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  • #39912
    boycey
    Participant

    Many thanks for this. I believe I have ruined a perfectly good set of plates!
    However the problem was definitely in the clutch. You could hear a metallic gratingf noise `nd the drive pulley to the V belt would stop turning. I am guessing it was a combination of the birrs and the wear to the metal counter-plates that was causing it, and simply cleaning those up would have done the trick!
    I have managed to find a set of used plates on ebay but they are in pretty poor condition. Probably worth a try though.
    And yes i will keep my eye out for a donor machine!
    Thanks all for all your input, much appreciated. I wish I had asked the question before starting the job!

    #39906
    boycey
    Participant

    I’ve just remeasured more accurately and there is still a nagging question…
    Withe the 10 intermediate plates slipped on the shaft, there remains 12mmm of spline shaft exposed. The friction plate metal is 0.95mm each
    .95×11=10.45
    12-10.45 = 1.55mm
    1.55/22 (for the 22 friction pads) =0.07mm and this would have to be the maximum thickness of each friction pad for all 21 parts to fit on the shaft. This cannot be correct surely? This is less than 3 thou!!
    There is no way change the assembly , it’s pretty simple (see attached drawing). Part numbers 9, 14 and 15 all have to fit on p/n 8
    Any thoughts?

    • This reply was modified 2 years, 8 months ago by boycey.
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    #39905
    boycey
    Participant

    That’s a great help, thank you. I noticed the burring of the ears and filed those clean, but will need to check the cage next time I’m up there. It sounds to me as if I have relined some perfectly serviceable clutch plates in error! i have searched high and low for replacement plates but they are just not available anywhere. Ransomes stopped making them years ago. There was probably no demand as it seems the clutch plates themselves didn’t wear out!
    I’m now wondering if I can remove some friction material from the 22 sides to get them down to size? Probably a long job and difficult to keep them perfectly flat….

    #39899
    boycey
    Participant

    Trying again!

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