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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?

RacingNorton - Douglas 2 3/4hp fastenings in Stainless Steel - CNC

Started by pvn06, 02 Apr 2018 at 12:41

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pvn06

Hi,
Just wanted to let owners of early Douglas 2 3/4hp models know, that I am now starting to offer some CNC manufactured items from our normal online catalog:
www.RacingNorton.co.uk

At this point in time (April 2018), I am able to offer just the small distinctive square head bolts as fitted to the original Douglas 2 3/4hp brake pedal assemblies, but over the coming months I may be offering more parts - as I progress with my own Douglas build and get more machine time on our CNC machine which is normally manufacturing Norton parts.

As background, I specialise in the manufacture of parts for SOHC (cammy) Norton models - i.e. the International Norton and early racing Norton engines (M30/early SOHC Manx), which I have been doing for the last 11 years.
We have two websites - our online transactional website:  www.RacingNorton.co.uk, and my original 'restoration enthusiast' website: www.RacingVincent.co.uk (where there is a selection of articles on the bikes I am interested in and restore - i.e. Vincent's, Norton's and occasionally  - Douglas's!).

If you wish to view and order parts, then please visit www.RacingNorton.co.uk.  You will see in anticipation of making more parts in the future I have created a new section specifically for Douglas 2 3/4hp parts (although a bit sparse at the moment!):
http://racingnorton.co.uk/epages/4c675e64-813f-4c0a-8926-87a680c962a0.sf/en_GB/?ObjectPath=/Shops/4c675e64-813f-4c0a-8926-87a680c962a0/Categories/Items/8_Douglas_2_34hp_Parts

When ordering parts, please read our general T&C's first, on the homepage, then just place order electronically.  My daughter Steph does all the mail order side and will contact you with payment/postage details when picked.

Let me know if there are any particular Douglas 2 3/4hp fasteners or parts you need, I may consider making in the future if enough interest.  For example, I am considering having a batch of the early '5 hole' two speed gearbox chain sprockets made, as I need one for my own Douglas build.
My email is paul.norman@racingvincent.co.uk 
Please don't be offended if I do not reply immediately, I run the parts business in addition to a full time job, so am often behind with a sea of email!

Best wishes
Paul Norman
www.RacingVincent.co.uk


Update: 12/5/18

Hi Everyone,
We now have early style square head brake pedal and brake pedal locking ring bolts available in CNC machined/milled stainless steel.  We have also machined square clevis brake rods for the early type Douglas 2 3/4hp models, as well as the same clevis type available to fit the selector arm of early 2 speed gearbox's.  See photos below.
All are now available on-line from the Douglas section of our RacingNorton website, just place order online, we email back with postage cost and payment details:
http://racingnorton.co.uk/epages/4c675e64-813f-4c0a-8926-87a680c962a0.sf/en_GB/?ObjectPath=/Shops/4c675e64-813f-4c0a-8926-87a680c962a0/Categories/Items/8_Douglas_2_34hp_Parts