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Motorcycle Discussions => British Bikes => Topic started by: albert on January 06, 2017, 04:55:51 PM

Title: Wanted: sprockets for 1927 Sturmey Archer 3 speed heavyweight gearbox
Post by: albert on January 06, 2017, 04:55:51 PM

Wanted:
25 T mainshaft sleeve gear  and intermediate mainshaft sliding pinion 21 T.
Any new spares available?
The 3 gear pinion dogs are worn.
email: axel.winklbauer@gmx.de

Thank you for your help.
Yours sincerely
Albert

Title: Re: Wanted: sprockets for 1927 Sturmey Archer 3 speed heavyweight gearbox
Post by: mini-me on January 06, 2017, 05:58:36 PM

Nicht Kettenräder, sondern Zahnräder in unserem Jargon.

not sprockets, but cogs in our lingo.

A sprocket runs a chain.

pedantry out of the way, I doubt there are any spares around; you may do better  around the continent, I have sometimes seen complete SA boxes from places such as Czech Republic on ebay, probably as worn out as yours though.

Title: Re: Wanted: sprockets for 1927 Sturmey Archer 3 speed heavyweight gearbox
Post by: albert on January 07, 2017, 09:30:38 AM

hello,
sorry,for my faulty description, I have already made some corrections, so, you can sleep well.
Yes, I am an idiot from Germany and because I coudn`t find any spares on the Continent,yet, I have published this advert together with attached beautiful photo to prevent any misunderstanding.
Some years ago, I have got one of those new gears from Wales for my beloved Royal Enfield V-Twin.

Title: Re: Wanted: sprockets for 1927 Sturmey Archer 3 speed heavyweight gearbox
Post by: mini-me on January 07, 2017, 11:27:33 AM

No need for apologies Albert, I wish I was as fluent in German as you are in English.

Heavyweight Sturmy boxes are always a problem, as they are in demand for several makes of expensive bikes.

Hace you tried http://www.cornucopia-enterprises.de/  ? english guy in Germany has a lot of contacts on the continent, but you will be paying a high cost whereever you get  a complete box, £4-500++++ for the  ones I've seen on ebay here.


PS
I just looked on ebay an there are several on a world wide search, there is this one in Denmark,

http://www.ebay.co.uk/itm/sturmey-archer-gearbox-/282310518090?hash=item41bb04a54a:g:h7YAAOSwZQRYaQZJ

But I think yours is a four stud one?
so many variations is the problem

another one in bits here

http://www.ebay.co.uk/itm/Sturmey-Archer-gearboxes-/252712480305?hash=item3ad6d66e31:g:eCAAAOSwopRYb5ms







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Title: Re: Wanted: sprockets for 1927 Sturmey Archer 3 speed heavyweight gearbox
Post by: chaterlea25 on January 07, 2017, 01:00:37 PM

HI Albert,
Have you investigated getting the gear dogs built up with weld and remachined ?
The rest of the gears look ok
John

Title: Re: Wanted: sprockets for 1927 Sturmey Archer 3 speed heavyweight gearbox
Post by: murdo on January 08, 2017, 08:34:32 PM

I have successfully welded the tips using 'hard surfacing' rods with a tig without heating the rest of the gear too much and then grind to correct shape.  Still going as far as I know.