replacing generator with alternator

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This topic contains 10 replies, has 6 voices, and was last updated by  kid442 3 years, 10 months ago.

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  • #11220

    joemo
    Participant

    Can anyone recommend an alternator to replace the generator in my 62 Cutlass convertible? Is this a relatively easy replacement?

    #11221

    62cutlassconvert
    Participant

    I know D&D has wiring and alternators. Keeping my gen for now but don’t think it’s much to change. Probably a std alternator, diff brkt, and a wiring pigtail. Someone here has done it for sure or check the classicoldsforum

    #11222

    macf85
    Participant

    G.M. switched to alternators in 1963. Getting a bracket for a ’63 F-85 would be the easiest thing to do without having to modify anything. Then you could get a rebuilt alternator for a ’63 and splice in your aftermarket wiring harness. You’ll have to check pulley alignment with the crank pulley, etc.

    #11223

    joe_padavano
    Participant

    [quote quote=11222]G.M. switched to alternators in 1963. Getting a bracket for a ’63 F-85 would be the easiest thing to do without having to modify anything. Then you could get a rebuilt alternator for a ’63 and splice in your aftermarket wiring harness. You’ll have to check pulley alignment with the crank pulley, etc.[/quote]

    This is exactly what I did on my 62. The 63 alternator bracket bolts right up. I initially used a 12SI that I had laying around but later went to a CS130. It’s been working fantastic for nearly five years now.

    #11224

    62cutlassconvert
    Participant

    I think M&H Electrical Fabricators (the repro wiring harness people) have a conversion pigtail too.

    #11226

    joe_padavano
    Participant

    It’s extremely easy to wire an internal-regulator alternator without buying an aftermarket pigtail. The two wires from the generator to the old regulator go away (mine were melted anyway). The brown wire from the GEN light goes to terminal #1 on the 12SI or the “L” terminal on the CS130. Run a wire from terminal #2 on the SI or the “S” terminal on the CS to the junction block for sensing. Run a heavy gauge wire from the threaded BATT terminal to the junction block for the main charge wire. Finally, the CS family is sensitive to the ground path, so I always run a ground strap from the aft frame of the alternator to the block. That’s all that’s required.

    #11227

    joemo
    Participant

    Thanks for all the information. I want to get this done soon so I can finally drive the car at night. I drove it twice with the lights on and could not restart the car.

    #11368

    bstang
    Participant

    Anyone know where I can find a 63 bracket?

    #11382

    macf85
    Participant

    If no-one on this site has an extra one you’re probably going to get one from a salvage yard or swap meet. You could start with Desert Valley Auto Parts. They have lots of early model cars from the dry-arid part of the U.S. I’m sure there are other salvage yards that deal nationally.

    Good luck.

    #11384

    bstang
    Participant

    Thanks

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