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Author Topic: A Blast from the Past  (Read 8566 times)

Offline Bevelheadmhr

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Re: A Blast from the Past
« Reply #30 on: Jan 21, 2017, 06:44:00 »
Cheers, not many folks on here appreciate how much work is in a bike like this... anyway, here's the next instalment..


Offline ridesolo

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Re: A Blast from the Past
« Reply #31 on: Jan 24, 2017, 10:33:14 »
Fantastic work.  Following along.
“Fight on and fly on to the last drop of blood and the last drop of fuel, to the last beat of the heart.”
— Baron Manfred von Richthofen

Please check out:  http://www.VetTix.org

These are on a low simmer out in the shop:
'75 Honda CL360: http://www.dotheton.com/forum/index.php?topic=56547.0
'70 Rupp Roadster: http://www.dotheton.com/forum/index.php?topic=67459.0

Offline datadavid

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Re: A Blast from the Past
« Reply #32 on: Jan 24, 2017, 13:16:31 »
Oh we do appreciate.. please keep updating

Offline Bevelheadmhr

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Re: A Blast from the Past
« Reply #33 on: May 14, 2017, 04:08:51 »
After a break, work has restarted on the Spares Bike, here's the latest update..


Offline stroker crazy

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Re: A Blast from the Past
« Reply #34 on: May 14, 2017, 05:59:11 »
Beauty in function!

Crazy
“Ride like the Wind” W.H.

Offline Bevelheadmhr

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Re: A Blast from the Past
« Reply #35 on: May 24, 2017, 08:59:05 »
The engine in the Spares Bike isn't the one we'll use to race it, as its just for setting up. The race engine, another built from spares is now coming together. The head for which returned from Roger Upperton last week, who recut the valve seats, flowed it and no doubt did other stuff which I don't understand, but it does look very pretty...

We'll use another billet block, with 1327cc pistons, as that's what we've got. Almost all the machining for the engine is done now, next up is to make a fuel tank to sits behind the headstock. It'll be a sort of pyramid shape, with the top cut off. Made from folded and welded sheet aluminium, I'd prefer Geoff the Welder to make it, but Jeff wants to try and make it himself, so we'll see how it turns out.

That said no matter how much you do yourself, to get the bike completed its still going to cost money. So with progress at a snails pace, I've decided to throw some money at it, and hope to get it running before we're all pensioners..

Here's some pics.. In the second pic I'm pointing to a wedge like spacer, which was added to the manifold to tuck the SU carb in closer to the engine.


Offline Bevelheadmhr

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Re: A Blast from the Past
« Reply #36 on: May 31, 2017, 13:43:54 »
Made a start on the fuel tank for the Spares Bike, its going to fit below the top rails, behind the headstock. Its going to look like a pyramid, with the top chopped off, on its side... Well, that's the plan anyway.

A sheet of alloy was marked and cut out to make the top, bottom, front and back, the left and right sides will be welded on once the alloy plate has been folded and welded up.

As I sort of expected trying to fold the plate, using a vice, some steel blocks and some effort, didn't go according to plan. The plate wasn't following instructions and refused to fold neatly.

So we stopped, and will take it to a nice man who owns a suitable folder & press to get it shaped probably.

Here's the sheet after our attempt at folding..


Offline Bevelheadmhr

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Re: A Blast from the Past
« Reply #37 on: Jun 03, 2017, 19:45:59 »
Got the main part of the fuel tank folded and cut. After checking the fit, the next step will be to drill the base to house the rubber mounts and outlet, then make the side pieces and finally weld it all together..


Offline Bevelheadmhr

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Re: A Blast from the Past
« Reply #38 on: Jul 10, 2017, 08:14:22 »
With the frame and main parts of the bike pretty much done, it'll soon be time to finally lift the bike from its frame jig. But first something would have to be done about that awful old seat unit. We did consider making one in alloy, which we may still do in the future, but for now we went for a cheaper option.

The old seat unit had sagged, twisted and cracked over the decades since it was made, and didn't even fit on the new frame in any case.

We sliced it up, narrowed it at the back, lengthened it at the front and build up the top and sides. That's what's going on in the photo below. All this work is just the start. The cut up old seat unit will be used as a template, which will be used to made a mould, which in turn will be used to make the new seat unit. That's a lot of hours of effort, but it'll give us what we need, with the only cost being fibreglass, resin and filler.

Here's a short video of all this, and you get to see the new frame jig too...