An expensive non-test drive...

Discussion in 'General Technical Discussion' started by Kristian, Jan 7, 2008.

  1. Kristian

    Kristian Leaving Skid Marks

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    Hi guys,

    Hotwire (Lee) came round to my place yesterday to test drive one of the Legnums sitting in my driveway, and with a flat battery, the one I was using for test drives needed a jump start.

    I was chatting away to Lee and his lovely wife while I was doing it and so I failed at Jump Starting 101 - hooked up positive to negative and presumably have now blown the fusable link, rooted the alternator etc etc.

    I know a few of you guys have had this happen to your cars coming in from Japan - what did you need to do to fix it? Luckily I have another Legnum I can pilfer parts from temporarily.

    Cheers
    Kristian
     
  2. snickells

    snickells Leaving Skid Marks Lifetime Member

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    (shakes head)

    Jeez Kris.. you really droped the ball mate! :p Any chance it's just the alternator? Surley a rebuild wouldnt cost the earth. Although, getting it out might be the pricy part.
     
  3. bradc

    bradc 1 AYC Bar

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    hmm I'm guessing it doesn't start at all now? Does it try and turn over with another battery? What about lights and stuff on the dash?
     
  4. Kristian

    Kristian Leaving Skid Marks

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    Nah starts up fine, so the computer's all in tact, but dies as soon as I remove the jumper leads.
     
  5. Hotwire

    Hotwire 1 AYC Bar

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    It started with another charged battery connected, but once removed car died :( So was not charging itself AT ALL

    EDIT: Kristian beat me to it
     
  6. Guest

    Guest Unregistered

    damn! lucky my test drive went alot smoother then! lol.
     
  7. Guest

    Guest Unregistered

    you've probabilly just killed the battery,
    the car wont run with a dead battery...
    you may have caused it to colaspe a few cells or all together...

    they wont run if the voltage goes below 10.5v ish.

    even if the alt is fine, and the battery is stuffed, it wont keep going.

    put in a known working one to test it with,

    once started use a multi meter acrcross the + and -,

    should be about 13.5v ish

    ive done the backwards battery in mine,
    replaced a few fuses, my main 120 or is it 110? amp fuse went,
    replaced it and all was fine.
     
  8. mallen

    mallen Leaving Skid Marks

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    SLY-031 (Joel) Paid $665 for his alternator recon - Ouch!

    This is his breakdown of the cost...


    $320 labour (charged 4 hours instead of 5-6)
    $345 for alt recon.

    thats from Blackwood Dyno tune.

    Good luck mate...
     
  9. Fred

    Fred Leaving Skid Marks

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    i done that once, it collapsed a cell in the battery, thus not allowing it to hold any charge...i'd replace the battery first, and if that don't work, check the main fuse, as all current should pass through that first ( unless cranking...i think)....hope that helps...
     

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