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Thread: New Project

  1. #11
    Join Date
    Nov 2007
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    North Carolina, USA
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    Quote Originally Posted by marvin View Post
    It was 80 degrees here yesterday (in the 50's today) so I got the stripes/clear on the S4R. Still have to rub it out. Here are a couple of pics.
    Looks good Marvin. I was out riding-- will finish some of my paintwork down the road a bit- just too nice out to paint.

  2. #12
    Join Date
    Apr 2007
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    Still working on the S4R. This used to be fun a few years ago (like 25 years ago !), a lot like work these days.
    One of the snowflake rotors was bent in the crash so I made hub and straightened it. Set the end play on the transmission shafts and selector drum, set the preload on the crank down to .006" (.15mm) and set the squish. (Brad's site is, as always, full of information, http://www.bikeboy.org/996squish.html).
    Last pics are of lightening the flywheel.
    Attached Images

  3. #13
    Join Date
    Aug 2007
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    Cornwall S.W. England
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    I know how you feel Marvin,
    Like you what was fun years ago now does seem like hard work but...
    My problem is actually getting started on a build/project, once I've actually got out of the blocks the enjoyment/job satisfaction does come back eventually.
    Although sometimes I wish that I could afford to just drop off a motor and write out a cheque.
    But then again if I did that I would never have the extreme pleasure of riding something that I'd built myself, knowing that the Buzz was all down to me.
    It's "Swings and Roundabouts" as we say here in the UK.

    Steve R

  4. #14
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    Apr 2007
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    Hi Steve,

    I can get started,,,then procrastinate!!

    Here's a pic of grinding the crank shims on the surface grinder to get them exact. I do the same thing with the valve shims.
    Attached Images
    Last edited by marvin; 04-24-2018 at 04:12 PM. Reason: spellin, damn spell check!!

  5. #15
    Join Date
    Jun 2007
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    Bris Vegas
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    Damn it Marvin. Stop taunting me. I thought I was coming up in the world when I got my flat plate.
    Griff
    To infinity and.......

  6. #16
    Join Date
    Jun 2007
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    Bris Vegas
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    Iím not sure if this is the right machine for doing shims, it is cheap but.
    https://rover.ebay.com/rover/0/0/0?m...2F352335791380
    Griff
    To infinity and.......

  7. #17
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    Apr 2007
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    Griff,
    Probably a little larger than you need but would work !!
    I had one almost like that, segmented stones in rotary head, fluid through the spindle. I gave the magnetic chuck to my Brother and sold it to a local glass blower who was going to grind glass with it. As far as I know it is still just sitting there.

  8. #18
    Join Date
    Jun 2007
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    Melbourne, Australia
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    how did you apply force to the disc to straighten it?

    i don't think a 320 would fit in my lathe. well, i know it wouldn't.
    Brad The Bike Boy

    www.bikeboy.org

  9. #19
    Join Date
    Apr 2007
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    Brad,

    The aluminum carrier was bent so I just whacked on it with a dead blow hammer, checking with a felt tip pen. If the disc was warped/bent I guess I would have tried to straighten that with a press. I don't know if it's straight enough so it won't "pulse" until I try it.

  10. #20
    Join Date
    Jun 2007
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    Bris Vegas
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    Marvin if you need one or two more to practice on let me know I have a few you can have them for postage. The snowflakes had a warranty issue and I scored a few from the bin.
    I tried getting a warp removed by surface grinding on an 851 floating rotor, it worked for a little bit, but after a few rides the warp came back. I guess once there is a stressed area, heat treatment is the only option, but the cost probably would make it unviable. We did have some success with early monster discs with strategic whacks, but they never were as good as a new one.
    Griff
    To infinity and.......

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