1955 G9 recommission

Information relating to the Matchless G9 or AJS Model 20 500cc twin
AFSMatchie61
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1955 G9 recommission

Post by AFSMatchie61 »

Afternoon All,
I recently bought a G9 on Ebay to add to my 61 G3 AFS. The G9 is an ‘entry level’ machine, having been in storage since 1982 until last year when the PO bought it and put it on the road but found it heavy and sold it to me. It’s pretty crusty and has a later alloy chaincase grafted on. Anyway thought I’d start a thread because I’d like to share the pain 😂
Up on the ramps today because the back wheel was at an odd angle, turns out it has a bent swinging arm so that’s been my job today, removing the old and cleaning the crud of ages off with a toothbrush.
Will post a photo or two once I can
All the best
D
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griffin
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Re: 1955 G9 recommission

Post by griffin »

Always interesting watching people doing all the hard work, looking forward to seeing the pictures.
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Duncan
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Re: 1955 G9 recommission

Post by Duncan »

Looking forward to sharing your misery, everyone likes to see pictures too.
AFSMatchie61
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Re: 1955 G9 recommission

Post by AFSMatchie61 »

Thanks Gents, I honestly can’t see how to add photos but will get there eventually! 😂
SPRIDDLER
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Re: 1955 G9 recommission

Post by SPRIDDLER »

AFSMatchie61 wrote: Fri May 26, 2023 6:14 am Thanks Gents, I honestly can’t see how to add photos but will get there eventually! 😂
Open this link which should help...........

viewtopic.php?f=19&t=27956&p=237049#p237049
'There is a tide in the affairs of men
Which taken at the flood............'
AFSMatchie61
Posts: 60
Joined: Sat Oct 01, 2016 7:34 am
Location: Scotland

Re: 1955 G9 recommission

Post by AFSMatchie61 »

Thanks Spriddler, here’s a photo of the bike when it arrived
IMG_8367.jpeg
A clue not all was well with the swinging arm
IMG_8370.jpeg
And another
IMG_8419.jpeg
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Last edited by AFSMatchie61 on Sat May 27, 2023 6:30 am, edited 2 times in total.
AFSMatchie61
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Joined: Sat Oct 01, 2016 7:34 am
Location: Scotland

Re: 1955 G9 recommission

Post by AFSMatchie61 »

Hmm not sure why there’s a photo of the gearbox but never mind 😂

Currently waiting for a swinging arm to arrive but not really shed weather, the G3 has new rings and is a joy to ride just now
IMG_8477.jpeg
IMG_8480.jpeg
IMG_8479.jpeg
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AFSMatchie61
Posts: 60
Joined: Sat Oct 01, 2016 7:34 am
Location: Scotland

Re: 1955 G9 recommission

Post by AFSMatchie61 »

Perhaps of interest, the later alloy primary that was added many years ago and a bit of cleaning just so I can see what’s what.

I don’t see how it can seal at the box end with a floating disc and no felt pads so am going to try the club kit that has discs, felt and is pop riveted in place.
IMG_8468.jpeg
b8c3fcea-bb60-4321-a52d-80a284d84a54.jpeg
IMG_8401.jpeg
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SPRIDDLER
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Re: 1955 G9 recommission

Post by SPRIDDLER »

AFSMatchie61 wrote: Sat May 27, 2023 6:28 am Hmm not sure why there’s a photo of the gearbox but never mind 😂
Never mind indeed. There can never be too many photos of bikes, bike parts or ride-outs to add interest to Forum posts.

(Can't help with the Twin seal issue as the only twin I've ever had was an Excelsior Talisman Twin 2-smoke back in the 60's).
'There is a tide in the affairs of men
Which taken at the flood............'
g80csp11
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Re: 1955 G9 recommission

Post by g80csp11 »

double check the breather in the end of the crank , it should only let air flow one way
if it shuck open , or broken then you will get lots of oil / breather into the primary chaincase
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