michael 1957 g3 oily rag....

Information relating to the Matchless G3 or AJS Model 16 350cc Heavyweight
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Re: michael 1957 g3 oily rag....

Postby Rob Harknett » Wed Oct 31, 2018 10:55 am

vn800b wrote:are they meant to have theses really big brackets inside them?

It looks like someone has customised the guard. Perhaps to fit a non standard part like a DIY top box or DIY pannier frames. Certainly not for professionally made top box and or panniers. As these would be designed to fit on existing fittings,

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Re: michael 1957 g3 oily rag....

Postby vn800b » Wed Oct 31, 2018 7:49 pm

hi rob

thanks for your post and advice, cheers mike

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Re: michael 1957 g3 oily rag....

Postby vn800b » Wed Nov 14, 2018 12:11 am

Hi all

does anybody know the tread inside the 1.1/4" stanchions (1957 forks )as one of the treads is damage and im trying to work out the best way to repair them, (maybe a tap but it would have be a big one,or maybe take to a machine shop?

thanks mike

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Re: michael 1957 g3 oily rag....

Postby Mick D » Wed Nov 14, 2018 7:30 am

Hi

It's a 1" x 20 TPI BSC thread.

https://www.tracytools.com/taps-and-die ... ct_id=1009

Regards Mick

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Re: michael 1957 g3 oily rag....

Postby vn800b » Sat Nov 24, 2018 3:21 pm

thankyou mick for the post, cheers mike

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Re: michael 1957 g3 oily rag....

Postby vn800b » Sun Nov 25, 2018 11:01 am

Hi guys

im just working on the head-stock today,and found something worrying, the head stock bearing race seems to be ,to one side of the head stock, i didn't know if this was anything to be worried about?

thanks mike
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Re: michael 1957 g3 oily rag....

Postby SPRIDDLER » Sun Nov 25, 2018 12:05 pm

Is the r/h side of the headstock casting that surrounds/supports the race really as thin as it looks or is the bearing race overlapping it?
Is the bottom race offset the same?
I poke badgers with spoons.

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Re: michael 1957 g3 oily rag....

Postby Mick D » Sun Nov 25, 2018 3:16 pm

Hi

If these are still the original pattern hemispherical races I wouldn't worry, there's plenty of 'meat' retaining them.

Has the head stock been re-machined? (If you're unsure post a photo of the other side of the race and of the headstock with the race removed).

Regards Mick

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Re: michael 1957 g3 oily rag....

Postby vn800b » Sun Nov 25, 2018 5:42 pm

Hi guys

thanks for the posts, this is just how i got it really , i dont think its been re-machined, but was a little worried when i saw it!! but if you guys thing its ok, im happy with that.
cheers mike
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Re: michael 1957 g3 oily rag....

Postby ajscomboman » Sun Nov 25, 2018 5:53 pm

Seen several frames like it, never has any issues with them. The only times I've had issues is when a bike has been run loose for a long time and the frame cups fretted. The top race was loose in the cup and no matter how I adjusted it the front end always had free play. The fix was to JB weld the cup into the frame and leave it to set overnight with the yolks and bearings dry. Strip it the next day and grease it all up before building the front end. Provided your races are a good fit in the cup I'd not worry.

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