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Thread: Speedo Transducer condition

  1. #1
    Join Date
    Oct 2007
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    Speedo Transducer condition

    Hi All,

    I have intermitant speedo issues once at highway speeds eg, 100km/h or more where speedo will have a fit for a little bit then go back to normal. Since this has started my cruise no longer functions.
    All hoses are fine on the cruise so I thought first I'd pull out the speedos transducer to have a squiz of its condition but once I got it out I wasnt sure what its supposed to be like anyway....

    My question is, does the black round centre with the gear drive in it float about in the external housing as factory or is mine caput? It looks like it needs some form of grease?

    It wont pull out but it seems to have alot of sideways play in its housing.

    Any feedback appreciated.

    Cheers,
    Rez

  2. #2
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    Oct 2007
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    Anyone know whether the centre is supposed to float in the housing with a fair bit of play?

  3. #3
    Join Date
    Apr 2010
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    Hornsby NSW
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    I read somewhere on a UK forum that the center of the drive is supposed to be square but end up round after wearing out which results in the erratic speedo. I 'll see if I can find the post.
    Cheers
    Mark

  4. #4
    Join Date
    Apr 2010
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    Hornsby NSW
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    Found the post

    Disco 1 speedometer - Land Rover Zone

    Re: Disco 1 speedometer
    Just to update - took the transducer out this evening and discovered that the short square bit that locates in the drive in the transfer box had in fact worn round . There was a tiny bit left square in near the transducer which showed what the rest of it should be like .
    It was also loose and worn and no sign of lubrication - I would have thought oil from the transfer box would have kept it lubricated ?

  5. #5
    Join Date
    Dec 2008
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    blackbutt qld
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    Cruise control gets a signal from the speedo, so if the speedo stops, so does the cruise.

  6. #6
    Join Date
    Oct 2007
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    Drive is still square but the whole centre section seems to float in its housing more than I'd have thought is standard.

    The cruise no longer works at all even when speedo is working. Speedo works 90% of the time.

    Should it be lubed?

    I'm thinking I'll just buy another....

    Cheers,
    Rez

  7. #7
    Join Date
    Jan 1970
    Location
    Adelaide Hills. South Australia
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    ***** Word of advice when replacing the transducer.

    Make sure you get the alignment 110% correct before tightening the screw.

    To me, the angle is a bit confusing if you just bung it in & tighten it up, (look at it in your hand prior to fitting) especially as it is in an awkward position & I found a long flexible shaft extension is a big advantage in getting the socket/Allen key on the head.

    Fit it with care or you may have to buy another new one.


    Be warned.

  8. #8
    Join Date
    Oct 2007
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    Ok so for future reference, got the new part and it floats around in the housing just as much and is not lubed.

    Cheers,
    Rez

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