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Chainguard snapping

Discussion in 'Norton Motorcycles (Modern)' started by Beefiddler, Jan 11, 2019 at 8:53 AM.

  1. Beefiddler

    Beefiddler

    Joined:
    Jun 4, 2018
    Hi all,
    The chrome plated (or is it stainless?) chainguard on my 50th Anniversay Cali has snapped on the bend where the front tab bolts to the swinging arm. I cleaned it up, rivetted a bent replacement bracket on there and that snapped first ride. Three questions:
    1. Is it the vibes as I cant see where any load could be being applied?
    2. Should I mount the replacement one on a couple of tap washers?
    3. Anyone else had this issue, what did you do?


    Cheers
     
  2. thesixthelephant

    thesixthelephant

    Joined:
    May 13, 2018
    Warranty surely ???
     
  3. Eljahara

    Eljahara VIP MEMBER

    Joined:
    Jul 8, 2018
    As Mark says, warranty issue -the Cali’s only started getting out the door towards the end of Autumn.
    John
     
  4. Welshrugby

    Welshrugby

    Joined:
    Jan 18, 2018
    Same issue, at about 900 miles. Rob at HQ sent a replacement
     
  5. Raphi

    Raphi

    Joined:
    Aug 17, 2015
    Yes had this and did fit a replacement in carbon fibre. Never had any problem with the chain guard since then.
     
    BLIGHTYBRIT/SF likes this.
  6. Fast Eddie

    Fast Eddie VIP MEMBER

    Joined:
    Oct 4, 2013
    Anyone know why this happens? Is there an alignment issue? The chaingaurd is under no load and carries no weight. If it’s not under under stress / tension (do to an alignment issue) I can’t see why it should break?
     
  7. jan nelder

    jan nelder

    Joined:
    Feb 18, 2018
    if it is stainless, it could have work-hardened, partly when first bent, then vibration?? Was it ever product tested ?
     
    Clive likes this.
  8. BLIGHTYBRIT/SF

    BLIGHTYBRIT/SF VIP MEMBER

    Joined:
    Feb 28, 2016
    Yep go carbon fibre ,as top of the shop mileage Ralph Says, “ no issues”
     
    Clive and Raphi like this.
  9. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    Yes , very common mine too. . The steel will break from vibration. If you leave the bolts loose , but loctite you can go longer without breakage. But you may hear the guard rattle during idle. Get the carbon fiber and install with rubber washer under stainless washer. Dont make bolts too tight , use loctite blue on fasteners . No more problems !
     
  10. Britfan60

    Britfan60 VIP MEMBER

    Joined:
    Jan 5, 2014
    Mine snapped. Had rust under it. Unusual since it had never been wet. Get the carbon fiber and be done with it. More traditional looking but so much more substantial and impervious to moisture. Norton was kind enough to just charge me the balance of the price.
     
    Raphi likes this.
  11. richard-7

    richard-7

    Joined:
    Feb 24, 2014
    The other items that brake/ crack often is the battery rack (holster) and the metal license plate holder.
     
    Raphi and TonyA like this.
  12. Eljahara

    Eljahara VIP MEMBER

    Joined:
    Jul 8, 2018
    Another 961 owner I met told me to occasionally check under the carbon fibre mudguard (rear) as it is a great water trap leading to rust on the swing arm
     
  13. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    Hello Richard , Are you referring to item #34 in this drawing ?


    [​IMG]
     
  14. Raphi

    Raphi

    Joined:
    Aug 17, 2015
    I guess it is #34 he refers to. I had to let it shorten. Gives less vibrations and is still compatible with the size of Swiss license plate...
    No more issues with this part.
     
  15. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    Mine has not broken yet. Could this part have been updated by Norton since 2012 or 2013 ?
     
  16. richard-7

    richard-7

    Joined:
    Feb 24, 2014
    No, there is a full metal holder. 2 styles. CF and a METAL one. The metal ones fatigue and crack just like the battery cradle and the chain guard and older cat bracket.
     
  17. Clive

    Clive VIP MEMBER

    Joined:
    Jun 9, 2017
    A true fact - check this y'all - saw this on mine after 3k or so. As I commute on the bike I spray acf-50 around liberally. If you're into high adrenaline sports then allow some to get onto the brake discs.....

    Penetrating Dinitrol should also be good.
     
    Britfan60 likes this.
  18. Britfan60

    Britfan60 VIP MEMBER

    Joined:
    Jan 5, 2014
    Mine is metal and honestly, until recently haven't inspected it. It does show some corrosion and my license plate is cracked practically all the way across. Finally put a backing plate behind it.