Rocker Shaft Puller (2010)

Discussion in 'Norton Commando Classic Motorcycles' started by DogT, Aug 7, 2010.

  1. DogT

    DogT VIP MEMBER

    Joined:
    Jan 20, 2009
    Nspeed,
    He did tell me "precision measurement and inspection of valve springs" on the bill. He did use my old springs and verbally assured me that he had the equipment to properly measure the spring load. I have to take him at his word on that, I was not there.

    Dave
    69S
     
  2. nortonspeed

    nortonspeed

    Joined:
    Jun 29, 2008
    With a springloaddevice :mrgreen:

    It's a small universal pressure gauge slightly adjusted for its purpose. I will post a picture of mine later.
     
  3. nortonspeed

    nortonspeed

    Joined:
    Jun 29, 2008
    So you are probably ok.
     
  4. DogT

    DogT VIP MEMBER

    Joined:
    Jan 20, 2009
    I notice in Mick's reassembly DVD that his rocker shaft went in 3/4 way with just fingers and he just tapped it on it. Maybe mine is the same, but most likely not, if tight I'll use the heat. Haven't seen his removal DVD yet, the boss is napping on the sofa.

    How thick are the thrust washers so I know how many to get?

    Dave
    69S
     
  5. Bill G

    Bill G

    Joined:
    Aug 22, 2006
    I just bought some from Old Britts a few weeks ago. They measure between .014" and .0145" . Looking at the picture of your valve, my guess would be you may need up to 3 more. They are cheap. Get a coupe of extras.

    Bill G
     
  6. nortonspeed

    nortonspeed

    Joined:
    Jun 29, 2008
    Universal valve pressure gauge with home made auxiliary.
    Essential if you want to do your own headwork properly.
    [​IMG] [​IMG]
     
  7. DogT

    DogT VIP MEMBER

    Joined:
    Jan 20, 2009
    NSpeed,
    Thanks for all that info.

    Just for reference, I just watched Mick's DVD on removing the rocker spindles and he didn't heat the head. He said you may have to if they are really, really tight. His removal tool is similar to the one I fashioned up, but of course better. I'll see how it goes.

    Dave
    69S
     
  8. L.A.B.

    L.A.B. Moderator VIP MEMBER

    Joined:
    Nov 20, 2004
    However, I strongly suggest you use some heat! Every time the spindles are pulled out cold makes them a little slacker fit in the head.

    Remember it's the fit when the assembly is hot that's important. If the spindles are not tight when the assembly is cold then it will be worse when the cylinder head is up to its running temperature and the rather poor tabs on the cover plates may not prevent the spindles rotating.
     
  9. DogT

    DogT VIP MEMBER

    Joined:
    Jan 20, 2009
    LAB,
    Thanks, I'll do that. No reason to make things looser than necessary.

    Dave
    69S
     
  10. DogT

    DogT VIP MEMBER

    Joined:
    Jan 20, 2009
    I finally got my new used RH exhaust rocker arm installed and used 2 washers to get it over where it needed to be centered on the valve face. Went in mostly like in Mick's DVD, about 3/4 way by hand. Used a bit of heat to get it out. Must have been something wrong with the adjuster thread in the original rocker arm. New one fits the mushroom adjuster just fine. Can't figure out why both rocker arms are hitting the valve face to the right when the original adjuster and valve was dead on. Could it be the new valve guide has shifted the valve? Mick does say in his DVD that it is the RH exhaust that always has problems centering the adjuster on the valve. I do wish Leo had taken care of that, but he most likely would have taken another few weeks and charged me more for a new arm, etc. I only ended up spending another $50 for a couple of washers and a used rocker arm from British Only, the only place I could find one in the US. Norvil had a new one, but was very pricey. The used one looked fine and was actually a bit heavier than my old one. Head is on and torqued down now.

    Dave
    69S
     
  11. hobot

    hobot

    Joined:
    Oct 19, 2005
    Congrates to get one more simple, with many delays, task behind thee. Don't seem like you took opportunity to trim the close passing rock arm ends to ease the push rod placing. Let me know how soon that little mod comes to mind while in position of Norton worship.

    hobot
     
  12. DogT

    DogT VIP MEMBER

    Joined:
    Jan 20, 2009
    Didn't know there was a mod to the rocker arms. I didn't have any trouble getting the rods up in the head, used some rubber bands to hold the arms up as far as they go and more rubbers to hold the rods up in the head, then when head on and the rods down on the tappets, release rubber bands to get arms in some real position, then reinstall rubbers to hold the arms in the rod sockets after fiddling, turn over engine slowly to make sure nothing interferes, tighten head bolts, Didn't take maybe 20 minutes including coating the gasket.

    Dave
    69S
     
  13. chaztuna

    chaztuna VIP MEMBER

    Joined:
    May 5, 2017
    Very resourceful, Dave. I did something similar.
    A more controlled method of removing the rocker shaft spindles is to use a puller. This can be easily fabricated using a 15mm deep 3/8" drive socket, a 5/16" -
    26 CEI bolt of appropriate length & a 5/16" flat washer. Install the washer onto the bolt. Place the open end of the socket against the cylinder head. Verify that the socket wall will not foul the spindle as it is removed. Insert the bolt/washer through the socket. Thread the bolt into the spindle by hand. Snug the bolt up, so that the socket does not fall or move on the head. Double check that the socket will not foul the spindle. Tighten the bolt with a spanner [wrench] or ratchet/socket to withdraw the spindle. It is useful to catch the rocker spring & washers with a magnet as you withdraw the spindle.

    Then I went & purchased a purpose made puller. I bought this 35 years ago, so I don't really know who I purchased it from. I probably bought it from either DomiRacer or KK Cycle Supply [both now defunct].

    [​IMG]

    [​IMG]
    [​IMG]

    Charlie
     
  14. Danno

    Danno

    Joined:
    Feb 7, 2010
    I have one of those around here somewhere, but can't find it, so I made a quick-and-dirty one out of an old cookie cutter spark plug socket and a bolt welded to another bolt (mixed threads, ya know). You can heat the rocker bore bosses and the top of the head with a small propane torch and easily pull a spindle with no damage to valve seals.
     
  15. Mr. Rick

    Mr. Rick VIP MEMBER

    Joined:
    Feb 6, 2009
    How does Charlie even find these threads that are 8 years old?
     

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