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I am about to get my car started after 3 yrs of rebuild. its a 71 BB. The prior owner installed a petronix ignition box in the dist. It has two wires red and blk. I looked this up and the red goes on pos and the blk on neg of the coil. Were I am having problems is the dr rebuild wiring sheets show the yellow and blk wires going to the pos side of coil. The AIM I have (pg 180) shows the yellow and blk wire going to neg????? Whats up here, any one know the true wiring for the coil. I have a new wiring harness also installed. I am thinking the stock wiring should be blk wire from dist to neg side of coil. the yellow and blk wire from cable harness goes to pos. Is that all that goes to coil?? Is this correct?
I have a 71 SB LT-1 with transistorized ignition. Replaced the ignition harness with one from Lectric. Also bought the oOSOEZ wiring charts from Dr. Rebuild--they are great. According to my 1971 chart the black goes to coil positive with yellow wire from that going to starter solenoid. My tranisitorized has black to neg and white to pos. I also had a petronic system on the car--dumped it for the original TI system.
My 1971 corvette assembly manual, page 414, shows black going to positive and white to negative.
You said you have a BB? Which one? An LS-6 (454/425hp? If so it should have a TI system. Maybe Bubba did the samething as on my car and replaced it with a petronix. If you have a LS-5 engine (454/365hp) then it would have the regular coil and wiring.
I have the LS 5 with standard ignition. Do you know the hookup for that?? I believe the two wires that are joined together at the contact (Yellow and blk wires) go to positive side of coil. The blk wire from dist goes to the negative side of coil?? I believe that is it.
The only thing my chasis service manual shows is: yellow from neg coil to starter connected 20 gauge W-R/B wire from the neg coil to the fusebox. The other wire runs from the distributor to the positive coil--gives no color.
I think that bis wrong! thats what my AIM shows but is opposite of the Dr Rebuild ez diagram. I cant see neg going to fuse box then coil then starter??? I would think this is positive ??? This is what has me confused??????????