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Mirror Stalk Fixation

Discussion in 'Norton Commando Motorcycles (Classic)' started by Tornado, Apr 14, 2019.

  1. Tornado

    Tornado VIP MEMBER

    Joined:
    Dec 5, 2017
    Having some trouble keeping the left hand mirror stalk from working loose while riding about. Tried pretty high torque and even a lock washer (split type) under the fixing nut...but after a few hours ride the mirror is back to rotating with minor wind pressure.

    What are the hot tips on keeping it snug?
     
  2. Craig

    Craig VIP MEMBER

    Joined:
    Dec 20, 2005
    I use a "Made in England" bar end on left bar .... installed several years ago , zero issues, easy to flip out of way for parking or storage .... nice, wide unobstructed rear ward view which is a bonus !
     
    Fanfan26 and Tornado like this.
  3. NortonMKIIA850

    NortonMKIIA850

    Joined:
    Jul 20, 2017
    Loctite? I don't have this problem, unless someone (!) has knocked the mirror on something. Then tightening the locknut fixes it completely. Until the next time.
     
  4. Bob Z.

    Bob Z.

    Joined:
    Mar 30, 2012
    Are you using the stock alloy switch/clutch lever perch?
    Perhaps the alloy threads have wallowed out. Maybe a good candidate for a thread insert?
     
    Last edited: Apr 14, 2019
    Craig likes this.
  5. CanukNortonNut

    CanukNortonNut

    Joined:
    Aug 8, 2005
  6. Tornado

    Tornado VIP MEMBER

    Joined:
    Dec 5, 2017
    Yes, stock perch. Mirrors are repro of OEM, so likely not up to stock spec.
    Would like to keep stalk mount for now, but may go bar ends at some point.
     
  7. Tornado

    Tornado VIP MEMBER

    Joined:
    Dec 5, 2017
    Might do the trick.
    But, doesn't the nut grip a shoulder on the stalk to hold it and any spacing between nut and perch surface means less force on the stalk shoulder?
     
  8. CanukNortonNut

    CanukNortonNut

    Joined:
    Aug 8, 2005
    The Nord-lock has radial grooves that grip the nut or bolt and the material under. The wedges between the two piece washer works against the thread of the mirror thread. There is good info and videos for these washers. https://www.nord-lock.com/nord-lock/products/washers/?campaign=328043079&content={creative}&keyword=lock%20washers&placement={Placement}&utm_source=bing&utm_medium=cpc&utm_campaign=Bing_Nord-Lock&utm_term=lock%20washers&utm_content=Nord-Lock%20Washers
    They are expensive. :eek:
    Cheer,
    Thomas
     
  9. Tornado

    Tornado VIP MEMBER

    Joined:
    Dec 5, 2017
    OK, just checked it...no shoulder on the stalk base, just a straight thread. Loaded up with blue thread lock after a degrease and returned the split lock washer to position. Will see if that does the job.
     
  10. Interbak

    Interbak

    Joined:
    Jan 21, 2015
    The Nord-Lock washers are a great product! We used them on rail cars, which is a very high vibration application.

    B
     
    Tornado likes this.
  11. Fanfan26

    Fanfan26

    Joined:
    Mar 14, 2012

    same for me,very good security ;)
     
  12. concours

    concours VIP MEMBER

    Joined:
    Dec 29, 2011
    Does your aftermarket mirror have a jam nut on the stem? Are you backing it off a half turn from bottomed out on the stem, then using it to lock adjustment?
    I’ve never had a properly tightened mirror on ANY motorbike in 42 years come loose without provocation.
    The split lock will only tear up the alloy perch. Please don’t.
     
  13. Tornado

    Tornado VIP MEMBER

    Joined:
    Dec 5, 2017
    Yes, a jam nut on the stalk. Will take your suggestions to heart if my locktite doesn't help.
     
  14. MexicoMike

    MexicoMike

    Joined:
    Jan 31, 2010
    Blue loctite never held my stock-type mirrors. Neither did red. :( My feeling is that the replacement stock-type mirrors attachment threads are not a match for the OEM mirror bosses. I gave up and went to bar-end some years ago. I've had no trouble at all with them.
     
    Tornado likes this.
  15. Tornado

    Tornado VIP MEMBER

    Joined:
    Dec 5, 2017
    I am still partial to the look of stalk type classic mirrors. Were bar ends a thing back when these bikes came out?
     
  16. eskasteve

    eskasteve VIP MEMBER

    Joined:
    Sep 24, 2012
    I've used a Belleville washer that had ribs like a Nord. Found them at McMaster-Carr.
     
  17. seattle##gs

    seattle##gs

    Joined:
    Oct 28, 2014
    the nord-lock works very well for the gear indicating pointer on the gearbox.
     
  18. Onder

    Onder

    Joined:
    May 11, 2010
    Problem with stalks is that they seem a bit more susceptible to vibration. Perhaps Im wrong but that is one reason I went to bar ends on all my bikes.
     
  19. MexicoMike

    MexicoMike

    Joined:
    Jan 31, 2010
    No, they weren't and I agree, I preferred the stock-type mirrors. I went to the bar end ONLY because I couldn't get the replacement mirrors to stay in position. On my original Norton Commando back in the day, the stock mirror worked fine. It's the replacement mirrors that didn't.
     
  20. NortonMKIIA850

    NortonMKIIA850

    Joined:
    Jul 20, 2017
    Bar-end mirrors were certainly around in the '70s, probably earlier. Stadium was one brand I think.
     
    batrider likes this.

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