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VK Speedometer

Discussion in 'VB - VK Holden Commodore (1978 - 1985)' started by bfhoon, Jan 14, 2019.

  1. bfhoon

    bfhoon Member

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    G'day

    My speedo has never really worked any good use to pretty much go to 60 and then that was it but now it is jammed at 70 doesnt even move with the car off. The kilometres and trip meter seem to work fine and accurate still. What could the issue be? Its plugged in at the back of the speedo.
     
  2. gtrboyy

    gtrboyy Well-Known Member

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    speedo needle or dial damaged/bent when odometer clicked back...

    gumtree/fb marketplace for a cheapie
     
    Smitty likes this.
  3. Lacksballs

    Lacksballs Active Member

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    Take it out and pull it apart "GENTLY" there's not much in them to go wrong. Chances are you'll see a stripped gear or broken spins.

    Good luck
     
  4. bfhoon

    bfhoon Member

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    From the gearbox end or speedo end/
     
  5. VK SL 3800

    VK SL 3800 Well-Known Member

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    The odo is pretty much separate to the speedo needle, the odo is a physical drive but the needle is spring loaded to 0 and the cable spins a magnet and trys to pull the needle around against spring pressure.

    Id say the spring has broken and jammed the needle up.
     
  6. Lacksballs

    Lacksballs Active Member

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    The speedo in the instrument cluster is what you need to remove & disassemble
     
  7. bfhoon

    bfhoon Member

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    Darn I only had it out a month ago dont feel like pulling it out again what a pita. Ill just replace the whole speedo im not mucking around with that fiddly thing done one years ago very annoying
     
  8. tml678

    tml678 Well-Known Member

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    Good point, at a guess I'd say the speedo cable..but probably better to change the whole thing. Let bus know how you go.
     
  9. VDO

    VDO New Member

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    Pretty sure the problem will be wear. the drag cup spindle bush and/or the cradle bush have worn to the point where they lose the close tolerances and bind the drag cup and magnet.

    That's usually the fault in this type of problem, and requires a full rebuild of the speedo.
     
  10. 1985VK

    1985VK Active Member

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    So if the odo is a physical drive and if it was not working then it would be a broken gear at fault?
     

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