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Old 07-11-2010, 10:27 AM   #1
jrelliott
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Default Fan Hitting Radiator Follow up

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.
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Old 07-11-2010, 03:25 PM   #2
john in illinois
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Default Re: Fan Hitting Radiator Follow up

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.
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Old 07-11-2010, 06:32 PM   #3
1931 flamingo
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Default Re: Fan Hitting Radiator Follow up

I believe on Vince's webite there are pictures of several w/pump shafts, all w/different tapers.
Paul in CT
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Old 07-11-2010, 07:24 PM   #4
John LaVoy
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Default Re: Fan Hitting Radiator Follow up

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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.
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