the extent that if you try to press from the pump body you will break it. You must also besure to get a good purchase on the barrel so it does not cock sideways. Just press straight through the impeller and the bearing will come out the bottom.[IMG][/IMG]
Of course you can also just use a big hammer. Cast iron breaks real easy.
Ted
Posted on May 17, 2008, 10:15 PM from IP address 68.199.187.87
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