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Thread: I'm stuck... alternator/wiring/starting/?

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  1. #1
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    Question I'm stuck... alternator/wiring/starting/?

    Note: I did cross-post this to Triumph Experience as well but I'm out of ideas...

    I'll add pictures later tonight.

    2 things I did:
    1.) Moss Alternator replacement for the generator
    2.) Wizard Radiator/Fan combo

    I've removed the fan electric from consideration right now to focus on the core problem.

    first:
    switched from positive to negative ground.
    new positive terminal to starter solenoid lead. pretty easy swap. just flipped the battery around. have verified with a battery tester (Black and Decker charging) that the battery is at full charge.

    second:
    generator to alternator replacement. all good here and I DID NOT replace the generator wiring ends on the alternator side (moss provides a spade + plastic box kit)

    third:
    i followed the direction explicitly. I've removed the replacement lucas terminal and have the following wires:
    green/blue, green/yellow, and yellow --> all connected to the same terminal post (easiest way to test connections)
    original ground (black) is disconnected and now off to the side and not attached to anything
    yellow/red (16/18awg?) is butt-connected back to the yellow lead.

    Wiring.JPG is current state.
    test wiring.JPG was using a press in connector for testing.

    first test:
    when i FIRST tried to test, the dash ignition light came on and the starter button worked. there was a SPARK from the positive terminal. engine did not turn over.

    second test:
    I forgot to change the leads over on the ignition coil so, I did that, made sure all the wiring connections were solid and...no light, nothing.

    I'm stumped.

    any ideas how to test? I do have a Fluke 80 that I can use to test wiring though, at this point, I'm really unsure as to what I'm going to be testing...I'm stumped.

    HELP!!!!I'll add pictures later tonight.

    2 things I did:
    1.) Moss Alternator replacement for the generator
    2.) Wizard Radiator/Fan combo

    I've removed the fan electric from consideration right now to focus on the core problem.

    first:
    switched from positive to negative ground.
    new positive terminal to starter solenoid lead. pretty easy swap. just flipped the battery around. have verified with a battery tester (Black and Decker charging) that the battery is at full charge.

    second:
    generator to alternator replacement. all good here and I DID NOT replace the generator wiring ends on the alternator side (moss provides a spade + plastic box kit)

    third:
    i followed the direction explicitly. I've removed the replacement lucas terminal and have the following wires:
    green/blue, green/yellow, and yellow --> all connected to the same terminal post (easiest way to test connections)
    original ground (black) is disconnected and now off to the side and not attached to anything
    yellow/red (16/18awg?) is butt-connected back to the yellow lead.

    Wiring.JPG is current state.
    test wiring.JPG was using a press in connector for testing.

    first test:
    when i FIRST tried to test, the dash ignition light came on and the starter button worked. there was a SPARK from the positive terminal. engine did not turn over.

    second test:
    I forgot to change the leads over on the ignition coil so, I did that, made sure all the wiring connections were solid and...no light, nothing.

    I'm stumped.

    any ideas how to test? I do have a Fluke 80 that I can use to test wiring though, at this point, I'm really unsure as to what I'm going to be testing...I'm stumped.

    HELP!!!!
    Attached Images Attached Images

  2. #2
    Luke Skywalker
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    Re: I'm stuck... alternator/wiring/starting/?

    Did you switch the leads on the ammeter? I think that is polarity dependent.
    Tom
    1960 TR3A TS73117 (under endless restoration, owned since 1964)
    1959 TR3A TS58023 (in case I never finish the one above)
    1969 Triumph Herald 13/60 (a whim)
    1970 Lotus Elan Plus 2 /0023/N
    1992 BMW325IC (fun to drive)

  3. #3
    Great Pumpkin TR3driver's Avatar
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    Re: I'm stuck... alternator/wiring/starting/?

    I think I read on TTE that you got this problem resolved.
    Randall
    56 TR3 TS13571L once and future daily driver
    71 Stag LE1473L waiting engine rebuild
    71-72-73 Stag LE2013LBW waiting OD gearbox rebuild

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