hey i did a search, but i couldn't find anything simple enough. i'm trying to wire my car just enough to start the engine. i have a 12 v negative grounded flathead. i have a 12 v starter, a gm 1 wire alt., a mallory sbc dist. a coil, an electric fan and an electric fuel pump. the key switch has 4 terminals. a center term (unmarked), 1 marked batt., 1 marked ignition, & 1 marked, accessory. i know, i know my electrical knowledge is showing, but can't help that. any help would be appreciated. thanks rer_239
Big wire from Negative Battery to the engine block and ch***is. Big wire from the positive battery to the starter big terminal. Little wire from the positive battery to the key switch. Little wire from the key switch terminal marked ignition to the positive wire on the coil, the distributor, and a couple of relays for the fuel pump and fan. Medium wire from the alternator to the positive battery terminal. Oh and an output wire from the disty to the negative coil terminal. As my Dad would say "Do you want me to draw you a picture?"
Get yourself about 10 feet of wire with alligator clips on each end as a testing jumper. A little trial and error with this rig will save you labor later. ***uming the engine is mounted in the car with battery hooked up: The ignition switch terminals should be marked "Batt", "ACC", "ON" & "Start", if not then you need a meter or test lamps to figure it out. Batt is the input and the rest are outputs. ACC is key counterclockwise, ON is clockwise and Start is further clockwise. Then wire: 1. Battery + to BATT 2. "ON" to coil (+) and to fuel pump 3. Coil (-) to distributor 4. "Start" to small terminal on starter solenoid 5. Alternator (if self regulating) to the battery (+), OR if not then to the regulator (should be marked) then to the battery.
Thanks for this post! I used it today to turn over the mystery condition 305 in my 64 malibu superstock project. Just duct taped the ignition switch to my bare dash, wired as recommended and viola - turning over sweet and strong. The original wiring is so butchered I'm going to have to replace all of it. I'm shopping for a 283 to replace the 305, but in the meantime if I can get it fired and it starts and runs it'd sure be helpful just moving it around while getting a few other things fixed. Actually a good thing that it didn't start yet as it blew about a quart of oil out of a port in the intake right below the distributor- trying to figure out what fits there now... Possibly oil pressure sending unit?? hdh
so, inserted the oil pressure sender (the old one was broken(!) off which is why I didn't notice it at first. Then I put a Pertronix rotor and cap on the HEI, replaced the carbon black plugs, fixed the throttle linkage(that was sketchy the way it was rigged!), sprayed a little ether and boom, there goes the neighborhood. Sounded great for the few seconds it ran. Little louder than expected through the exhaust, but smooth. Since it started right up, I fed it a bit of fuel to be sure. No problem. We'll see how it really runs once a few other details are attended to. Need to clear out the fuel lines front to back and see if I can get it to flow. Since the tank had no cap and was dry when I bought the car, perhaps I'll be in for shaking some muck out of there. Braap!