The Ford Barn

Bob from Northport · 04-16-2015, 10:59 PM

Is there a general measurement of how far the nut that holds the fan blade on a water pump should be from the radiator inner face?? We have 5 trucks and cars in the shop right now, and all have slightly different measurements of the distance.

Thanks!

ericr · 04-17-2015, 06:47 AM

Bob, this subject was discussed in some detail, with pictures, several months ago. You might want to try a search to track it down, though I know that can be challenging here, I have trouble with it. Several explanations were given such as repro fans not fitting the water pump shaft correctly, water pump shafts that were too long, different front end support springs, etc.

Tom Wesenberg · 04-17-2015, 07:38 AM

My 28 Phaeton with original parts has 3/4".

Ray in La Mesa · 04-17-2015, 08:09 AM

I believe the controlling factor is how far the impeller is pressed on to the shaft,that determines how much shaft protrudes from the front of the housing and how close the fan nut is to the radiator.

rocket1 · 04-17-2015, 08:26 AM

I measured 5/8.

marc silva · 04-18-2015, 12:43 AM

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I got 3/4 of an inch. You still have to move radiator ahead a little to get the pump out. Just enough that you have to loosen the top hose clamp and un-do the support rods. It's about 3/8 ths of an inch short to not screw up the radiator fins.

04-16-2015, 10:59 PM	#1
Bob from Northport Senior Member Join Date: May 2010 Location: 215 E. 6th Street Northport, Michigan 49670 Posts: 941	Water pump to radiator clearence Is there a general measurement of how far the nut that holds the fan blade on a water pump should be from the radiator inner face?? We have 5 trucks and cars in the shop right now, and all have slightly different measurements of the distance. Thanks! __________________ Bob from Northport Northport, Michigan

04-17-2015, 06:47 AM	#2
ericr Senior Member Join Date: Apr 2012 Posts: 1,542	Re: Water pump to radiator clearence Bob, this subject was discussed in some detail, with pictures, several months ago. You might want to try a search to track it down, though I know that can be challenging here, I have trouble with it. Several explanations were given such as repro fans not fitting the water pump shaft correctly, water pump shafts that were too long, different front end support springs, etc.

04-17-2015, 07:38 AM	#3
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: Water pump to radiator clearence My 28 Phaeton with original parts has 3/4".

04-17-2015, 08:09 AM	#4
Ray in La Mesa Senior Member Join Date: May 2010 Location: La Mesa Ca Posts: 1,166	Re: Water pump to radiator clearence I believe the controlling factor is how far the impeller is pressed on to the shaft,that determines how much shaft protrudes from the front of the housing and how close the fan nut is to the radiator.

04-17-2015, 08:26 AM	#5
rocket1 Senior Member Join Date: Mar 2014 Location: Midland Park,N.J. Posts: 1,108	Re: Water pump to radiator clearence I measured 5/8.

04-18-2015, 12:43 AM	#6
marc silva Senior Member Join Date: Apr 2013 Location: santa rosa ca Posts: 257	Re: Water pump to radiator clearence Sponsored Links (Register now to hide all advertisements) I got 3/4 of an inch. You still have to move radiator ahead a little to get the pump out. Just enough that you have to loosen the top hose clamp and un-do the support rods. It's about 3/8 ths of an inch short to not screw up the radiator fins.