six douglas crankshafts --yes 6-- for sale.

[alistair]

can you identify these douglas crankshafts and rods.
another lot from the massive hoard of bits recently acquired but not needed so for sale.
number them 1to 6 from top left to bottom right.
identify them for me.
buy them. individually or as a lot.
simples.
the rods all turn freely.
they have been stored oily.
so are probably useable.
let me know.

[Col]

Hi how much for the 23/4 crank left side bottom  thanks

[alistair]

£250.
plus carriage

[Sunbeam36]

How much for the bottom left no 6 crank .
Cheers clark 

[alistair]

no one able to identify these?

[JLO]

Hi Alastair, do all the top row cranks have oilway passages through the centre of the shaft, Regards John

[Doug]

Crankshaft #1 I can see the flat on the timing side journal to drive the crankcase breather disk. That would make it 1931-37, 250 or 350cc. At some point between 1931 and 1935 they changed the conrod design from a press in race (that was prone to work loose) to a integral case-hardened surface for the bearing rollers.

I cannot see if #2 & #3 have the flat. But the center web is less finished and the throws have the earlier look of the EW. So 1926-1930 350cc.

I could use a crankshaft for my 1931 350cc A31, but the several examples I have acquired and disassembled was heavily worn on the center web due to the rollers walking sideways and i just don't see my luck changing! 

-Doug