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Stray Set Screw

Discussion in 'Norton Commando Motorcycles (Classic)' started by swooshdave, Jul 12, 2019.

  1. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    In the interest of covering my bases I found a small black set screw on the bike bench.

    Probably something like 10/32 or so. It could have come from anywhere but I’m just checking it’s not important.

    I can’t think of anywhere on the engine there a set screw with an Allen head.

    And it’s not a part I put on the engine and came off.

    Sure I might be paranoid but I think I’ve earned that paranoia. :oops:
     
  2. comnoz

    comnoz VIP MEMBER

    Joined:
    Dec 10, 2008
    Yeah that setscrew goes inside the crank. Time to start taking it apart again.:p:p:p:p
     
    fiatfan, SteveA and cash like this.
  3. ashman

    ashman

    Joined:
    Jul 11, 2010
    Yep better pull it a part again, but really don't you hate it when that happens when you find a screw on the bench and then thinking where the hell did that come from, but owning my bike for over 43 years and a few pull downs with my motor and others I know every nut, bolt and little things that go into a Norton motor, but finding something like that does make you think
     
  4. 850commando

    850commando

    Joined:
    Nov 1, 2014
    i could think of 2 locations. although i don't know what size they may be.

    1 is the set screw for the oil gallery in the crank right cheek.
    2 could be in the oil gallery leading from the oil pump in the timing cover
    3 do you have the mk3 isolatics adjuster? could be a set screw for there..
     
  5. madass140

    madass140 VIP MEMBER

    Joined:
    Nov 6, 2011
    post a pic is the best bet
     
  6. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    I think it's bigger the 10-24, more like 1/4-20.

    The first time we noticed it is when we pulled the engine out. The timing cover was already on.

    I'll check the isolastics just to be sure.

    Picture coming soon.
     
  7. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
  8. kommando

    kommando

    Joined:
    May 7, 2005
    Timing side crankcase, grub screw to block oil route so it matches MK3 timing cover.
     
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  9. Torontonian

    Torontonian

    Joined:
    Dec 28, 2009
    Or isolastics ? Were they out on the bench too ?
     
  10. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    Except I never did that.
     
  11. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    I’m surprised it would have fallen out as it was never loosened but I will check.
     
  12. 850commando

    850commando

    Joined:
    Nov 1, 2014
    looks to big to be isolastic, did you have the crank apart to clean the sludge trap?
     
  13. comnoz

    comnoz VIP MEMBER

    Joined:
    Dec 10, 2008
    It doesn't look like a part that belongs to your motor.

    Kommando had the only possibility.
     
  14. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    Yes, but that was a long time ago.
     
  15. gortnipper

    gortnipper VIP MEMBER

    Joined:
    Nov 11, 2013
    Do you have raw video of putting the crank back together? You could review that to see if you caught the grub screw detail. Or missed it...
     
  16. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    I’m just saying there’s no way the crank screw could have gotten there. Never had the crank near the lift.
     
  17. Hortons Norton

    Hortons Norton

    Joined:
    Oct 12, 2007
    It looks unused to me?
     
  18. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    Me too.
     
  19. gortnipper

    gortnipper VIP MEMBER

    Joined:
    Nov 11, 2013
    Oh, on the lift. You said bench in your original post so I thought the construction video might show it. If it was on the lift I would definitely look elsewhere.
     
  20. comnoz

    comnoz VIP MEMBER

    Joined:
    Dec 10, 2008
    It also looks nothing like the crank grub screw. Wrong thread pitch and head.
     
    swooshdave likes this.

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