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dismantling engine - tiny rollers?

Discussion in 'XJ Technical Chat' started by bensalf, Feb 9, 2021.

  1. bensalf

    bensalf Well-Known Member

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    hi all ,
    i'm dismantling my spare engine , and i'm going to rebuild it , to replace the one i'm using now.
    so far i've got the head , barrels, and pistons off, also clutch and plates off
    i'v took the sump plate off to inspect internals, and found 3 of these tiny rollers in the sump - stuck to the plate
    IMG_0777.JPG
    at first i thought they were from the clutch release bearing, but checked it and they are all there, so i placed one of the rollers onto the release bearing, and it looks pretty close to those rollers
    IMG_0779.JPG
    maybe it has come from a previous failure ,before i got the bike.


    my question is , are these tiny rollers used anywhere else in the engine?
    ive got the engine turned the right way up now ,to see if any more fall out
    thanks
    stu

    p.s. spare roller is at 3-o- clock position, in 2nd photo
     
    bensalf, Feb 9, 2021
    #1
  2. Franz

    Franz Well-Known Member

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    Is there a needle roller bearing on any of the gearbox shafts? Probably have bigger pins though.
     

    Attached Files:

    Last edited: Feb 9, 2021
    Franz, Feb 9, 2021
    #2
  3. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    The are from a clutch release bearing, the old one that failed before you got the bike.
     
    k-moe, Feb 9, 2021
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  4. bensalf

    bensalf Well-Known Member

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    yep , good , thanks K-moe,
    found another 2 in the filter screen, thats 5 altogether,
    think i need to have a thorough check , as far as i can see inside.
     
    bensalf, Feb 9, 2021
    #4
    k-moe likes this.

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