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Thread: 1965 Triumph Chopper

  1. #61
    Member BusaSteve's Avatar
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    Same stuff they built the Titanic from...













    from the interwebs.....

    AISI 1018 mild/low carbon steel has excellent weldability and produces a uniform and harder case and it is considered as the best steel for carburized parts. ... Provided with higher mechanical properties, AISI 1018 hot rolled steel also includes improved machining characteristics and Brinell hardness.
    Smoke me a kipper...I'll be home in time for breakfast
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  2. #62
    Member El Skitzo's Avatar
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    So I've packed up my pile of parts and dropped it down to Tom at Sideshow Cycles in South Freo, to turn the whole thing into a roller. I simply don't have the time at the moment, and definitely not the expertise to manufacture the parts needed to rebuild the front end.

    Funny thing is, the whole thing fit into the boot of my car.

    From what I hear he's sandblasted the frame and given it a coat of primer to protect it from surface rust, and bolted the frame together. Next up he'll be dropping the engine in, and is waiting on me now to source a rear chain before the rear wheel can be bolted in and correctly aligned. In the mean time he's stripped the girder front end, and will be making new studs and bushes for it.

    Once the front end is rebuilt we'll look at sourcing a front wheel, of which he's talked me into staying with a drum brake on the front to keep it simple, so we'll see what we can find.

    I'll probably head down there on Wednesday to take a look and a few pics.


  3. #63
    Member El Skitzo's Avatar
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    Thanks to Ben at British Imports we were able to source a new drive chain yesterday. Unfortunately he didn't have a 130 link 530 in stock, but did have a 114 link item, which combined with a spare 20 links he had left over from another bike build he was able to rivet the two together on the spot and sell me effectively a 134 link 530 chain for $80. Good deal!

    So we dropped that off to Tom at Sideshow Cycles and took in the progress so far. The frame looks so so good now that it's been sandblasted and hit with a coat of black primer. We can see a fair few repairs the front loop will need going forward, but some of those issues might disappear if we get the go ahead to chop and stretch the frame.

    The frame and engine are now all bolted in with the correct grade, thread and length bolts, some of with a British Cycle thread which is extremely difficult to find locally now.







    You can see here the new neck cups pressed into place for the bearing conversion kit which allows us to use a Harley front end in a Triumph frame.





    How good do these Biltwell finned aluminium rear engine mounts look!? Very high quality pieces which they not longer make, so I was very lucky to get one of the last sets Lowbrow Customs had left in stock.

    Last edited by El Skitzo; 31-08-2018 at 10:15 AM.
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  4. #64
    Member El Skitzo's Avatar
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    Well the first little snag has been found.

    Tom was aligning the rear wheel in the frame yesterday and making up the spacers, and had it to the point where he was happy. He then gave the rear wheel a bit of a spin and the wheel was tracking true, but the drum brake wasn't and appeared to be wobbling around like it was warped or something, which would be weird given it's cast.

    So he pulled the rear drum assembly apart and found the problem. A dodgy spacing job by someone in the past to space the drum out further from the hub, probably to help the chain clear a wider tire, they've used 3 washers per wheel stud. Obviously garden variety washers are not very precise in thickness, hence why the drum was not spinning true like the rest of the wheel.

    Unfortunately this assembly was in place when I had the rim re-spoked and offset, so if we remove this spacing the chain may not clear the tyre any more. We could pull the tyre off the rim and have the rim offset adjusted again, or what we're probably going to do is replace the washers with a custom CNC made spacer plate to keep the drum where it was in relation to the hub, but be perfectly precise and aligned.

    This is my fault really. Having received an old rear wheel which I was told was rebuilt, I should not have believed the seller and stripped it down myself to check everything before proceeding with any further work with it. Lesson learned for future!


  5. #65
    Member =Maz='s Avatar
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    Quote Originally Posted by El Skitzo View Post
    This is my fault really. Having received an old rear wheel which I was told was rebuilt, I should not have believed the seller and stripped it down myself to check everything before proceeding with any further work with it. Lesson learned for future!
    It's a lesson many of us have learned the hard way...glad the fix is relatively painless.
    Last edited by =Maz=; 06-09-2018 at 10:46 AM. Reason: dyslexia strikes
    All I've got and more for #294...RIP Chris Adley
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  6. #66
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    Brightside

    Might be a advantage to have a modern machined spacer disc as a defacto base to build the crusty old old hub around?
    Note: this may not be the universe where the above is relevant.

  7. #67
    Member El Skitzo's Avatar
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    Quote Originally Posted by somebodyelse View Post
    Might be a advantage to have a modern machined spacer disc as a defacto base to build the crusty old old hub around?
    That's essentially what I think the plan is. I'll be dropping down tomorrow to check on the progress and discuss how the project is coming along, so hopefully I'll have some clarity from that.

    In the mean time Tom is pushing ahead with rebuilding the girder front end with plans for improving the fork pivoting assembly.






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