Model 14 gearbox

Information relating to the Matchless G2 or AJS Model 14 250cc Lightweight
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Model 14 gearbox

Postby Ernie.p » Sun Mar 07, 2021 2:03 pm

How do you tell which selector is which i.e. layshaft and main shaft?

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Re: Model 14 gearbox

Postby Rob Harknett » Sun Mar 07, 2021 3:31 pm

Light_Weight_gearbox_rebuild.pdf

Someone will come along, till then will this help.
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Re: Model 14 gearbox

Postby Janet » Tue Apr 06, 2021 9:41 pm

If you look in this thread viewtopic.php?f=11&t=27617 you'll find a photo of my gearbox. The selector fork on the left is 041341 for the mainshaft and the one on the right is 041343 for the layshaft. On the latter, the little knobbly bit that fits in the groove on the curved plate thingy is at 180 degrees from the fork prongs. On the former, it is about 90 degrees.

Note: I'd recommend you either ignore anything I say or check with a man before following any technical advice from me. :rofl:
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Re: Model 14 gearbox

Postby clanger9 » Wed Apr 07, 2021 7:21 am

Hi Ernie,

They only fit one way around ;-)

I haven't got a gearbox to hand to check, but I'm fairly certain the "straight" one is for the mainshaft and the one with the peg at 90 degrees is for the layshaft.
Which I think is the opposite of what Janet said, so maybe flip a coin? :rofl:

You might find this repair guide helpful: https://www.ifixit.com/Guide/AJS-Matchl ... haul/91777

Good luck!
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Re: Model 14 gearbox

Postby Janet » Wed Apr 07, 2021 10:10 am

You're a man aren't you? He can check with you now, as I recommended. Eyup lad, I don't even know which is called the lay shaft and which is called the mainshaft.

Some people wonder why I'm not seen around here much anymore.Well, there's only so much self-humiliation I can take. If some kind person reassembling his gearbox would have a good look to see where the two forks fit ( preferably describing which is which eg where the knobs are) and compare them with those on my photo, so I could correct it, I'd be very grateful. I did try to set out all the bits in the right order and facing the proper way but so many look the same to me.
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Re: Model 14 gearbox

Postby clanger9 » Wed Apr 07, 2021 1:09 pm

This is how we all learn Janet! We all need to keep posting - right or wrong :lol:

Hopefully someone with an actual gearbox in actual pieces will be along shortly to set the record straight...
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Re: Model 14 gearbox

Postby Janet » Wed Apr 07, 2021 2:14 pm

I have one in pieces but that doesn't help. I've also got one in fine fettle* but I'm not taking thta apart to have a look.

*Yes, I know it's hard to believe.
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Re: Model 14 gearbox

Postby 56G80S » Wed Apr 07, 2021 6:47 pm

HI Janet

Great to see you posting again.

JohnnyB

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Re: Model 14 gearbox

Postby Janet » Wed Apr 07, 2021 7:30 pm

56G80S wrote:HI Janet

Great to see you posting again.

JohnnyB
Hi John, I'll be in touch in a few days.
That should get the tongues wagging. :lol:
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