atlas cam chain adjuster plates

Discussion in 'Other Nortons' started by seattle##gs, Nov 27, 2017.

  1. seattle##gs

    seattle##gs

    Joined:
    Oct 28, 2014
    These have a long end and a short end. I placed both witth the long end on top, I believe if otherwise they hang up on the adjuster foot. Correct? If incorrect will this be a problem?
     
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  2. texasSlick

    texasSlick VIP MEMBER

    Joined:
    Jan 2, 2013
    Ref: Norton Owner's Manual

    "The thinner of the two clamping plates goes on first with the long end down, followed by the tensioner and the thicker plate with long end up."

    Set camshaft chain tension so there is 3/16 in. minimum up and down movement in the center of the chain run.

    Slick
     
  3. annajeannette

    annajeannette

    Joined:
    Sep 5, 2014
    your feels on this are right one plate looks downwards long end
     
  4. seattle##gs

    seattle##gs

    Joined:
    Oct 28, 2014
    I have 2 plates the same thickness. I placed them both long end up. Could not see that the inside one made any difference. Please enlighten me.
     
  5. texasSlick

    texasSlick VIP MEMBER

    Joined:
    Jan 2, 2013
    I quoted my Norton Owner's Manual verbatim. There was no further explanation.

    From memory, there is not much difference in thickness of the two plates. The thinner plate going on first would give some extra clearance to keep the chain side plates from rubbing the tensioner vertical side. If you did not find any such rubbing, you probably can ignore the directive to put the thinner plate on first.

    Regarding "long side up ..... long side down": If you have your timing cover off, you can best see if flipping one plate makes any difference. I can offer no explanation why Norton wanted it that way.

    Slick
     
  6. seattle##gs

    seattle##gs

    Joined:
    Oct 28, 2014
    Thanks for the info. I see the reason for positioning the outside plate with the long end up because the adjuster foot would come in contact with the plate and limit travel. But the inside plate position doesn't seem to make any difference...So I ask this forum to see if any one knows the secret.
     

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