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Heart Transplant

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

  1. Adam_R

    Adam_R

    Joined:
    Nov 20, 2015
    I haven't done anything yet, the bikes still in various parts. There was debris everywhere, the oil pump is now locked solid
     
  2. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    Well, I guess I'll let you know where to look. :)
     
  3. Fast Eddie

    Fast Eddie VIP MEMBER

    Joined:
    Oct 4, 2013
    Swoosh, your filter will not have caught it all. You MUST clean out your tank!

    Removing it takes 5 mins. 5 more to clean and another 5 to re fit.

    With all the other work you’ve got going on, this 15 minutes is a ‘must do’ !

    If you don’t, you risk instantly pumping grimey shit through your fresh built motor.

    It’s a no brainer mate...
     
  4. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    Yes, tank will get cleaned.

    I'm just wondering why the filter doesn't catch more. Isn't that what it's for?

    They are technically able to strain down to around 25 microns.
     
    Last edited: Feb 7, 2019
  5. Hortons Norton

    Hortons Norton

    Joined:
    Oct 12, 2007
    Does your breather go to the tank?
     
  6. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    Yes, but through the breather on the back of the engine, through the reed valve and up to the oil tank. That is one heck of a path for anything. Once that engine was punctured there's no pressure in the crankcase and nothing would go up the breather.

    But good point.
     
  7. GRM 450

    GRM 450

    Joined:
    Dec 30, 2008
    David,
    How many revolutions did your engine do while it was in the process of shitting itself?

    You don’t know.!

    Expect the worst, metal shavings have gone everywhere.

    Clean every part or it may happen again.

    Graeme
     
    Hortons Norton and Fast Eddie like this.
  8. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    Oh, I know exactly. Freeway speeds. You don't forget those things.
     
    Last edited: Feb 8, 2019
    holtcorseaux likes this.
  9. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    I pulled the oil tank, lines and will take the oil filter off but it stuck.

    All parts will be cleaned or replaced.
     
  10. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    I want to warn you not to show this video to small children or those who are faint of heart. We finally get to see inside the carnage.

    I'll be accepting sympathy cards in the lobby.

     
    Mike T likes this.
  11. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    New oil, fuel and breather lines ordered.

    I used a Gates transmission oil line before and doing that again. It's braided and sturdy.

    My fuel lines are Tygon, and while they probably last longer than other fuel lines they still got hard after ten years.

    For the breather (from the reed valve to the oil tank I went with a clear silicone vacuum line. I'm assuming that because it's a vacuum line it won't loose it's shape? We'll see.

    The stuff should be here in the next week or so. I still need to strip the head and see what shape it's in.
     
  12. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    [​IMG]

    New oil lines (Gates transmission oil line), new breather hose (silicone vacuum hose), and new fuel lines (Tygon).
     
    Mike T likes this.
  13. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    In this video you see what caused all the problems.

     
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  14. p400

    p400 VIP MEMBER

    Joined:
    Jul 14, 2014
    Norton 750/850 Commando twins most commonly fail the left cylinder?
     
  15. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    Further away from the oil pump. So if you lose oil pressure it's going to get the least.
     
  16. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009


    I'll let you watch the video and won't spoil the surprise at the end. More pictures to come.

    The head is out being rebuilt now. I know how busy Jim is so I decided to stay local. All the guy's in the club use this shop, he's been rebuilding Norton heads since he was doing work for Kenny Dreer. Maybe before then. More on that later too.
     
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  17. gortnipper

    gortnipper VIP MEMBER

    Joined:
    Nov 11, 2013
    You going to paint it?
     
    Mike T likes this.
  18. swooshdave

    swooshdave

    Joined:
    Apr 15, 2009
    Lord yes.
     
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  19. gortnipper

    gortnipper VIP MEMBER

    Joined:
    Nov 11, 2013
    Silver, eh?
     
    Mike T likes this.
  20. Fast Eddie

    Fast Eddie VIP MEMBER

    Joined:
    Oct 4, 2013
    Silver barrels are faster...
     
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