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

2024-06-11, 20:02:05
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, 18:30:04
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, 02:13:36

Dave

2024-06-03, 08:23:05
For Sale
Duncan has just listed his green and cream 1957 Dragonfly for sale with spares and documents.

Dave

2024-06-02, 08:34:05
Parts avalable
alistair still has parts available - barrels, carburettor, castings - see all listings.


Dave

2024-06-01, 18:33:27

Dave

2024-05-28, 00:09:46
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

Flywheel Extractor for CW, EW and some other models

Started by Chris, 20 Jan 2007 at 10:50

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

Chris

The sketch below is of the extractor I have. I do not know how original it is but it certainly works well. For those interested in making one it clearly does not matter whether the centre bolt is Whitworth, BSF or Metric. The dimension partly missing from the left hand side for the thread diameter is 1.7/16".



Special care needs to be taken removing this design of flywheel and temptation to use methods other than the correct extractor should be resisted. The wall of the flywheel beyond the central hub is not much more than 1/8" thick and the use of a three legged puller on the rim will inevitably distort the whole flywheel and not necessarily symmetrically, leaving it with a severe wobble.

Chris

Jonathan

Thanks Chris.
Made one last week and it works like a charm.
The drawing was all I needed to prompt me along.  Had to teach myself how to do threads, but after seeking some advice it went well.
Again, thanks.
Jonathan (Geelong, Australia)
Jonathan H.

Chris

Hi All
     For those of you without the facilities or skills to make this flywheel extractor, they are now held in LDMCC Prewar Club Spares stocks at a very reasonable price. Available to members only and worth joining the Club if you are not a member for this item only.   Chris.

Mikerobe

Quote from: Chris on 08 Nov 2009 at 07:29
Hi All
     For those of you without the facilities or skills to make this flywheel extractor, they are now held in LDMCC Prewar Club Spares stocks at a very reasonable price. Available to members only and worth joining the Club if you are not a member for this item only.   Chris.

Strange you should mention that Chris but having taken delivery of a box of goodies from LDMCC including said extractor it was put to good use on Saturday. Just like this...






Doug

My what an interesting thrust washer you have there!

-Doug

Mikerobe

Quote from: Doug on 17 Nov 2009 at 00:24
My what an interesting thrust washer you have there!

Yes. I had a feeling that things werent right in that department when we got the flywheel off. I suspect I may find some more items missing when I eventually get in to the flywheel..... like the pressure plate which I think ought to be visible in the first picture above. 4 screws came out easily, the other 4 are not so willing and may well have to be drilled out. Any advice on this most welcome. But perhaps I ought totake this discussion to another thread?

Cheers Mike 8-{>

Chris

Hi Mike
   I presume you are discussing the qty 8 screws securing the back plate to the flywheel body. I have found that the only way of getting these out reliably is to use an impact screwdriver. Give them a good soak in WD40 or similar, ensure the slots are clear and then with the impact driver a good bash with at least a 2lb hammer will usually release them. A recent auto jumble purchase of one of these flywheels was so rusty that I could not even see the screws. Wire brushing, a soak in release oil, use of an old screwdriver as a chisel to clean out the residual screw slots and then a good bashing session and I removed all 8. Chris.

Mikerobe

Rather than drift a bit away from the topic of this technical article I have moved my comments to a new thread in general discussion here https://www.douglasmotorcycles.net/index.php?topic=3360.0

Cheers Mike 8-{>