Gearbox Parts

Information relating to the Matchless G2 or AJS Model 14 250cc Lightweight
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Martin.S
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Location: Bristol UK

Gearbox Parts

Post by Martin.S »

I have now two gearboxes - most of the gears are breaking down on the case hardening where the contact points are wearing through but I have two questions for you :-
IMG_20181128_110202.jpg
Is one of these ground spacers the later fitment that fits under the new circlip on the Kick start shaft?

and one of these gear change shafts has no hole for the indicator shaft - what's this off? :-
IMG_20181128_105548.jpg
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clanger9
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Re: Gearbox Parts

Post by clanger9 »

The spacer looks like the machined spacer that sits behind the kickstart pawl (041301). It could possibly be the later modification that sits the other side (no p/n), but both of the ones I have here are dished steel washers, rather than a machined spacer.

I don't know about the “blanked off” gearchange shaft. All AMC Lightweights have a gear indicator. Maybe Norton Lightweight?
1989 Moto Morini Dart 350
1993 Ducati 750SS
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Martin.S
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Location: Bristol UK

Re: Gearbox Parts

Post by Martin.S »

Ah - if these are that spacer then where does that horrible tin washer with the same inner diameter go?
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clanger9
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Re: Gearbox Parts

Post by clanger9 »

I think the horrible tin washer is the “modification”. At least that's how I put my gearbox together....
Thread here: http://www.jampot.com/forum/viewtopic.p ... 30#p176266
1989 Moto Morini Dart 350
1993 Ducati 750SS
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Ozmadman
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Re: Gearbox Parts

Post by Ozmadman »

clanger9 wrote:I think the horrible tin washer is the “modification”. At least that's how I put my gearbox together....
Thread here: http://www.jampot.com/forum/viewtopic.p ... 30#p176266
Agree... tin washer. but one or your pics does show a shim up against the the kickstart gear
Paul
1960 Model 8
1974 Yamaha RD250B US Model 6 speed
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clanger9
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Re: Gearbox Parts

Post by clanger9 »

Yes, that's part number 041301. The horrible tin washer is 042091 (apparently).
1989 Moto Morini Dart 350
1993 Ducati 750SS
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Ozmadman
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Re: Gearbox Parts

Post by Ozmadman »

Martin.S wrote:I have now two gearboxes - most of the gears are breaking down on the case hardening where the contact points are wearing through but I have two questions for you :-
I have three boxes (2 for spares just in case) and none of my gears show any signs of wear?? maybe previous owners failed to keep them full of oil?
Paul
1960 Model 8
1974 Yamaha RD250B US Model 6 speed
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Ozmadman
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Re: Gearbox Parts

Post by Ozmadman »

clanger9 wrote:Yes, that's part number 041301. The horrible tin washer is 042091 (apparently).
Cheers, didn't read the thread fully as now I see you had already mentioned it. Getting a bit rusty as I haven't had to do any work on my bike or a few years now
Paul
1960 Model 8
1974 Yamaha RD250B US Model 6 speed
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Martin.S
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Location: Bristol UK

Re: Gearbox Parts

Post by Martin.S »

Regarding the gearchange shaft, once I removed the araldited in ground round bolt it looked like the other one!
Tuch - some people!
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clanger9
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Re: Gearbox Parts

Post by clanger9 »

Ha! I guess that's one way to cure the oil dribble...
1989 Moto Morini Dart 350
1993 Ducati 750SS
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