Douglas - For Sale Items

Douglas 1913 Model P motorcycle

Douglas - Wanted Items

Douglas 1915 3 Spd-Gearbox and Clutch

Recent Posts

Recent posts

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#61
Douglas Motorcycles and Parts Wanted - Private / Cw 350 need clutch assembly
Last post by Len McIntosh - 22 Oct 2025 at 20:19
Hi All
I have a 1925 Cw 350 and require the whole clutch assembly
front brake assembly and front guard
Any help greatly apreciated

#62
General Douglas Discussion / Re: 1913 douglas big end
Last post by Adam55 - 22 Oct 2025 at 19:00
Thank you jonathan, much appreciated.
#63
General Douglas Discussion / Re: MK4 chain adjuster
Last post by Ken J - 20 Oct 2025 at 11:56
Many thanks!
#64
General Douglas Discussion / Re: MK4 chain adjuster
Last post by richson - 20 Oct 2025 at 11:30
Hi Ken,

I used TRIUMPH ADJUSTER,CHAIN 37-2089 available on ebay. These have an offset like the original parts but are more robust.

Cheers, Neil
#65
Douglas Motorcycles and Parts Wanted - Private / 1950 MK4 Fuel Tank
Last post by Dave. - 19 Oct 2025 at 03:51
I am looking for a fuel tank in good condition to suit a 1950 MK 4, should anyone have a spare tank they wish to sell I would greatly appreciate it.

Dave.
#66
General Douglas Discussion / Re: 1913 douglas big end
Last post by Jonathan Hewitt - 18 Oct 2025 at 21:07
Hello Adam, the outer dimension will be entirely dependent on the size of the conrod after cleaning up ( if it needs it )
Eddie did suggest in one of his posts that soldering the shells to the conrod before final finishing was a good way to keep it all tight.
Regards Jonathan
#67
General Douglas Discussion / 1913 douglas big end
Last post by Adam55 - 18 Oct 2025 at 14:48
Would anyone be willing to help with some technical details that a friend needs in order to machine me new bronze big ends for my 1913 douglas?

I think he just requires the outer dimensions.

Any help would be greatly appreciated.

Regards,

Adam
#68
General Douglas Discussion / Re: MkV Oil pump and filter
Last post by eddie - 18 Oct 2025 at 09:12
Paul, 
       There is nowhere in a Douglas oil pump for any foreign matter to collect. With the triangular cover plate removed from the bottom of the pump, you can see into the main chamber and the ports - a visual inspection is all that is needed. At this point, I would leave 'well enough alone' - other than just removing the 2 vanes and spring to check for any wear.

  Regards,
                Eddie.
#69
General Douglas Discussion / Re: MkV Oil pump and filter
Last post by Pallijen15 - 17 Oct 2025 at 16:43
Quote from: eddie on 12 Oct 2025 at 17:57 Paul,
  While you have the pump out, remove the circlip and take the gauze strainer off to give it a wash. As I have said, it is only a strainer, and not really a filter, so washing it in situ may push foreign bodies into the pump. When you are ready to replace the pump, the thicker (cork) gasket goes between the pump body and crankcase - the thinner (paper) gasket goes between the pump body and the end plate, controlling the end clearance on the pump rotor and vanes. My personal preference is to just smear the gaskets with grease on assembly, rather than use gasket compound.
  Hope this helps,
                          Eddie.
Hi Eddie, is it possible to dismantle the pump without too much difficulty in case anything has got into the pump or can I spray through some WD40 or something? Thanks 
#70
Douglas Motorcycles and Parts For Sale - Private / Re: 2/34 project for sale
Last post by phil smith - 14 Oct 2025 at 06:21
hi there
i will willingly send pictures .
thanks
Phil.
8)
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