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Rocker Ball

Home Forums TR3OC Members Forum Rocker Ball

This topic contains 4 replies, has 2 voices, and was last updated by  David Cowan 2 weeks, 4 days ago.

  • Author
    Posts
  • #9390

    David Cowan
    Participant

    Can anyone advise me on a repair/replacement of the small ball pin that fits in to the push on the rocker arm.

    I was putting the rockers on and found the engine locked at a certain point each time I tried to turn it over, it turned over fine until I tightened down the bolts then it would lock again, thinking I was a tooth out on the valve timing I removed the gears and started again, however when I removed the rocker covers I found that one of the ball pins that fit in to the cup was sitting on top of the push rod, can this be repaired (and if so how) or am I better buying a complete rocker and replacing?

    Appreciate any help.

     

  • #9391

    Martin Rawson
    Participant

    Hi the ball pin is a press fit into the rocker arm and therefore should not be able to drop out. They are easily replaced but you need to establish if it’s the hole in the arm or the pin that is worn.

    Check the push rods are not bent by rolling them on a flat surface.

  • #9392

    David Cowan
    Participant

    Thanks Martin,

    The old one wont press back in that is why I was wondering if it was better to renew than try and fit the old one back in, it seems a nice fit until you get to the part that holds it in place it just doesn’t want to clip in.

    Push rods are ok

  • #9424

    Martin Rawson
    Participant

    Replace then. Note the early bikes had a smaller diameter ball end so ensure you get the right size for your machine.

     

  • #9429

    David Cowan
    Participant

    Thanks Martin

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