Gearbox drain plug.. 59 model 31

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Taid
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Gearbox drain plug.. 59 model 31

Post by Taid »

The kickstart is stiff, doesn't self return to the top, so got to investigate .

First, drain gearbox, but there appear to be two fittings underneat, one looks too be too big and meaty for just a drain plug, the other .. I'm not sure, but have read somewhere that one is somekind of locating peg .. (which sounds frightening .. )


Secondly, can I remove the end cover with the footpeg in place, or do I need to remove it first?

Last thought .. is there an :exploded diagram of the box ,. I'd like to see the kickstart arrangement..

Thanks
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Now sold ... 1956 AJS 16MS Bitsa .. HSU 414 .. rebuilt/re-registered 1987
SPRIDDLER
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Re: Gearbox drain plug.. 59 model 31

Post by SPRIDDLER »

As it's a '59 here's the one for the AMC 'box.
Pt. No.040138
Gearbox drain plug AMC.JPG


Full drawings which show the whole box incl k/s arrangement is in the link below to Christians Archive here:

http://archives.jampot.dk/technical/Tra ... rawing.pdf


It would be time well spent if you familiarised yourself with what's in Christians Archive as you'll also find exploded dia's and overhaul instructions for everything about our bikes.
Under 'Technical' in the Archive you'll find articles on pure techy stuff. For the gearbox go to: 'Technical'............'Transmission''......... 'AMC'
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Last edited by SPRIDDLER on Sat Sep 03, 2022 3:36 pm, edited 4 times in total.
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Joker_Bones
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Re: Gearbox drain plug.. 59 model 31

Post by Joker_Bones »

20211025_155535.jpg
The big one houses the indent plunger:

20211025_155535.jpg
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Taid
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Re: Gearbox drain plug.. 59 model 31

Post by Taid »

Thank you, S & JB

Had just about convinced myself it was the big from looking at illustrations of the plug so you postings were very timely ..

I had spend most of the morning looking through and downloading stuff in Christians Archive, but must have been wearing blinkers ..

Thanks again, both ..
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Now sold ... 1956 AJS 16MS Bitsa .. HSU 414 .. rebuilt/re-registered 1987
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Re: Gearbox drain plug.. 59 model 31

Post by SPRIDDLER »

Taid wrote: Sat Sep 03, 2022 3:25 pm I had spend most of the morning looking through and downloading stuff in Christians Archive, but must have been wearing blinkers ..
:thumbup:

Yes, there's so much in the Archive that stuff is easily missed and it does take a while to get to know what's there and where to look for it.
I get the impression that it's a very under-used resource which seems a shame as between the Archive, the Forums and the Technical Articles there's virtually every bit of info one could ever need.
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Re: Gearbox drain plug.. 59 model 31

Post by Joker_Bones »

Doh... I put the same photo up twice, one was supposed to be plunger and housing.
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Taid
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Re: Gearbox drain plug.. 59 model 31

Post by Taid »

As you say, there's so much stuff ..

F Neill's book on the Twins came with the bike, and there is an exploded diagram of the gear box, but though the parts are numbered, there isn't a reference table .. but after today, I have a better idea of what/where the bits are ..
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Now sold ... 1956 AJS 16MS Bitsa .. HSU 414 .. rebuilt/re-registered 1987
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Re: Gearbox drain plug.. 59 model 31

Post by SPRIDDLER »

Taid wrote: Sat Sep 03, 2022 5:10 pm F Neill's book on the Twins came with the bike, and there is an exploded diagram of the gear box, but though the parts are numbered, there isn't a reference table ..
Tip.......

If you put the part number in the club spares search box or look it up in the factory spares list in the Archives it'll give you a description as to what part it is. ;)

E.g. from the club spares website:
Gearbox drain plug AMC a.JPG
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Taid
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Re: Gearbox drain plug.. 59 model 31

Post by Taid »

I must stop trying to take short cuts .. don't pay ...
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Now sold ... 1956 AJS 16MS Bitsa .. HSU 414 .. rebuilt/re-registered 1987
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