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Douglas 1913 Model P motorcycle

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Douglas 1915 3 Spd-Gearbox and Clutch

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Dave

2024-06-11, 21:02:05
Have you tried the new Drafts feature yet? I just lost a long message today and learned my lesson. It is a good idea to save a draft of any long post you are writing. You can then just keep writing and keep saving a draft, knowing you have a backup if there is a glitch. The draft is automatically deleted when you post the message.

Dave

2024-06-08, 19:30:04
For Sale
xman has two very nice 1950's machines available - a green 1950 mk4 and black 1951 mk5 - both in good condition and running well.

Dave

2024-06-07, 03:13:36

Dave

2024-06-03, 09:23:05
For Sale
Duncan has just listed his green and cream 1957 Dragonfly for sale with spares and documents.

Dave

2024-06-02, 09:34:05
Parts avalable
alistair still has parts available - barrels, carburettor, castings - see all listings.


Dave

2024-06-01, 19:33:27

Dave

2024-05-28, 01:09:46
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Douglas 2 3/4hp and 4hp Gear Knobs in Exotic Wood and Tanktop Parts

Started by pvn06, 23 Sep 2018 at 12:32

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pvn06

Hi, Paul from www.RacingNorton.co.uk here again.

I have been working on my own Douglas 2 3/4hp project again and am currently working on the tanktop parts.  I had been looking at the gearknobs used on two speed gearchange lever models - fitted to both the 2 3/4hp and larger 4hp models I believe. I already had a modern replica pattern of correct profile but wanted something genuinely period - i.e. wood.  I notice pictures of original items had a dark wood finish, but I also fancied something in a lighter shade so have made versions in both Wenge (dark) and Yew (light) hardwoods. 
As well as making for myself I decided to make the jigs and write CNC programs to manufacture these in batch's, as well as the original profile gearknob bolt CNC machined in stainless steel.  Finally, I have just finished making the distinctive barrel headed screws that hold the tank top 2 speed bronze High/Low casting. 
For all of these I have used originals for the profiles and threads and if I say so myself - don't look too bad. 

I have added all of these items to the Douglas section of our www.RacingNorton.co.uk catalog:  https://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

As always - to purchase, just go to the item and select, place order and my daughter Steph (who does the Norton parts mail order business full time) will email you when order picked with final postage/payment details.

Other Parts I will be listing shortly:
- Black etched stainless spoke set for beaded edge rims (measured for early Douglas hubs)
- Cylinder head inlet/exhaust nuts - CNC machined in stainless steel, just writing programs for these at the moment.

And finally - you will see them in the listings anyway, but below are a few photographs of the tanktop parts:


graeme


pvn06

Thanks Graeme, nice of you to say.
Back chomping out SOHC Manx Norton engine bolts on the CNC machine now - but planning to make 2 3/4hp barrel retaining nuts and inlet/exhaust valve caps in stainless steel next . . . email us on normal sales@racingnorton.co.uk email if anyone interested.

Also, planning to do another article soon, covering my own restoration progress - as well as other parts accumulated for a second bike (and still looking for that elusive 1913 OHV engine if anyone has any parts!)

best wishes
Paul
www.racingvincent.co.uk

Doug

Not sure if they are the same, but part way through a run of five hundred 5/16-25 nuts used on the DT cylinder head and lower crankcase bolts in heat treated 17-4PH stainless steel. These have a smaller than normal hex size, and with a part number of z385 something clearly carried over from the 2-3/4hp days. Not sure if they are the same as the 2-3/4hp barrel nuts.

-Doug

Ian