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+--- Thread: electrical help (/thread-2979.html)
electrical help - scbronco - 11-20-2011
ok, so electrical is NOT my strong suit... got a couple of questions...
i have been looking at some wiring diagrams on classic, and they dont exactly seem to match my 74...
at the starter solenoid, i have a yellow wire, off the main harness, and a fuseable linke off the Alt Harness, do both of these wires terminate to the positive post on the solenoid? also have a whiteish wire off the alt harness that i have no clue where it should go...
Next question, can i eliminate the stupid ceramic ballast resistor by getting a coil with an internal resistor? will this causeany problems?
last, i have a wire off the engine harness that has no where to go. is this a ground? the coil, oil, and temp are all connected, and there is still one stray wire. its green, but its "new green" so htat may not be the right color. i assume it is a ground, but just want to be sure that the engine harness does have a ground wire...
thanks in advance...
electrical help - blazinchuck - 11-20-2011
take a couple pics Nick...that might help
electrical help - snipes243 - 11-20-2011
the little ceramic is a ballast resister and are general matched to the coil. cause general the coil takes less voltage. If your running the stock coil your gonna wanna keep it.
electrical help - broncosbybart - 11-20-2011
Pics would be most helpful. I don't know why you have a ballast resistor in your harness. Ford designed their harnesses not to have them, but it still drops the voltage to 6V at the coil. Sounds like something was 'redone'. Either way, you need 6V to the coil or else it will have a very short lifespan. you can find aftermarket coils designed to run off of 12V, if you want to go that route.
electrical help - Crawdad - 11-20-2011
If you need some pics let me know. I can send you some.
electrical help - scbronco - 11-21-2011
havent had a chance to snap any pics, ill get them tomorrow though. thanks for the interest!
electrical help - firefighter2134 - 11-21-2011
yes you can eliminate the ceramic ballast resistor by going with at coil that has one internally. origianal ford wiring had a resistor wire running to the coil thus no need for a ballast resistor so if it has aftermarket wiring then you have to run one unless the coil has one built in.