Fan Hitting Radiator Follow up

[jrelliott]

Water pump shaft will not move forward so no end play, but found the fan loose on the water pump shaft again. Will purchase one of the new aluminum 2 blades to see if the problem goes away. Thanks to all who answered my posting.

[john in illinois]

when you get the new fan,I would suggest checking the fit on the shaft taper before you tighten.Model A Times did an article on water pump fans and shafts that had the wrong taper. Causes loose fan.If the new fan doesn't fit ,the pump shaft could be off.

[1931 flamingo]

I believe on Vince's webite there are pictures of several w/pump shafts, all w/different tapers.
Paul in CT

[John LaVoy]

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When you install the new fan it is best to place the fan on the shaft without the woodruf key in place to see how far it goes to fit tight. Make a mark on the shaft and then install the key and reinstall the fan. If you don't get to the mark the slot in the fan is too shallow or the keyway is too shallow. You need to correct this or the fan will also work loose. This is another problem with fan installation that we covered in the Model A Times.