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Gearbox disassembly question

Discussion in 'Norton Commando Motorcycles (Classic)' started by know_fear, May 13, 2018.

  1. know_fear


    Apr 29, 2007
    We have probably all been where I am now, at one time or another.
    I opened my primary drive to replace the crank seal and clutch center. While waiting for parts to arrive I dug into the gearbox to adjust the ratchet spring and to shim out the kickstart shaft in an attempt at obtaining smoother shifts. My parts came but by then I saw how badly worn the kickstart pawl had become. New pawl, mainshaft bearing (timing side), and gaskets now enroute. While waiting for those bits I would like to inspect the cam plate and shift forks to see if something is causing a notchy shift into first from neutral.
    My question is, can the all the gears and both shafts be removed from the shell without
    removing the drive sprocket and sleeve gear? I would remove the clutch center nut and circlip. Will the mainshaft slide out from the sleeve gear without dropping anything out? I realize if the layshaft bearing comes out of the drive side I will have to do a further teardown to loctite it back in.
    I really don't want to remove the primary inner case just to see if there is a burr on the cam plate. In fact, delving further into the tranny may necessitate another parts order which will delay getting back on the road. :oops:
  2. kommando


    May 7, 2005
    The gearbox can be dismantled and the sleeve gear and sprocket left in place, go to the Old Britt's tech section for an excellent write up on the gearbox disassembly and assembly.
  3. know_fear


    Apr 29, 2007
    Thanks kommando. Found the info.