chain to belt?

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  • #6061
    philpassingham
    Participant

    is it possible to swop over to belt drive on a std b1 engine

    #13640
    Kaptainkwak
    Keymaster

    Simple answer to that philpass is no. This is because of the frame where the belt would pass through. On the K models the leg is wider to accommodate the belt.

    #13636
    philpassingham
    Participant

    Not using a b1 frame,I have a cunning plan

    #13637
    philpassingham
    Participant

    Not using a b1 frame,I have a cunning plan

    #13641
    Kaptainkwak
    Keymaster

    So are you asking if the front sprocket from a belt drive will fit on a B1 shaft?

    #13638
    philpassingham
    Participant

    U mmmmmmmmm, yes

    #13642
    Kaptainkwak
    Keymaster

    OK.

    I have not tried this but I have looked into it in some detail. I can confirm the spline on the belt drive front pulley and the front chain sprockets are the same. The rear pulley will fit to a chain drive sprocket hub. I do believe the rear hubs are interchangeable.

    My main reason for not being 100% sure is that the final drive shafts for the B and K models have different part numbers. I don’t know why this is but can’t see why that would cause a problem.

    #13644
    Michael
    Participant

    Guys,
    belt sprocket will match the shaft, but shaft is longer and there is a different (longer) spacer used.

    But it will not work !!!

    Think about the clutch pushrod of the earlier engines.
    There is no space to fit the pushrod and the front belt pulley.

    It might be possible to swap the clutch actuator to the one that is used at the BD-models (swap clutch engine cover and some more and internal parts).

    E.g. you will need the drive shaft cover of a BD to close the hole which is used for the pushrod.

    Here is a pic how it looks like at a BD-model:

    #13643
    Kaptainkwak
    Keymaster

    Hi Muchael

    Thank you for your reply and knowledge. I did ring Philpass last night to discuss the issues most of which is in your reply. However you have now explained the different part number for the final drive shaft. Thank you again for sharing your knowledge.

    #13639
    philpassingham
    Participant

    Cheers all

    #13645
    Michael
    Participant

    Your welcome 😉

    Sure I will pass on my knowledge and experience. There is no reason why I should keep it as a secret.

    Cheers, Michael

    #13646
    jett
    Participant

    This forum rules.

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