Douglas Motorcycle Technical Articles

Fasteners and Threads used on 2 3/4 hp Douglas Models 1910 to 1926

Started by Chris

Replies: 7
Views: 33,414

04 Aug 2022 at 21:19
by Dave

Maintenance of the Douglas 2 3/4 hp upto 1925

Started by Dolman

Replies: 1
Views: 13,285

07 Sep 2025 at 21:03
by Dave

Recreating the RA brakes

Started by Doug

Replies: 9
Views: 34,831

06 Sep 2025 at 06:49
by Doug

vokes oil filters

Started by geoffshobbies

Replies: 5
Views: 11,819

28 Jun 2025 at 18:12
by eddie

The EW duplex oil pump described and illustrated

Started by Doug

Replies: 6
Views: 21,449

07 Aug 2023 at 23:54
by Kdxdoc

Article on Rebuilding the Douglas TS

Started by SunbeamS7

Replies: 0
Views: 2,866

25 Jan 2023 at 20:31
by SunbeamS7

Which screws do I need?

Started by Domas

Replies: 8
Views: 4,378

18 Oct 2022 at 08:39
by Domas

2 ¾ hp Gearbox vs Engine Serial Numbers 1907 to 1926

Started by Hutch

Replies: 13
Views: 5,226

13 Sep 2022 at 08:43
by graeme

MOVED: Douglas 4HP rear frame section

Started by Doug

Replies: 0
Views: 1,990

26 Jul 2022 at 18:41
by Doug

Douglas TS Fork Spindle drawings

Started by Dave

Replies: 1
Views: 2,504

14 Jun 2022 at 22:46
by Marcus

Manual Oil Pump

Started by Chris

Replies: 12
Views: 22,974

01 Jun 2022 at 12:20
by Peter54

Illustrated tour of the pre-war Douglas o.h.v. crankshaft

Started by Doug

Replies: 25
Views: 32,969

25 May 2022 at 11:48
by SteveW

Drawings for non-return oil valve, Models CO, 600EW, F28, 350EW

Started by Doug

Replies: 2
Views: 13,649

24 Oct 2021 at 08:47
by Neilj

27 600cc SV Terrys seat

Started by Daren W Australia

Replies: 0
Views: 2,702

13 Sep 2021 at 01:23
by Daren W Australia

Mark Four crankshaft rebuild

Started by franky

Replies: 3
Views: 5,915

21 Jun 2021 at 23:19
by Paul Taliesin

The Heavyweight Aero models, 1936-38

Started by Doug

Replies: 3
Views: 4,293

08 Jun 2021 at 06:41
by Doug

Running instructions for the mid-thirties 600cc Aero model.

Started by Doug

Replies: 0
Views: 3,176

11 May 2020 at 19:07
by Doug

Okada Tyres

Started by Alan Cun

Replies: 0
Views: 3,014

24 Apr 2020 at 12:27
by Alan Cun

gearbox MK1

Started by gmh

Replies: 6
Views: 9,480

06 Mar 2020 at 20:10
by gmh

1934-36 OW/OW1 models, a study in contrasts

Started by Doug

Replies: 4
Views: 5,854

03 Dec 2019 at 21:26
by cardan

belt and oil pump 2 3/4 HP

Started by andertheke

Replies: 13
Views: 8,886

24 Jul 2019 at 07:03
by Ian

carburettors

Started by phil1

Replies: 4
Views: 5,913

24 Feb 2019 at 09:41
by phil1

Post war engines.

Started by Hampshirebiker

Replies: 6
Views: 9,360

18 Jun 2018 at 08:05
by phil1

mk.v front suspention

Started by phil1

Replies: 2
Views: 5,038

11 Jun 2018 at 08:11
by phil1

90+ oil pumps and timed breather

Started by roger h

Replies: 4
Views: 5,750

24 Apr 2018 at 10:09
by eddie

EW pump brackets

Started by hartleys1

Replies: 0
Views: 3,916

04 Feb 2018 at 19:18
by hartleys1

Seats Carriers Brakes and the remaking of

Started by Alan Cun

Replies: 7
Views: 14,396

21 Nov 2017 at 23:38
by roger h

Engine recommissioning

Started by dragonmk5

Replies: 1
Views: 8,046

27 Oct 2017 at 17:06
by phil1

Mark Series Maintenance Guide

Started by Dave

Replies: 2
Views: 15,616

08 Oct 2016 at 21:23
by Doug

Flywheel extractor for 750cc Mastiff

Started by Dewey

Replies: 4
Views: 7,188

09 Jul 2016 at 22:48
by Dewey

Bright Spark Magnetos

Started by Alan Cun

Replies: 4
Views: 9,022

26 Jan 2016 at 11:48
by kev

One Make Fanatic

Started by AndyH

Replies: 0
Views: 4,940

14 Aug 2015 at 23:13
by AndyH

Douglas Plus 90 article by LJKS, Motorcycle Sport 1963

Started by AndyH

Replies: 0
Views: 5,198

14 Aug 2015 at 15:29
by AndyH

Reconditioning Postwar Crankshafts

Started by eddie

Replies: 10
Views: 15,944

15 Feb 2015 at 08:09
by hvirtanen

Designed Clearances of T35 engine

Started by twirl

Replies: 1
Views: 5,639

27 Dec 2014 at 15:43
by David Lawrence

Article: The Missing Link, Virtual DW

Started by Doug

Replies: 1
Views: 11,943

09 Jul 2014 at 14:42
by Doug

Mk4 Gearbox Final Drive

Started by dragonmk5

Replies: 0
Views: 5,449

24 May 2014 at 11:04
by dragonmk5

Prevention of rust on postwar fork bottom cap

Started by twirl

Replies: 0
Views: 4,733

15 Jan 2014 at 11:42
by twirl

Mysteries of the Manual Oil Pump Unveiled

Started by Chris

Replies: 1
Views: 10,147

29 Oct 2013 at 22:03
by goldflash650

ferodo clutch and brake linings specifcations

Started by polly

Replies: 0
Views: 5,919

30 Jun 2013 at 19:51
by polly