Advice Please

Discussion in 'Vintage Classics' started by wan, Sep 30, 2024.

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  1. wan

    wan New Member

    Oct 8, 2021
    12
    3
    yorkshire uk
    #1 wan, Sep 30, 2024
    I have aquired an old bike which is apparently a 1967 6T ex police machine the engine is from a t120 dated by engine number to 1970 ,not a problem as matching numbers not a problem as i remember the days when no one cared.However the speedometer drive is from the gearbox? still not a problem but it needs a new drive cable the present one is approx 4 feet long not as long as the wheel drive ones so does anyone have advice please
     
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  2. Eldon

    Eldon Crème de la Crème

    Nov 14, 2018
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    #2 Eldon, Sep 30, 2024
    Simple answer is I don't know, but Venhill provided me with a +20mm longer pair of throttle cables to fit 765 handlebars on a 675.
    I'd give them a ring and ask what options they could offer?
     
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  3. speedrattle

    speedrattle Senior Member

    Feb 19, 2021
    1,182
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    appalachia usa
    #3 speedrattle, Sep 30, 2024
    where are you located? shouldnt be too gard to source one of tbose.
     
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  4. wan

    wan New Member

    Oct 8, 2021
    12
    3
    yorkshire uk
    #4 wan, Sep 30, 2024
    West Yorkshire,have you come across gearbox drive speedometer on a unit construction bonneville before?Do you think the old ones for pre unit models would fit cheers
     
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  5. MightyBoosh

    MightyBoosh Senior Member

    Mar 29, 2023
    517
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    Uk
    #5 MightyBoosh, Sep 30, 2024
    Get yourself onto triumphmotorcycle forum and see if you can track down lron. He's pretty clued up on the leaky shakers :)
     
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  6. darkman

    darkman Crème de la Crème

    Oct 26, 2015
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    #6 darkman, Oct 1, 2024
    Police bikes used the chronometric speedo so would have probably had the gearbox drive casing from 63 to 65 and when the engine was changed in your bike they used the early outer gearbox casing on the 70 engine. Do you have a chronometric or magnetic speedo ???
     
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  7. wan

    wan New Member

    Oct 8, 2021
    12
    3
    yorkshire uk
    #7 wan, Oct 1, 2024
    Thanks for your input Darkman not sure which i will try to post photo but im not great on this tech IMG_2624.jpeg
     
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  8. darkman

    darkman Crème de la Crème

    Oct 26, 2015
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    #8 darkman, Oct 1, 2024
    You have a magnetic speedo, not correct for a police bike but correct for a 67 bike. There are two cables listed for your bike, one is part number 60-0542 that is 44 inches long and 60-0543 that is 40 and a half inches long.
     
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  9. wan

    wan New Member

    Oct 8, 2021
    12
    3
    yorkshire uk
    #9 wan, Oct 1, 2024
    Many thanks for your wealth of knowledge at least i now know what im looking for. Cheers
     
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  10. speedrattle

    speedrattle Senior Member

    Feb 19, 2021
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    #10 speedrattle, Oct 2, 2024
    how strange. id never heard of retrofitting the gearbox drive to a later motor.
     
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