Crank identification

[865]

Can anyone identify this crank have a bloke trying to sell it to me as an A10 crank doesn't look like anything I've ever seen

[Swarfcut]

   Me neither. Deffo NOT BSA A10.

 Swarfy.

[JulianS]

Possibly 2 ends of an alternator Norton crank welded to a new central flywheel.

A different view may show the bolt holes where the Norton was attached to the original flywheel.

[bsa-bill]

OH no not A10, A10 throw pistons up and down together - that's the obvious point.

having said that does anyone recall someone modifying an A so that it was pistons 180 degrees apart, it just a passing thought in the bit of my brain that used to do memory that I have read something along those lines, tho it would involve much more than just modifying the crank

[865]

I knew it wasn't a10 but mystified to what it is
Wonder if the Gumtree guy is trying to scam me
Lol
Might be a Nigerian prince

[bsa-bill]

 Well looks like it's just not all cobwebs up there, found this, it's a pdf but load straight into my browser

[urlhttp://www.britcycle.com/manuals/Building%20offset%20crankshafts%20for%20British%20Twins.pdf][/url]

so be aware 865 looks like someone is trying to sell you a modified Norton Crank, with a picture of one identical to the one in the article -- mmmmmm

[865]

I got a message from another clown with a pic I saw on an English auction site

I think I'll post on the wanted section here will def be safer

[RDfella]

Wonder how they arranged the oil feed? If it's anything like the welding, not sure I want to kmow ....

[trevinoz]

Don't tell me that you need a crankshaft as well.

[ironhead]

Thats a modified Norton crank set to 90 degrees. sometimes used in A 65's. (could possibly work in an A10 as well ) At 89mm stroke, can make an interesting engine with less vibration.

[RichardL]

 Well looks like it's just not all cobwebs up there, found this, it's a pdf but load straight into my browser

[urlhttp://www.britcycle.com/manuals/Building%20offset%20crankshafts%20for%20British%20Twins.pdf][/url]

so be aware 865 looks like someone is trying to sell you a modified Norton Crank, with a picture of one identical to the one in the article -- mmmmmm

Geoff mentions an earlier article. I think this must be it:
http://www.britcycle.com/Manuals/Geoff%20Collins%201970%20Triumph.pdf

Richard L.

[muskrat]

G'day Fellas.
I agree, looks like a Notrun crank.
If your going to the trouble of offsetting a twin crank 72 degrees is the magic number, then there's the cam as well.
Cheers

[trevinoz]

If you are looking for a crank, Pete, I may be able to find one.

[865]

Thanks Trev
Mike stuck his hand up with one for me so will grab that one
Thanks anyway i appreciate it