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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

ballast resistor

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Old Feb 14, 2001 | 09:46 PM
  #1  
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ballast resistor

Can anybody tell me what the value of a ballast resistor for a 1984 F-150/302? Thanks in advance.
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Old Feb 15, 2001 | 07:35 AM
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ballast resistor

do you mean what does it do? it reduces voltage to the points.
if you want to know amount of reduction, i think it is reducing to 9 volts. hope this helps. it is used to keep points from burning up.
 
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Old Feb 15, 2001 | 07:40 AM
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From: Durham
ballast resistor

I don't think the '84s had points. The distributors were all magnetic pickup by then.

'82 F150 2WD w/351W (orig 300 I6)
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Old Feb 15, 2001 | 04:57 PM
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ballast resistor

i thinks he is looking for a ohm value which few know
 
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Old Feb 15, 2001 | 05:54 PM
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ballast resistor

for a duraspark II..the ballast R = 0.8 to 1.6 ohms...(Haynes Manual)
 
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Old Feb 16, 2001 | 07:31 AM
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From: Durham
ballast resistor

Where is the ballast resistor located?

'82 F150 2WD w/351W (orig 300 I6)
Slik
 
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Old Feb 16, 2001 | 08:14 AM
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ballast resistor

slik, i checked the Haynes for your year..it is in the "run" ckt from ign sw to the coil..a Red-LT GRN wire..prob in the firewall harness...I'm not sure exactly where tho. haynes manual has a check for the R value of duraspark II....
unplug ign module 2 wire connector (red & white wires)
set VOM on Resistance:
one vom lead to BATT term of coil
other lead to the RED wire in the ign module connector (not the module)
should be 0.8 to 1.6 ohms

some just jump this ballast R out with a wire.
but you'll have some radio interference, etc.
i never trusted the haynes/chilton manuals for specs tho..the helms is the best for a particular year and model/engine
maybe others have more info on the B R's location in the harness...my memory is bad
good luck..post back on what you find

 
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Old Feb 16, 2001 | 04:37 PM
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ballast resistor

Its built into the ignition switch on trucks with the key on the steering coulum 1980 and up that would be
 
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Old Feb 16, 2001 | 05:35 PM
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From: Durham
ballast resistor

Is there an easy way to bypass the resistor? Do you have to remove the steering wheel or can you work your way up to it from the bottom?

'82 F150 2WD w/351W (orig 300 I6)
Slik
 
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Old Feb 16, 2001 | 08:52 PM
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From: Racine WI
ballast resistor

if your a contorsionist you can probably get it by laying on your back or if you have a good sense of feel you can probably fish it out from under there, i dunno about bypassing it tho, no doubt if you hooked 12v to the i (ignition) terminal on the solenoid it would make it run
 
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Old Feb 17, 2001 | 01:49 AM
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ballast resistor

 
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