Recent Posts

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Technical Section / Re: C12 fork spring length
« Last Post by chaterlea25 on Yesterday at 11:28:11 pm »
Hi GF
Every BSA that I have had through the workshop over the last12 years that needed general fettling or complete restoration needed new stanchions, on 1 or 2 where replacement plain steel stanchions had previously been fitted they
had rusted and pitted !! Hard chrome stanchions are a great improvement
It got to the stage where I used to keep one or two sets of  fork rebuild "kits" in stock
The standard type seals originally fitted allow water to pass into the works, the seal holders add to the problem as they do not have a drain hole, There are better seals available now that have a second lip which helps keep the water out.

John
2
Technical Section / Re: C12 fork spring length
« Last Post by Goldfinger on Yesterday at 10:18:12 pm »
Mine is also a 57 C12. I wonder if there was a bad batch of stanchions that year and a lot ended up getting replaced.
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Technical Section / Re: C12 fork spring length
« Last Post by bobber on Yesterday at 09:41:38 pm »
 I am re building a 57 C12 and my springs are about 1" short as well seems to be a common odity
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Technical Section / Re: C12 fork spring length
« Last Post by Goldfinger on Yesterday at 07:59:54 pm »
Hi Mrmend,
I had the same problem. Someone fitted longer stanchions but not longer springs.
Springs should be 10” Part No. 65-5390, 21 coils of .212? diameter wire, 10? long, 29 lbs/inch. 1 7/8" outside diameter, 1 7/16" inside diameter (254 x 47.625 x 36.513mm)
I used the following (£20 eBay) which fitted perfectly part number 89-5036. Approx 11.25” long,
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Technical Section / Re: C11 Brake Linings
« Last Post by camman3 on Yesterday at 07:52:14 pm »
I seem to remember Richie taking his Norton Big4 wheel to his workshop in the sea years ago, to skim the drum in situ because it was distorted. ....and him reporting how successful it was.  :-\
I still miss Richie's posts, particularly the madcap ones like the propelly bike :D

Graham
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Technical Section / Re: C12 wiring
« Last Post by Goldfinger on Yesterday at 07:51:27 pm »
Hi Brookie,
I think position 12, 13 & 14 become live when ignition is switched on.
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Technical Section / C12 wiring
« Last Post by Brookie on Yesterday at 07:29:34 pm »
Hopefully there's an auto electric biker man out there. I know some of you will hate this but I ride in town a bit and really need some indicators for obvious reasons.
I have got all the 6v kit from Paul Goff. Is there a port on that 19 hole ign/lighting switch that would give me a live feed when the ignition is on but be inert when off?
Perhaps this does'nt matter, I note that the stop light and horn are permanently live. I suppose the relay is'nt live until switched one way or tother. Just seems more sense to isolate it when ign. is off.
By the way I shall make any fitted parts totally removable so it can revert to standard trim.
Regards to all, John.
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Technical Section / Re: C11 Brake Linings
« Last Post by Tman on Yesterday at 07:07:25 pm »
Both good firms although I've found Villiers Services to be cheaper than Saftek lately.
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Technical Section / Re: C11 Brake Linings
« Last Post by MilitaryRon on Yesterday at 07:04:42 pm »
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Technical Section / Re: C11 Brake Linings
« Last Post by camman3 on Yesterday at 06:22:40 pm »
Good idea if drum is distorted or badly worn and needs to be skimmed oversize, so oversize linings can be fitted to suit....but as said, a very rare requirement on a C I would think. :-\

Graham
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