Douglas - For Sale Items

Douglas 1913 Model P motorcycle

Douglas - Wanted Items

Douglas 1915 3 Spd-Gearbox and Clutch
 


Advertisement

Quick Comments

Reminders, links to interesting topics, bump your own topic, quick comments or any short message of interest to members. Try it out!
Please note - 500 character current limit


Dave

2025-01-07, 19:16:39
Forgotten your password?
Click the 'Log in' button in the main menu, then use the 'Forgot your password?' function to create a new one.

The new password will be sent to your email address. If your email address has changed since your last login, that method won't work as the email will go to the old address in your profile.
In this case, use the 'Contact' option in the main menu to send us a message and we can issue a new password.

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
Welcome to the new site!
Recommended viewing for a fast start...
 - Quick Tour of the Front Page
 - Quick Tour of the new Attachments
Learn all about attaching photos in the User Guide. Any problems with anything please Contact us     Faulty links fixed - 01June2024



Advertisement

1928 EW Questions

Started by patrickhowell, 29 May 2015 at 10:09

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

patrickhowell

As a new member, just come in on this discussion. I have a 1928 'EW'. First, why do they continue to call it an EW when that designation ceased the previous year, and how can I positively identify my model, which has footboards?
Second, can anybody give me a simple explanation as to how to operate the dual oiling system? I have read the manual, but am not much the wiser; I am reluctant to run the bike further without knowing what I should be doing!
Anybody got a similar model near to Stratford-upon-Avon? Thanks

Dave


patrickhowell

The Douglas engine is running nicely (ignoring oil leaks from various parts of the engine) except that it leaks petrol from the two holes/ vents on each side of the main body of the Brown and Barlow carb. Aside from wasting fuel, it's a fire hazard. The carb has been thoroughly cleaned, and the float set on the one and only notch in the float needle, so can anybody suggest a cause? All the washers have been replaced, but in any event, it's coming out of said holes. The carb is otherwise functioning well.

graeme

Is the float needle actually sealing on its' seat? If it isn't, the carby will flood regardless of the float height

Ian

The needle may not be correct - in which case you would need to work out where the groove should be and add one

Doug

QuoteI have a 1928 'EW'. First, why do they continue to call it an EW when that designation ceased the previous year, and how can I positively identify my model, which has footboards?

It is called a 350EW (or EW350) solely due to convention. From late 1925 through 1929 there were only changes in details and options. Just because Douglas decided to change the model designations to freshen up the range does not mean the present day enthusiast slavishly follow suit. Just as all of the 2-3/4hp models get lumped together, until you need to start distinguishing them by using the model designations and year.

There were two lightweight models in 1928, the A28 and the B28. Judging by the catalog the visible difference was the use of foot boards, fishtail on the silencer, and a sprung, cloth saddle on the B28; and use of the older pan saddle and cheaper foot pegs on the A28 (the cheapest model offered). However customers could specify to a certain extent which options they desired. Nor am I aware of a different prefix code being used to differentiate between the A28 and B28. So determining after the fact is likely impossible. Depending on how you trim it out, it could be either.

Electrics or acetylene lighting were an extra option for either model. A twist grip was offered as optional extra on the B28, but could probably be had on the A28 with an upgrade of the carburetor too (from the gauze to the needle type). Though by that point you might have as well just ordered the slightly better appointed B28 at 44 pounds even verses 42 pounds and 10 shillings for the A28.

-Doug

patrickhowell

I have done a test, with the float chamber detached, and jury rigged to a feed pipe. The chamber was filled via the pipe, and when the float reached top dead centre, there was no loss of fuel. The fuel level exactly coincided with the level at the top of the main jet. Surprisingly, the amount of travel of the float up and down is as little as 5mm.
That of course was a static test. It occurs to me that what might be happening, and this is a pure guess, is that the engine vibration is causing the float to wobble - it is not a close fit in the chamber- and thereby unseating the needle. Interestingly, no fuel is emerging from the two holes in the float chamber top.

 
Advertisement