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Douglas 1915 3 Spd-Gearbox and Clutch

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Lat Fuller

2025-07-20, 02:39:50
I am pretty desperate for a rear cylinder for my veteran Douglas 1917 2 3/4hp "W" model.   I there is anyone who may have one of these that can be re-sleeved or know where I may find one I would be very pleased for the help.  I have a number of engine parts that I can exchange such as matching crankcases, conrods, crankshaft, flywheel etc. Any help appreciated.

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?

Year on Timing Cover (TS24)

Started by Frank Lyn, 22 Feb 2010 at 21:27

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Frank Lyn

Hello,

I just picked up a TS/24 with engine number (66nnn) and frame number (68nnn) which should put it squarely in the middle of production for 1924. The bike was recently registered (by the previous owner) as a 1924, sold to me as a 1924,  and I believe it to be a TS/24

BUT

There is a neat stamping on the timing cover "Douglas 1925" (two lines).  Should this be any cause for concern or can I just write it off as the timing cover having been replaced sometime in its history?

Are there any characteristics to distinguish a TS/24 from a TS/25?  To my untrained eye, all TS's look the same.

thanks.


Chris


Hi Frank
    I think you may just write it off as a replacement second-hand timing cover. It is quite common for the large headed screw in the end of the crankshaft that conceals the spring and ball to become loose when it acts like a milling cutter eventually cutting its way right through. It is then easier to replace the timing cover than to execute a neat repair. It is worth while always using a spot of Loctite on the thread of the screw to avoid this occurring.  Replacement new timing covers were also available from Douglas with no engraving on the cover. Chris.