1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

1973 Mk1 Rebuild, back from the grave!

Discussion in 'Norton Motorcycle Rebuilds' started by Tony Pierce, Mar 16, 2019.

  1. Tony Pierce

    Tony Pierce VIP MEMBER

    Joined:
    Mar 7, 2019
    I have been very busy with work, so I don't have huge updates, but I have spent some time working on the Norton. I have the frame completely prepared according to the Old Britt's guide. I am planning on dropping off the frame, swingarm, and misc. parts off tomorrow on my lunch break.


    While waiting on the cylinders and frame to be powder coated, I thought I would dive into the gearbox to replace the infamous layshaft bearing, just in case.

    I could not believe how hard it was to take off those straight style screws on the cover! I broke off two of my impact bits (high quality US made impact driver), and three of the screws had to be extracted.



    The first screw came out with an ez-out style extractor, so that was encouraging!

    The other two were not budging, and I was afraid I would crack the cover by pounding in the extractor too tight. I ended up drilling out the heads.

    I ran out of time before I could finish the job today, but I didn't think it looked too bad inside. It had a little sludge buildup, but nothing too terrible. I plan on completely dissembling it, cleaning everything, replacing the seals and gaskets, and then reassembling.





    Upon reassembly, I am definitely going to use some good stainless torx or allen capscrews.

    Not really project related entirely, but I went to a motorcycle show in my small town (Grand Forks, ND) and was happy to see a CNW bike there! I was able to chat up the owner for about 45 minutes, couldn't have been nicer and more gracious to my questions. I wish I had asked for his phone number so we could go for a ride sometime.

    Funny enough, i had actually saved a picture of his exact motorcycle off the CNW webpage, and was using it for inspiration on my phone, before I had met him!

     
  2. grandpaul

    grandpaul VIP MEMBER

    Joined:
    Jan 15, 2008
    If you take the proper impact tip, set it in the fastener, and smack it smartly with a hammer BEFORE you engage it with the impact tool, the fastener will typically release better/sooner.
     
    Tony Pierce likes this.
  3. Tony Pierce

    Tony Pierce VIP MEMBER

    Joined:
    Mar 7, 2019
    Good advice. I probably should have stopped and asked before I went through that much aggravation. I went straight for the impact.
     

Share This Page