Author Topic: Let the fun begin!  (Read 637 times)

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Offline johnboyfully

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Let the fun begin!
« on: December 28, 2018, 03:04:48 pm »
I hope you all had a good Christmas. Well, I’ve started! Though I suspect dismantling and having someone else do the powder coating was the easy bit!! All that you see powder coated for less than £350 inc vat, that’s a great price I think. Now, onto reassembly. I’m thinking basic frame together first then forks and rear so the wheels and rear suspension can go on, then bit by bit? Any advice? There’s a real mix of nuts and bolts some ok but many worn or even extended by means of an internally threaded hex tube (tut-tut). If the only way to identify and replace where necessary is to trawl through the parts book I will do so but I see for other models some suppliers do “full packs” where all the fasteners required for a particular model are in one box. Now that would be handy. I’m going to make a start tomorrow. Wish me luck!!! JBF

Online Owen

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Re: Let the fun begin!
« Reply #1 on: December 28, 2018, 03:12:18 pm »
Good luck with the rebuild
1940 C12 (350cc)
1945 C10 & C11
1953 C10 & C11
Anyone want a B20 in need of a lot of tlc

Offline timsdad

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Re: Let the fun begin!
« Reply #2 on: December 28, 2018, 03:13:12 pm »
Yes, I'd build it up on its side first, JBF, on the bench on an old duvet or bit of carpet, then get it up on its wheels with temporary bolts through the engine mountings where needed.

When the engine and gearbox is ready to fit then I find it's easier to lay it all down again to get the mounting studs in.

Works for me!


Ray
Just a motorcyclist.

Offline timsdad

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Re: Let the fun begin!
« Reply #3 on: December 28, 2018, 03:14:17 pm »
You don't need luck, Owen, - just this forum!

Ray
Just a motorcyclist.

Online Owen

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Re: Let the fun begin!
« Reply #4 on: December 28, 2018, 04:15:16 pm »
Or a big hammer?
1940 C12 (350cc)
1945 C10 & C11
1953 C10 & C11
Anyone want a B20 in need of a lot of tlc

Offline wooders81

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Re: Let the fun begin!
« Reply #5 on: December 28, 2018, 05:26:05 pm »
Aaaaah, that would account for the lack of spanners in your toolbox!
Rebel without a clue! Oxfordshire lad

Offline johnboyfully

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Re: Let the fun begin!
« Reply #6 on: December 28, 2018, 05:34:05 pm »
Thanks gents I’ll keep posting updates on progress JBF

Offline chaterlea25

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Re: Let the fun begin!
« Reply #7 on: December 28, 2018, 09:56:48 pm »
Hi JBF,
I hope you sorted out all the shagged out threads and worn frame joints and stand pivots before the powder coating !!!!!.
Several different approaches will be needed to remove the coating where the bolts go through without doing damage

John

Offline Lostboy

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Re: Let the fun begin!
« Reply #8 on: January 04, 2019, 10:52:25 am »
Hi JBF
how is it going with the rebuild since 28.12.2018?
I have a C12 from 1957 and are in the progress of assembling it like you.
I also had some of the parts powder coated.
All nuts and bolts were useless ( too soft ) after I've dismantled the bike, so I replaced them with stainless or had them made.
My biggest issue at the moment is to source sprockets.
Does anybody on this forum has a suggestion where I can get them?
Reiner
The lost boy

Offline johnboyfully

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Re: Let the fun begin!
« Reply #9 on: January 04, 2019, 07:21:37 pm »
Update of sorts! I ordered a mixture of new nuts and bolts from Nooky’s Nuts but due to Bank Holidays they only arrived today so I will start reassembly tomorrow. Which sprockets are you after? The guy vapour blasting the ending znd gearbox says he’s found a supplier of the rear drive sprocket, I’ll check with him and post the details. He noted my sprocket is probably the original as it’s rivetted, replacements are apparently bolted on. But I’m sure someone will clarify. I know some threads and holes in the frame will need attention during reassembly. I’m looking forward to the reassembly but sure there will be issues along the way!! JBF

Offline Biggles

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Re: Let the fun begin!
« Reply #10 on: January 04, 2019, 08:18:51 pm »
Rear sprocket was riveted on when the bike left the factory replacement sprockets these days tend to be bolted on by owners I am sure there has been previous thread on this.

I think in my shed I have some ons rivets which I never used on my c12 as I could not find the tools to fit them
1954 C11g
1960 C15
1960 b40 ss90

Offline Lostboy

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Re: Let the fun begin!
« Reply #11 on: January 06, 2019, 06:21:17 pm »
Hi,
the rear sprocket on my bike is riveted on. Looks fairly worn, but usable.
Sprocket on clutch is usable.
Small sprocket on gearbox is completely worn - that's the one I'm after.
I found this rear sprocket on german Ebay
https://www.ebay.de/itm/BSA-rear-Sprocket-Sprocket-rear-Rear-Sprocket-Sprocket-011-402/291891884763?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649
It's been sold without bolts or rivets.
I haven't got BSA part numbers, but this dealer claims it to be for a C12 from 1954-57.
Where could I get the small gearbox sprocket from and what is the part number?
The lost boy

Offline camman3

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Re: Let the fun begin!
« Reply #12 on: January 06, 2019, 07:05:22 pm »
That sprocket does indeed look like it is from c12, being recessed to clear brake plate. Tip, if you are bolting it on, use dome head allen screws that will clear brake plate, + shakeproof washers and loctite on nuts.
The gearbox sprocket number you were asking for is 29-3609, Draganfly say they no longer supply....but may be worth a call :-\...Cornucopia have sold out as well.
Have you tried Britbits or Surrey cycles?

Graham
1957 C12
In sunny (sometimes) Christchurch, Dorset, UK

Online Owen

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Re: Let the fun begin!
« Reply #13 on: January 06, 2019, 07:11:54 pm »
The eBay add mentions 29-6290 which is a 47 tooth sprocket according to draganfly and they have it in stock. At £37.80 Inc VAT.
https://www.draganfly.co.uk/index.php/triumph-shop/twin-cylinder/product/5487-ring-sprocket-47t/category_pathway-2
1940 C12 (350cc)
1945 C10 & C11
1953 C10 & C11
Anyone want a B20 in need of a lot of tlc

Offline Lostboy

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Re: Let the fun begin!
« Reply #14 on: January 06, 2019, 07:35:14 pm »
THANKS for your help !
Let you know how I'm getting on.
The lost boy