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Classic Mustangs Tech Forum

Technical discussions specific to 1964-1967, 1968-1970, and 1971-1973 Classic Mustang. Discuss all tech related to in-line six cylinder and V8 powered Vintage Mustangs here.

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Unread 08-19-2013   #1 (permalink)
66 restomod is offline GT Member


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Benicia   California
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Default Electric cooling fan problem

Chris was in stop and go traffic just before the Bay Bridge and the temp gauge crept up to hot. He was able to get off the freeway and found the fan was not turning on. The fan relay had gone bad. Luckily he was able to change it out with a spare.

I started to think what if the temp control had gone out. It would have been a breakdown alongside the road and time to call the tow truck.

This weekend we ran an alternative emergency power source (Fused) that will give power to the fan until the switch is turned off. It is strictly an emergency backup. Currently the switch is by the the radiator but I am thinking of relocating it inside the car.

Something I had not considered when I put the circuit together and thought it might help someone else.

Attached is the schematic with the new circuit in green.

Pictures and original write up:
Cooling
I will update the site with the new drawing soon.

Good Luck and be Safe
Ron
Attached Thumbnails
Electric cooling fan problem-fancontrol3.jpg  
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Unread 08-19-2013   #2 (permalink)
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thats an awesome idea
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Unread 08-19-2013   #3 (permalink)
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ankeny   Iowa
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always a great idea. this is actually the reason I run mechanical fans for incidents such as this. for instance what if the fan itself has a failure and you do not notice? you have then just cooked your motor. an electric in conjunction with a mechanical is a great idea, but I just wouldnt trust solely an electric fan on a car you plan to drive long distances or drive often. IMO leave the stand alone electric fan on the strip.

don't want to start a war on the topic, but its just my .02 and something for everyone to think about.
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