The Ford Barn

29abone · 12-06-2016, 01:23 PM

Hello all.
As some of you well know, Little Dearborn (only 1-1/2 miles from me) has decided to move after sixty years in the same location. I have been buying up the N.O.S. as much as i can. In the mix were multiple Dynamatic fans, fomoco part # 59A-8665. ive not seen much on these,only one that recently sold on ebay. i seem to only find that they were 46-48 only. A little insight would be appreciated

Bruce Lancaster · 12-06-2016, 01:29 PM

These are designed to freewheel when engine does not need the fan and to lock up and drive the fan at a specified temperature. They are controlled by a sensor in the lower radiator hose that installs through the rubber just like a heater hose fitting.

jagnweiner · 12-06-2016, 01:36 PM

Interesting. Do they have any advantage in cooling?

29abone · 12-06-2016, 01:36 PM

Thanks. As i said, i have never heard, or seen these before, & was curious as to their function. The fans i ended up with, are all N.O.S. still in the box, all but one have all the hardware & instructions still wrapped in ford packaging.

35fordtn · 12-06-2016, 02:06 PM

Be certain they have the switches with them as they are impossible to find and commonly missing. I have 13 NOS dynamic fans but only one still had the switch in the box.

Bruce Lancaster · 12-06-2016, 02:24 PM

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The advantage is not in cooling but in saving the power needed to drive the fan when it is not needed. Assuming cooling system is working, fan is generally unnecessary except at a standstill or in slow traffic when there is no flow from the car's motion. Power loss driving a fan is not great but is enough to be worth some trouble.
I once bought one with no switch...and here is how that worked out:

http://www.fordbarn.com/forum/showth...ght=paranormal

That really happened; if you buy one with no switch, don't count on it happening again!

jagnweiner · 12-06-2016, 02:49 PM

Quote:

Originally Posted by Bruce Lancaster

The advantage is not in cooling but in saving the power needed to drive the fan when it is not needed.

Thanks, Bruce. I suspected that was the case.

12-06-2016, 01:23 PM	#1
29abone Junior Member Join Date: Aug 2013 Location: minneapolis, mn. Posts: 24	early v8 factory ford "dynamatic" electric fan Hello all. As some of you well know, Little Dearborn (only 1-1/2 miles from me) has decided to move after sixty years in the same location. I have been buying up the N.O.S. as much as i can. In the mix were multiple Dynamatic fans, fomoco part # 59A-8665. ive not seen much on these,only one that recently sold on ebay. i seem to only find that they were 46-48 only. A little insight would be appreciated

12-06-2016, 01:29 PM	#2
Bruce Lancaster Member Emeritus Join Date: May 2010 Location: Madison, NJ Posts: 5,230	Re: early v8 factory ford "dynamatic" electric fan These are designed to freewheel when engine does not need the fan and to lock up and drive the fan at a specified temperature. They are controlled by a sensor in the lower radiator hose that installs through the rubber just like a heater hose fitting.

12-06-2016, 01:36 PM	#3
jagnweiner Senior Member Join Date: Sep 2016 Location: Geneseo, IL Posts: 290	Re: early v8 factory ford "dynamatic" electric fan Interesting. Do they have any advantage in cooling? __________________ Regards, Scott '47 Mercury Convertible '25 Dodge Bros. Touring Car '63 MG Midget

12-06-2016, 01:36 PM	#4
29abone Junior Member Join Date: Aug 2013 Location: minneapolis, mn. Posts: 24	Re: early v8 factory ford "dynamatic" electric fan Thanks. As i said, i have never heard, or seen these before, & was curious as to their function. The fans i ended up with, are all N.O.S. still in the box, all but one have all the hardware & instructions still wrapped in ford packaging.

12-06-2016, 02:06 PM	#5
35fordtn Senior Member Join Date: Aug 2010 Location: McMinnville, TN Posts: 2,327	Re: early v8 factory ford "dynamatic" electric fan Be certain they have the switches with them as they are impossible to find and commonly missing. I have 13 NOS dynamic fans but only one still had the switch in the box.

12-06-2016, 02:24 PM	#6
Bruce Lancaster Member Emeritus Join Date: May 2010 Location: Madison, NJ Posts: 5,230	Re: early v8 factory ford "dynamatic" electric fan Sponsored Links (Register now to hide all advertisements) The advantage is not in cooling but in saving the power needed to drive the fan when it is not needed. Assuming cooling system is working, fan is generally unnecessary except at a standstill or in slow traffic when there is no flow from the car's motion. Power loss driving a fan is not great but is enough to be worth some trouble. I once bought one with no switch...and here is how that worked out: http://www.fordbarn.com/forum/showth...ght=paranormal That really happened; if you buy one with no switch, don't count on it happening again!