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Go-Kart suspension upgrade

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  • #16
    Nice job, have a lot of fun.
    Mel
    _____________________________________________

    I would rather have tools that I never use, than not have a tool I need.
    Oregon Coast

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    • #17
      well done mate.. you made it look so easy.

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      • #18
        Neat work. Heim ends will sometimes pop apart.
        Suggest putting large safety washers on at least one side of them.

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        • #19
          Thanks guys for looking so close to the details:

          Torker: Thanks for the tips, This was the hardest thing I welded so far (2 different thicknesses around a tube joint). I used a 3/32 tungsten and a gas lense so I could get more stick-out. I did see the undercut after I did it, but I thought it was from too much heat. I'm a little confused now - I thought shorter arc gave more amps = hotter, but with a constant current supply does it matter that much (within reason)?

          USN RET: No argument. The bolts got too short when I doubled the thickness of the 1/16" tabs that the inner pivots mount to (because I've seen pictures of these ripped out when people have crashed). If you look at unpainted pictures you can see the tabs I added. Basically what was silver was what I started with (Yerf Dog Spiderbox front clip). The design is piss poor on these cheap kart parts - as you noticed they have bearing areas on threads - and as you would imagine the thread in that area is bashed. Right now I cross drilled the nut and wired it. To fix it correctly I'll have to make my own shafts. The a-arms have bushing in them and they are supposed to take the relative movement - with the bold fixed and the tabs only providing location. I'll make my new shafts and weld a tab on the frame that will sit against one of the flats on the bolt hex to ensure that it is stationary and not spinning.

          Trap: Thanks for the washer suggestion - good idea, i'll do it. These heim joints are actually left hand thread - why - because that is what I had and got for free!

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          • #20
            Good job, looks an awful lot like one a guy showed over on the metal illness site 2 or 3 months ago.
            James

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            • #21
              Yes that is me on the metal illness site as well (same name as well) - I have more posts there but posting links from one BB to another BB is typically frowed upon by the moderators so I have just been starting becoming active here and transfering posts here because there is a bigger audience.

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              • #22
                Most impressive!

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                • #23
                  Originally posted by gda
                  Thanks guys for looking so close to the details:

                  Torker: Thanks for the tips, This was the hardest thing I welded so far (2 different thicknesses around a tube joint). I used a 3/32 tungsten and a gas lense so I could get more stick-out. I did see the undercut after I did it, but I thought it was from too much heat. I'm a little confused now - I thought shorter arc gave more amps = hotter, but with a constant current supply does it matter that much (within reason)?
                  I wrote this up over on the welding section. Prolly a good thing for everyone who is learning to tig to read...
                  http://bbs.homeshopmachinist.net/sho...127#post444127
                  Russ
                  I have tools I don't even know I own...

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