Douglas - For Sale Items

Douglas 1913 Model P motorcycle

Douglas - Wanted Items

Douglas 1915 3 Spd-Gearbox and Clutch

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

Gearbox Oil

Started by clee, 14 Sep 2006 at 06:16

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

clee

G'day all from sunny Queensland. I have looked through the site and unless i am blind[ and thats possible], i have not been able to find what oil or oil / grease mixture to put in gearbox's of 2 3/4 hp and 4 hp Douggies. Anyone?  I have one 2 3/4 almost ready to go.  thanks all,  Colin Lee
colin lee

Chris

Any grade of oil leaks out of the gearbox quite quickly. I have stripped gearboxes in which grease has been used and the gears run almost completely un-lubricated in clear channels between solid walls of grease. Some people uses a mixture of oil and grease but the best material I have found is called semi fluid grease. I was given a small flask of this some years ago and have found it to be excellent. Leakage is negligible but because it creeps and is self levelling the gears are always well lubricated. My flask has lost its label so I do not know what grade it is. It comes in three grades, 0, 00 and 000. It very difficult to get hold of in reasonable quantities. It is used extensively in agricultural machinery and Internet searches show that suppliers are few and far between and they like to sell it in drums. A contact in the London Douglas Club recently found a source in Southampton in the South of England in a do-it-yourself size container but it was the 000 grade and that was much too thin and leaked almost as badly as oil so I think it must be the 0 grade that I have (mine is red and came from the USA) but my supply is almost exhausted so I am actively seeking a new source.

Ian

Colin, Penrite make a semi-fluid grease called just that !! It is labelled as recommended for burman gearboxes but is good for any type of box needing semi-fluid grease. I also used a penrite oil called Transoil 250 - very think but not as much as the semi-fluid grease. In my 2.75 it may leak a drop every so often but not too bad. I use it in preference to the grease as it is easier to top up

graeme

Quote from: Ian on 15 Sep 2006 at 03:22
Colin, Penrite make a semi-fluid grease called just that !! It is labelled as recommended for burman gearboxes but is good for any type of box needing semi-fluid grease. I also used a penrite oil called Transoil 250 - very think but not as much as the semi-fluid grease. In my 2.75 it may leak a drop every so often but not too bad. I use it in preference to the grease as it is easier to top up

This is what we use too Ian. I thought I should add that it doesn't flow! So when filling the box, heat it up first otherwise you will wait some days for it to go through the funnel into the hole!
Chris - perhaps the club might like to order some of this stuff from Penrite?
Cheers, Graeme

clee

Thank's fella's, the Penrite should be easy enough to get( i hope). this is one of the best sites going for finding info.  Thanks again to you all. Regards Col.
colin lee

Ian

Graeme, you are right about that - my wife is always please when I go into the kitchen to borrow a saucepan !! If in no hurry it will eventually go through the funnel. Also another way I do it is with a squeeze sauce bottle with a widened nozzle.