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Headlight bracket has movement up and down.

Discussion in 'Norton Commando Motorcycles (Classic)' started by Rhys, Apr 17, 2018.

  1. Rhys

    Rhys

    Joined:
    Apr 6, 2015
    Hi all, after having work done on the front suspension of my 1974 850 Commando l had a knock in the front suspension.
    On investigation I have found that the left side headlight mount has about 2-3mm of up and down movement, after looking at many exploded diagrams and reading of manuals I have still not worked out how to tighten the assembly, can anyone advise me of how to do this ?
    Of course I’ll talk to the shop that did the work but I have a ride with my club on Saturday 21/4 18 to the All British Rally in Victoria Australia and I’d like to fix this so I can go, I also want to understand and do more myself.
    Thanks in advance for your advice, Rhys.
     
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  2. kommando

    kommando

    Joined:
    May 7, 2005
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  3. L.A.B.

    L.A.B. Moderator VIP MEMBER

    Joined:
    Nov 20, 2004
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  4. Rhys

    Rhys

    Joined:
    Apr 6, 2015
  5. Mr. Rick

    Mr. Rick VIP MEMBER

    Joined:
    Feb 6, 2009
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  6. kommando

    kommando

    Joined:
    May 7, 2005
    The yokes should be hard against the bearing inners both top and bottom, if the nut on the bottom has been torqued up correctly before the tab washer was rolled over then it should be ok. So unpeel the tab washer and apply the torque listed in the manual 30 ft/lbs.
     
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  7. L.A.B.

    L.A.B. Moderator VIP MEMBER

    Joined:
    Nov 20, 2004
    Slacken the lower yoke 'pinch bolts ' (Allen screws) '44' first, before checking the tightness of the stem nut. As it's only the left-hand bracket that's loose then it does sound as if one or more O-rings are missing on that side.

    The 'exploded' nature of the parts diagram has led some to believe the O-rings fit inside the bracket tubes which isn't correct.
     
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  8. cliffa

    cliffa

    Joined:
    May 26, 2013
    Hi Rhys, I posted this on another thread, but it's well worth doing while you have it stripped anyway...

    The headlights brackets (aka ears, (although they look more like noses to me)) on my bike making an awful racket as the O-rings were shot. I ordered new rings, and stripped the front end. When I looked at the fit between the brackets and the stanchions I realized why the O-rings fail. The bracket tubes are quite a loose fit so must still move about. So I looked for something suitable to shim them. In the bin I found a plastic TV dinner container, and cut it into strips about 25mm wide, and long enough to wrap around the stanchion minus about 1/4". The container plastic was different thicknesses at the bottom sides and ends, so I shimmed each end of each bracket choosing different strips until I got a nice sliding fit on the stanchion. Then applied contact adhesive to the back, inserted it into the tube, (not bridging the seam weld inside) and pushed it over the stanchion and left it till it dried. Did the same on the other three, and put it all back together. The difference was amazing!





    I also found that assembling everything onto the bottom yoke then lifting it into position was far simpler than trying to assemble everything in situ. If you can get somebody to place the lockwasher on and start the bottom nut when you have the fork assembly in position it makes it very easy.


    Hope this helps,


    Cheers,

    cliffa.
     
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  9. batrider

    batrider

    Joined:
    Aug 9, 2008
    As a temporary fix.... dental floss or waxed (wire bundle) lacing cord wrapped around it a few times
     
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  10. nortonmews

    nortonmews

    Joined:
    Nov 20, 2015
    Hi,

    I had the same problem and made up some cork washers that I placed under the top yoke and were compressed by the 'ears'- no more rattles and all but invisible. I may have picked up the idea on this site.
     
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