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Heart Transplant

Discussion in 'Norton Commando Motorcycles (Classic)' started by swooshdave, Aug 17, 2018.

  1. Hortons Norton

    Hortons Norton

    Joined:
    Oct 12, 2007
    Thanks Jim.
     
  2. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    I went over to @Mike T place last night to assemble the crank. It was way easier with an extra pair of hands. Plus he has a massive Whitworth collection. And a vise. Oh, and a workbench.

    [​IMG]

    And that kids is what $200 looks like!

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    300 in/lbs or 25 ft/lbs.


    [​IMG]
    Tabbed washer tabbed.


    [​IMG]

    Now to get the old bearings off. It was easier with the whole crank assembled so vise could grab the flywheel. If you put the counterweights in the vise there isn't a lot of room to get the puller on it.
     
  3. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    Over the holidays I had a 25% off coupon and picked up this bearing puller set from Harbor Freight. It's quite the kit and after coupon I think it was about $35. This is the larger puller, there is also a smaller one in the set. https://www.harborfreight.com/bearing-separator-and-puller-set-62593.html

    [​IMG]

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    We used a heat gun to lightly heat up the bearings and with a little effort they pulled off. I felt bad taking them off, the bearings feel absolutely perfect. But since I have some lightly used Superblends and it's a Combat I can't leave the original bearings in there.
     
  4. Fast Eddie

    Fast Eddie VIP MEMBER

    Joined:
    Oct 4, 2013
    Nice Triumph !
     
    swooshdave likes this.
  5. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    What you don't see is the pile of bikes behind me. :cool:
     
  6. YukoNorton

    YukoNorton

    Joined:
    Sep 4, 2017
    Can you turn around and share a pic? Got me curious now...
     
  7. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    Schilling likes this.
  8. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    Plus this.

     
    Schilling likes this.
  9. cyclegeezer

    cyclegeezer

    Joined:
    Jul 15, 2010
    Good move using that washer to take the friction wear.
     
  10. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    Yeah, the Chinese metal didn’t stand a chance against the English iron.
     
  11. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    Next up is the conrods. I have new nuts but will be re-using the bolts. In fact the bolts are still in the rods. I will replace the bearings, slather on some assembly lube and torque to spec. What am I forgetting?

    Once I'm done there I need to turn my attention to the engine cases.
     
    Last edited: Jan 14, 2019
  12. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
  13. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
  14. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    [​IMG]

    [​IMG]

    Plenty of assembly lube.

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    25ft/lbs Again, way less than I thought they would take. Even though they are locking nuts I still put a little locktite on. You guys have made me paranoid...

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    Ironically the only time I read the instructions is when there's a pretty lady on the cover.

    Thanks again to @Mike T for letting me use his workshop and the video and the tools and so on.
     
  15. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    Next I think I need to pull the blown motor to see what I can salvage. It's going to be hard finally looking at all the damage.
     
  16. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    I'm guessing the rods went on correctly as no one mentioned anything. Side play isn't really that important, is it? Just as long as there is some?
     
  17. baz

    baz VIP MEMBER

    Joined:
    May 26, 2010
    No side play isn't as important, if you want to check the big ends you can pull the con rod to one side with your fingers then push the top part of the rod with your thumbs
    Thereby rocking the rod whilst it's pulled one side
    On a freshly built big end with new shells/journal in tolerance there should be no movement
     
    swooshdave likes this.
  18. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    [​IMG]
    Patient has been moved to the operating table.

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    This piece of connecting rod was found on the floor. Normally this would be found inside the engine...

    For the rest of these pictures look away if you're squeamish.

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    I think that journal is going to need more than a light "touching up".
     
  19. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    [​IMG]

    I found a little oil in the primary. It should be dry.

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    Once I remember how to remove the front pulley (there are two holes to thread the puller into) I think I can just leave the stator attached to the inner cover. Then remove the clutch. That should, sadly, give a better view of the engine.

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    This bearing shell fell out too. Just straighten it out and reuse it, right?
     
  20. Fast Eddie

    Fast Eddie VIP MEMBER

    Joined:
    Oct 4, 2013
    As they say Dave “shit happens” !

    You’re just gonna have to bite the bullet and crack on mate. You know it’s not gonna be pretty in there.

    That’s a big chunk missing from the case. You gonna repair or replace?

    Do keep the pics and updates coming.

    And do let us all chip in and tell you what fancy pants bits to fit... I find it’s MUCH easier spending other people’s money at times like this ;)
     
    Mike T likes this.

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