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Douglas 1913 Model P motorcycle

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Douglas 1915 3 Spd-Gearbox and Clutch

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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?

Dave

2025-01-07, 19:16:39
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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.

Douglas gaskets

Started by trevorp, 27 May 2006 at 07:54

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trevorp

i have just bought a set of gaskets for what appears to be a mk3 to mk5  which i am going to get reproduced as it has a few gaskets ldmcc dont have but what has raised my eyebrows is there are 2 round copper gaskets that appear to be head gaskets as well as the normal copper head gaskets
if this is the case then may explain the head gaskets blowing out on various mk models although i have only worked on a few mark models i have never seen these gaskets before


Mark4S

#1
Quote from: trevorp on 27 May 2006 at 07:54
....which i am going to get reproduced ....


Hi Trevorp - do you intend to reproduce those gaskets with a view to selling them? If so,I would be interested in buying a set.

Regards, Mark4s

KiwiJohn

If you are making head gaskets for the Marks then please ensure they are thick enough to allow for the spigot depth.  I bought a set of gaskets from LDMCC and one head gasket blew after about 3 miles.  Fortunately Mr Douglas in his wisdom has given us two cylinders we could  (most) always get home.