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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

risister wire problems over heats

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Old Aug 1, 2011 | 10:44 AM
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From: Gentry
risister wire problems over heats

bought a 1970 ford pick up with a late model engine 351 400m 1977, prob is how is the resister wire for the brain hooked up to the switch. At present is staying hot after it starts
 
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Old Aug 1, 2011 | 11:13 AM
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gfw1985
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From: Raphine, Virginia
This should help. Guessing it's Duraspark. It does stay hot electrically and will feel rather warm to touch also.
 
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Old Aug 5, 2011 | 12:27 PM
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From: Gentry
Thanks...the diagram helped alot.
 
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Old Aug 12, 2011 | 06:28 PM
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NumberDummy
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The resistor wire is the same with/without a "brain." There are two possibles for 1971/86's.

COLF-12250-A .. Resistor Wire-Ignition Coil (Motorcraft DY-37).

61.49" long / Color coded PINK / 1.30-1.40 ohms resistance / #20 gauge wire.
----------------------------------------------------------------------------
D1AZ-12250-A .. Resistor Wire-Ignition Coil (Motorcraft DY-84A)

60" long / Color coded Red with Green stripes / 1.30-1.40 ohms resistance / #16 gauge wire.
 
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