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Thread: correct s1 dynamo

  1. #1
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    correct s1 dynamo

    hi all,

    getting closer to getting my 86 back on the road and at the fiddly stage.

    My dynamo seems to have an extra terminal. The marked D & F posts result in a low 6-7 volt reading on the multi meter and dash light on.

    There is an extra un-marked post on the RHS (see pic) which records 16-17v. Is this off a similar vintage vehicle but not LR S1? Should I just connect to the higher voltage post and leave the regulator to charge battery appropriately?

    Cheers

    Dane
    dynamo.JPG

  2. #2
    JDNSW's Avatar
    JDNSW is offline RoverLord Silver Subscriber
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    Jan 1970
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    I can find no reference to any Lucas dynamo with more than two terminals, but it looks to me that I would move the D lead to the other terminal and see how it goes. It should have a model number stamped on the body somewhere. I think the Series 1 had a C39, although I can't confirm that. Series 2/2a I believe had a C40. Either would work on the S1.

    John
    John

    JDNSW
    1986 110 County 3.9 diesel
    1970 2a 109 2.25 petrol

  3. #3
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    thanks John,

    Will give this a go over the weekend. Lots of layers of paint I think on it so may be a bit hard to pick up markings but will look for these too.

    Cheers

    Dane

  4. #4
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    Series I (petrol) C39
    Series II (petrol) C39
    Series IIa C40

    Both versions will suit all three vehicles. You may need to change the wiring terminals though.

    Aaron.

  5. #5
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    Aug 2008
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    latrobe valley victoria
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    c32pv2Lo on mine {1955}

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