Trying to find my way back home, wiring-wise. My '57 Effie has a '60 cab with stock ignition, been following a wiring diagram from a '62 truck manual (closest find). Descriptions match up except: my aftermarket ignition unit has a center post, Battery, Ignition, Accessories. The diagram B & A as well, with S (starter?) and C. What do S & C stand for? Thanks for any help. It's complicated, of course, by newer replacement wires, and a '70-something Caddilac power steering column with a worn out wiring harness imported by previous owners years ago. Weaving my way through the spaghetti...
BTW, a**** the online manuals that've been helpful is www.tocmp.com, though trucks weren't listed. Just trying to figure out those two abbreviations on the iginition.
I think you are makin it harder than it is. What aftermarket ignition are you using? Are ya just trying to make the engine run?? What engine application do you have in the truck. Glad to help.
A picture of the switch would help. You could put 12 volts to the batterry terminal and use a voltmeter to check the other terminals while you turn the key. You should have start, run, and accessory. My guess would be A= accessory, B= battery, and C= Ignition run. If it is correct C should be hot during start and run because you need 12 volts to the coil during cranking, but hard to guess unless you test the switch.
Try "S" for solenoid and "C" for coil, Ford used a remote solenoid and some had a 12 V jumper that fed the coil during cranking only . The coil wire should be a resistance wire that drops the voltage to 6V. while running .
http://geocities.com/flipthekid/falcon/wiring2.html S is for starter on this diagram. early falcon. doesn't show a C, but the diagram might come in handy anyway. gary
It was a Car Quest universal starter switch unit, fits into the stock on-the-dash application. Then, wondering if the unit was fried, I replaced it with a Conduct ***e unit, but same results. When I wire test it, only the battery shows power, Accessories has power when turning it to the left (accessories-only side). Motor's a 390 out of a '69 Ford, but the wiring is from its '60 cab. For now, i'm trying to get the motor started up 'n running again, thanks for the help, GMC. In a way, I might be making it harder than it needs to be, but after having to replace alot of the other wiring and getting really turned around... well, yeah. Hey Crusty, will give ya a ring, some 'Draggers will be over later to help, too. Might get to meet the newest member, and/or the acquired Cadillac. Thanks again for the online flashlight, guys.
Much thanks to Crusty Nut cruising by to help, today. I call him the Sanity Patrol: he's got a nack for timing, when yer just about to lose all your patience, you hear that flatty motor come up yer driveway. Tried this and that. Didn't work, but got more of the old wiring chaos straightened out. Sorta. Then went to a car show prep party/bbq of new friends, QUICKLY got hooked up with parts & advice: "Randy over here's the Ford guy, gotta '57 Ranchero.." "Y'know, sounds like you actually need a Ballast Resistor, that's normally a Dodge-thing. Andrew there's a major Dodge guy." "Yeah, I've got resistors, can drop it off at your Work, tonight." "Call me up tomorrow if you need help," (the bbq's 5 blocks from my 'hood). Just stoked, fueled by new friends. Can't wait to get more connectors and give it a whack, tomorrow/today, though deadline's even closer.