The Ford Barn

28PHAETONROY · 06-11-2015, 12:01 PM

Hi all:
I have a question about my 4 blade, stamp metal, riveted fan loosening up on a new stainless water pump shaft. My fan was sound, and has been on the car since restoration in the 50's, I rebuilt the water pump last year and installed a new stainless shaft from Brattons or Snyders, (I haven't looked for my invoice) and now the fan has loosened up a couple of times. I've been able to get the cotter out to tighten the nut which cures it for a few hundred miles, and this last time, it wasn't very loose - I just barely tighten it one notch. So it seems to be getting better, or tighter.

Should I just bite the bullet and take the rad off and see what's going on? Or could this be getting the key re-seated, or something? Are the shafts known to be off in the taper in some shafts?

Just looking for input.
Thanks,
Roy

06-11-2015, 12:01 PM	#1
28PHAETONROY Member Join Date: Apr 2013 Location: Hagerstown, MD Posts: 32	Fan Keeps loosening on water pump Hi all: I have a question about my 4 blade, stamp metal, riveted fan loosening up on a new stainless water pump shaft. My fan was sound, and has been on the car since restoration in the 50's, I rebuilt the water pump last year and installed a new stainless shaft from Brattons or Snyders, (I haven't looked for my invoice) and now the fan has loosened up a couple of times. I've been able to get the cotter out to tighten the nut which cures it for a few hundred miles, and this last time, it wasn't very loose - I just barely tighten it one notch. So it seems to be getting better, or tighter. Should I just bite the bullet and take the rad off and see what's going on? Or could this be getting the key re-seated, or something? Are the shafts known to be off in the taper in some shafts? Just looking for input. Thanks, Roy