Technical & Reference Section > Tech and Restoration

1982 Shimano 4000 build.

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Avro:
I like to give new things a go. 'Do it yourself' if I can, although I exclude decorating from this because it is the worst job in the world. The Shimano is a very clean frame, excellent really but clearly used. I want it to be near perfect, given the limitations of my skills.

Now, the rear dropouts are marked, the following pictures were taken after I flattened down the burrs:

Left hand
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Right hand
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This was a blatant excuse to try out brazing, something I have wanted to have a go at for ages. I have another frame that has a couple of dings to the bottom of the chain stays that I want to fill with brass so this would be practice. With these jobs in mind I purchased a little kit:

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The kit has sat in the Man-Cave for a while waiting for a) courage to give it a go, and, b) another over-arching project coming together. My project list is quite long and I hope to unify them all into one whole, trouble is this takes time and planning but I am getting there. I said in opening post of this thread that I had three BMX projects all on a similar theme, well make that four because a Rhino III has just landed on my doorstep.

The Shimano needs to get moving, and I can not do a lot until the frame is painted, therefore I have try to braze. I plan to send the frame off to SBD this time. I have been using a local powdercoater; they mainly do agricultural stuff but take on anything. The jobs I have had done have been good, no doubt, very cheap too. However, I recently tried to peel some decals off a set of forks powdered by them and the decal took most of the paint from one leg with it. The rest of the paint just peeled off by hand. I guess you get what you pay for.

Avro:
...how hard can it be! Flame, rod, metal.....bravado :idiot2:

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Well, not too hard but, predictably, initial attempts are a bit, ummmm, messy ;D

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Still, brass has been applied to metal so I am claiming a success! Here is the worst of my efforts, the other side was much better but I forgot to photograph it, honest that is true!


...flatted down with files and emery cloth and calling it quits! I could put more brass down but, for a first go, I am happy (ish).

Left:
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Right:
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So, need to call SBD and get the thing in the post, not forgetting the forks of course. More soon I hope.

SH101:
Pretty good , that ^ .
Got your new frame yet ?

Avro:
Arrived today, thank you Rob.
I think you are right, the frame and fork are nos. There are no build marks anywhere, just a bit of patina from age.
Thank you again, top man.

factory pilot:
A fantastic build thread already mate! Love it  :4_17_5:

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