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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?

Douglas wheels?

Started by Rakotulkki, 26 Oct 2009 at 16:46

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Rakotulkki

Hi forum,

I am new here, hi all. I`m looking info about these wheels that i have. I think that these are from postwar Douglas, can someone confirm this? 40 spokes both of them, front hub is very "thin" and it has 7" brake. Thanks for any info.

Best wishes,

Jami




eddie

Jami,
         The rear wheel is standard Douglas as used on all postwar models from the 1947 T35 Mk1 through to the early (1955) Dragonfly. The front wheel probably came from a Mk4 or 5 as it is painted metallic blue, but will fit all postwar models except the 80 & 90 Plus and late Dragonfly.
                                   Regards,
                                          Eddie.

Eero

Terve Jami.
Mulla on yhdet Douglas 1947 Mark 1:sen vanteet. Ovat olleet kromatut, mutta paikkailtu noilla kaminaväreillä.
Muuten ne ovat hyväkuntoiset ja niistä saa hyvät maalivanteet hiekkapuhalluksen jälkeen.

Pinnat tilasin Juurikkalalta.

Terveisin

Eero

Rakotulkki

#3
Eddie, thank you very much. Did they make their own hubs/brakes, or did they use some other manufacturer makes( British hub, Harwil...)? What about this front wheel with 8" brake, i think that this is from same manufacturer made.

Cheers,

Jami

Eero, onko pyörät sinulla ylimääräisenä? Laittele vaikka yksityisviestiä.





eddie

Hi Jami,
             Early veteran Douglases had Chater Lea hubs - then after WW1 Douglas made their own hubs of varying designs up until 1956 when they 'bought in' British Hub units in an attempt to cut down the manufacturing costs of the Dragonfly.
          Regarding the wheel with the 8" drum - whilst very much like the Douglas design, the rivetted construction suggests that it may not be Douglas. Hubs used prior to WW2 had the brakedrum attached on a tapered spline arrangement with a threaded retaining ring.
                                  Regards,
                                            Eddie.

Rakotulkki

Hi Eddie,

Thanks for clear up this. I tought that it was so similar than postwar hubs. Can anyone identify this wheel with 8" brake?

Regards,

Jami