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Author Topic: The rebuild  (Read 9630 times)
flc
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« on: October 22, 2020, 06:27:59 AM »

Hi folks, thought I'd start a thread on my chop rebuild,
It was originally built and finished in 2008 and sva'd etc, then run for a few years until I got interested in air-cooled vw's it's since Sat rotting away until earlier this year when if was pulled out of the shed and a quick inspection showed that although in bits didn't need that much work,
So here we go
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flc
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« Reply #1 on: October 22, 2020, 08:07:55 AM »

The initial build idea was something that would keep passengers comfy and dry, as my kids loved to go out pretty much anywhere on the chop, they are now older/wiser so a more minimal look is in order, the original motor was sold to fund a static caravan at the coast, so I was looking for a replacement when an old school mate posted a picture of his bike in his shed, I could see in the back ground a few motor's kicking about and cheekily asked him for one, to my surprise he kindly offered me a 77gs 750 lump and carbs and wouldn't take money for it, I gave him a pre unit oil tank (he's into brit stuff) and then he also told me it used to be owned by a late mutual friend of  ours who left us too soon, which of course makes this definitely the motor to use, so a massive thanks to stezz and wig if your watching then I hope you get a buzz seeing this Cool r.i.p brother......
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flc
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« Reply #2 on: October 22, 2020, 11:19:09 AM »

So with that out of the way let's crack on. I started by collecting bits to remake the girders (as much as possible in stainless) and also parts for the restyling of the rear end.
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flc
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« Reply #3 on: October 22, 2020, 11:24:47 AM »

I found a guy on ebay selling mudguards that are ment for specific size tyres, I will be running a 160/80/16 so that's what I bought with some doubt as to fit etc, but it's amazingly good, nice thick material almost perfect radius (see pics) whuhoo
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flc
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« Reply #4 on: October 22, 2020, 11:40:34 AM »

So onto the girders, I sourced some stainless tube in 5/8 enough to make the legs, also  a guy named reg supplied me with a chunk of 316 for the top yolk, so away I went, closely following the design of the original except moving the pivot forward to allow a through bolt for easier accuracy
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flc
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« Reply #5 on: October 22, 2020, 11:41:16 AM »

More pictures
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flc
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« Reply #6 on: October 22, 2020, 11:43:06 AM »

More with some of the other bits I made earlier
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flc
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« Reply #7 on: October 22, 2020, 11:44:08 AM »

Another trial fitted to the bike
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flc
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« Reply #8 on: October 22, 2020, 11:45:13 AM »

Last one, on to the legs next
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Manky Monkey
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« Reply #9 on: October 22, 2020, 11:03:12 PM »

Ooh, haven't had a new project posted here for a while Smiley
Looking forward to reading this one.
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On the last freedom moped out of Nowhere City.
Olds
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« Reply #10 on: October 23, 2020, 08:42:32 AM »

A new project AND girder ! Great.
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Getting older but no wiser! Just using bigger hammers.
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flc
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« Reply #11 on: October 23, 2020, 09:53:16 PM »

Thanks guys, best make this a good un then  Grin
 Yes like a set off girders and had a good look at the ones you built olds.
These are the 3rd set I'll have done first set we're these pre sva which were a lot shorter then remade just with longer legs, then I made Andy a set for tazs trike and learned a better design which I've used on this top yolk, basically moving the top pivot forward in the yolk and drilling completely through so I use a solid spindle, drilling this in mild steel ws easy compared to the 316 stainless, another learning curve but worth it in the end, trick seems to be a solid set up and keep the cutting feed constant with plenty of coolant and stopping is OK and advisable to cool things off but getting going again requires a bit of courage to hit it at the same feed rate no rubbing as it will work harden the material and leave you stuck, I'm glad that it's now made and if I do any more I'll get 303 grade which machines more like normal mild steel
« Last Edit: October 23, 2020, 10:11:49 PM by flc » Logged
flc
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« Reply #12 on: October 23, 2020, 10:19:11 PM »

Some photos of the sort of look im going for
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flc
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« Reply #13 on: October 23, 2020, 10:20:48 PM »

Just means more machining of the side links
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flc
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« Reply #14 on: October 23, 2020, 10:21:55 PM »

Pic with old top yoke
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