Douglas - For Sale Items

Douglas 1913 Model P motorcycle

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Douglas 1915 3 Spd-Gearbox and Clutch

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Lat Fuller

2025-06-04, 05:57:00
Does anyone have the specifications for the oil inlet valve spring for early 2 3/4 engines - Part number 424.   I have tried to order one from the club spares but apparently Jeff Swan is indisposed at the moment.

skapoor

2025-05-19, 09:23:12
I am looking for a carburettor for veteran Douglas motorcycle engine-13651. Could you please help me with this?

Dave

2025-01-07, 19:16:39
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Dave

2024-06-11, 21:02:05
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Crankshaft

Started by ManfrerdSt, 05 Jun 2012 at 16:19

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ManfrerdSt

05 Jun 2012 at 16:19
Hi all,

this is the thread of my T6 - 1931 crankshaft timing side.

What did it for a function?
What is being screwed?
It is apparently not so important because the bike was so driven.

Regards Manfred

Doug

#1
06 Jun 2012 at 02:21
Manfred,

There would have been a nut to retain the timing pinion gear. It would seem someone has center-punched the journal for the timing pinion to make it a tight fit and dispensed with the nut. It is a very poor engineering solution.

Doug

ManfrerdSt

#2
06 Jun 2012 at 09:15
Ah, there is a cotter CASTLE NUT with it.
Yes, it's botched, but unfortunately not the only one.

Regards Manfred

David Lawrence

#3
06 Jun 2012 at 12:37
Hi Manfred,
Doug has answered your question, I am curious how the engine ran without the locking nut!
The Douglas Club does have copies of both the original manual and the parts list for the S6 models, they cover T6 ,S6, S5, C31, D31 and E31. Sadly a few of the pictures have suffered from early photographic techniques but they do show all the componants.
Except of course your missing nut! it is listed in the part numbers as 11163. It would have cost you the princely sum of 3 old pence! in 1931.
Should you not already have copies, the club sells them for £7-00 each plus postage. As treasurer of the Club I am quite happy to send you one or both and collect your money! :lol: :roll:
If you would like to order please write direct to my email with your address.
Dave

ManfrerdSt

#4
06 Jun 2012 at 13:37
Hi Dave

I have the spares list on 04.07.2012  at dougpostwarspares@btinternet.com (is so in New Conrod) ordered. I still get no response and cunning.

Manfred

David Lawrence

#5
06 Jun 2012 at 15:33
Manfred,
OK, if the lads have it hand no problem, they should be with you in a few days, The prewar spares handle incoming orders in turn so it may be a week or so depending how much work they have on.
Cheers
Dave

MRD

#6
06 Jun 2012 at 17:29
Hi Manfred & Dave
Its probably better to to sort the books out between yourselves, I'm guessing Kevin may be out of stock as he only had a limited supply. I know the available club spares list was sent out in the reply email.  Manfred's email went to the correct email address and not the one stated in the posting.
Regards     Martin
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