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Thread: Alternator issues

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    Alternator issues

    I have searched the forums and have not found my issue,

    I have just replaced my TD42 alternator with a 100amp one, the car has been set up to bypass the original charge fuse and has been replaced with a single cable from the back of the alternator through a fuse and straight onto the battery. (not my doing)

    All I did when I replaced the alternator and a thicker wire and 120amp circuit breaker. the alternator came with a plug that fit the original also.

    The issue I am having is that after 5 minutes or so, I am tripping the breaker... now that could be on revs or not on revs. I cannot seem to source a short in the wiring and all earths are brand new and tight.

    Getting 13v at idle and 14 above about 1200RPM

    I am lost as to what is happening and hoping someone can shed some light.

    Also I am running an Optima blue top AGM battery (which I don't think should matter?)
    Last edited by cmacp5; 21st September 2015 at 12:16 PM.

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