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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
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26 ew mag rebuild

Started by Simon Giles, 12 Apr 2016 at 22:08

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Simon Giles

Hi Team,
I'm getting the magneto rebuild.
How many rollers should the magneto drive bearing have?
Cheers,
Simon

Simon Giles

Hi All,

Further to my question yesterday please see attached photos.

Is this magneto drive as per original design or has it been modified?

Are one or more roller bearings missing?

Thanks for you comments/assistance.

Cheers,

Simon


eddie

Simon,
            I can't comment on whether the bearing has been modified or not, but the normal practice for crowded balls or rollers is to have a 'full house minus one'.

    Regards,
                 Eddie.

Simon Giles

Thanks Eddie,
We are just not sure it we are missing one roller in the crank case somewhere!

Doug

Simon,

There should be a brass cage holding twelve 3/16 x 3/16 rollers. Though I am missing it, the book also mentions a fiber washer used as a face seal. There should be a spring and plunger in the end of the drive dog to keep the fiber washer under light axial pressure. I think I have the cage assembled the wrong way around in the accompanying photo. I doubt they would have the ends of the rollers open to the magneto gear.







-Doug

Simon Giles

That's very helpful Doug-  thanks it gives us something to work from.
Regards,
Simon