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  • OT Cambelt change

    A friend brought a bike across today for a cambelt change.

    Knowing that another friend is about to do his too, the process was recorded.

    The Morini 3 1/2 is a pushrod V-twin, but the cam is belt driven.

    People are often doubtful when I tell them the belt can be changed 20 minutes, but that's not even pushing it.

    http://youtu.be/sbNmHYxt3qM

    http://youtu.be/VDudeIFNmSI

    http://youtu.be/TRGUB3hesTk

    http://youtu.be/2cR_g8tW_XI
    Paul Compton
    www.morini-mania.co.uk
    http://www.youtube.com/user/EVguru

  • #2
    So you had nice weather yesterday, did you ? We had to wait for today. Took the Bonnie out today though, to prove it.

    Nice job. So for the second chap that needs it done, you're just going to give him the link and tell him to get on with it himself ?
    Richard - SW London, UK, EU.

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    • #3
      Thats's the first time I have seen what I presume is a push rod engine with a timing belt! Any others out there?

      "Split the belt" - that's a clever idea!
      Last edited by Peter S; 05-14-2012, 01:57 AM.

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      • #4
        Originally posted by Peter S
        Thats's the first time I have seen what I presume is a push rod engine with a timing belt! Any others out there?
        Not as far as I know. You can get conversion kits for some car engines (X-flow and A-series for example). The Morini Riders Club has access to a sectioned engine which we often have on display at shows and this year in particular a lot of people were asking if the belt was a standard feature.

        Franco Lambertini designed the modular 1970's V-twin range and often did things very differently. Morini had limited funds available and Lambertini was a master at coming up with ways of keeping costs down with little compromise on performance. When Morini were resurected in recent years Lambertini designed the new 1200cc Corta Corsa engine and again it's full of unusual features.

        "Split the belt" - that's a clever idea!
        It's probably nearly as old as the use of timing belts. They were used elsewhere before engines of course. I've seen a mechanic split the belt with the engine running!
        Paul Compton
        www.morini-mania.co.uk
        http://www.youtube.com/user/EVguru

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        • #5
          Thanks for sharing those videos Paul.
          I love watching bike wrenching stuff.
          I could have used the belt splitting idea yesterday when I changed the belt on my VW. This one goes 'round 3 pulleys and a tensioner and got out of time by one tooth so I had to do it twice.

          I just got the old belt out and found it cuts quite nicely with a box cutter.
          Mike

          My Dad always said, "If you want people to do things for you on the farm, you have to buy a machine they can sit on that does most of the work."

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