1965 G2CSR Clutch play

Information relating to the Matchless G2 or AJS Model 14 250cc Lightweight
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Re: 1965 G2CSR Clutch play

Postby clanger9 » Wed Nov 11, 2020 4:14 pm

Happy to help! Documentation on Lightweights is {ahem} lacking, so hopefully you can get all the info you need here.
If you've got the engine in bits, then the thread on my rebuild might also be handy: viewtopic.php?f=159&t=22646
1989 Moto Morini Dart 350
1993 Ducati 750SS

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Re: 1965 G2CSR Clutch play

Postby ColourNcoat » Wed Nov 11, 2020 5:34 pm

clanger9 wrote:Happy to help! Documentation on Lightweights is {ahem} lacking, so hopefully you can get all the info you need here.
If you've got the engine in bits, then the thread on my rebuild might also be handy: viewtopic.php?f=159&t=22646


Plenty more reading to do then :rofl:
Will look at gearbox in a bit. I just have to clarify things with the clutch so it can be reassembled correctly.
Cheers Clanger I'm sure we will chat soon ;) :beer:

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Re: 1965 G2CSR Clutch play

Postby ColourNcoat » Fri Nov 13, 2020 7:06 am

After ordering more items and more reading I have looked into the clutch plates and their arrangement.
The first innermost plate is worn and according to the pdf file the plate for the 250csr is showing a double friction plate.
Can someone put a picture up of the basket and plates in order just to clarify things, as mine have not been installed correctly. :headbang:
I appreciate all assistance :beer:
Regards Roger

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Re: 1965 G2CSR Clutch play

Postby dave16mct » Fri Nov 13, 2020 9:42 am

Lightweight clutch pictures and info here: http://archives.jampot.dk/book/Workshop ... models.pdf
Dave.

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Re: 1965 G2CSR Clutch play

Postby clanger9 » Fri Nov 13, 2020 12:10 pm

Note that the workshop manual isn't entirely clear (or accurate) on the clutch variations. ;)

According to my research, a late-model CSR clutch should have 3x double-sided friction plates (043192)
http://archives.jampot.dk/technical/Tra ... utches.pdf
Last edited by clanger9 on Sat Nov 14, 2020 11:12 am, edited 1 time in total.
1989 Moto Morini Dart 350
1993 Ducati 750SS

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Re: 1965 G2CSR Clutch play

Postby ColourNcoat » Fri Nov 13, 2020 1:05 pm

[quote="dave16mct"]Lightweight clutch pictures and info here: http://archives.jampot.dk/book/Workshop ... models.pdf
Dave.[/quote
Thank you for that Dave. I have looked at what I could see and saw the diagram with different models but things are getting confusing. My clutch has 2 double plates and 2 singles.
Cheers for input :beer:

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Re: 1965 G2CSR Clutch play

Postby ColourNcoat » Fri Nov 13, 2020 1:10 pm

clanger9 wrote:Note that the workshop manual isn't entirely clear (or accurate) on the clutch variations. ;)

According to my research, a late-model CSR clutch should have 4x double-sided friction plates (043192)
http://archives.jampot.dk/technical/Tra ... utches.pdf

That's the one I've looked at and that's what's throwing me because my basket doesn't look like it should have a friction plate on the inner most surface :headbang:
I hope I haven't got to buy a clutch as Well.
Cheers Clanger.

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Re: 1965 G2CSR Clutch play

Postby clanger9 » Fri Nov 13, 2020 1:26 pm

I wouldn't worry too much about getting the "right" clutch - they all work. The lack of documentation means there are endless random variations.
Mine ran perfectly well with a reversed scrambler clutch pack in a CSR basket, for example...

If yours has a "deep" clutch basket, but is missing the friction surface, then it's probably a 350 clutch.

Here are some useful photos & measurements: viewtopic.php?f=15&t=17589&start=20
1989 Moto Morini Dart 350
1993 Ducati 750SS

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Re: 1965 G2CSR Clutch play

Postby clanger9 » Fri Nov 13, 2020 1:55 pm

... I have dug out my annotated photo, which hopefully identifies the baskets correctly:

IMG_0246.jpg
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1989 Moto Morini Dart 350
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Re: 1965 G2CSR Clutch play

Postby ColourNcoat » Fri Nov 13, 2020 7:13 pm

clanger9 wrote:... I have dug out my annotated photo, which hopefully identifies the baskets correctly:

IMG_0246.jpg


That should give me some answers thank you.
My other concerns there is a single thin friction plate that is badly worn on the back. Like a brake disc where the pads were down to the metal.
There is another single friction plate which is a lot thicker with a beveled edge.
Does this go on the inner surface.
I would like to upload pics but my files are too large to upload.
Thanks again Roger. :beer:

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