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Norton 16H gearbox bushings

Guys,

I am looking for a part number / info where I can get the 2
bushings pressed into the upright gearbox for the 16H.

Cam plate spindle bushing

Cam plate quadrant lever bushing

Cant find this in the parts list or maintenance manual diagram.
Any help would be great.

Reg

Hinrik

email (option): hsteinsson28@hotmail.com

Re: Norton 16H gearbox bushings

The bushes are generally available. I've only asked for them by name though and not number.

Ken McIntosh certainly lists them.

http://www.manxnorton.co.nz/catalogue/catalogue.jsp?m_id=2&c_id=34

Re: Norton 16H gearbox bushings

Won't this info be on the 16h website on the links page?

email (option): davmax@ntlworld.com

Re: Norton 16H gearbox bushings

Hi Hinrik, Russel Motors had all the bushes when I did mine. Also most of the bushes from a Commando gearbox were exactly the same and fitted straight in.

email (option): horror@blueyonder.co.uk

Re: Norton 16H gearbox bushings

Say no more.. ...Ian

email (option): ian@wright52.plus.com

Re: Norton 16H gearbox bushings

Thanks for the replies. I got an email from Ken in NZ, he
says he has a long one I can put in the lathe to trim down
on the outside and that it has standard inside dia. Cant order
this from Russell motors, since no I dont have the partnumber?

BMH in Australia says they can make them for me but are asking
for the sizes. Anyone know? Seams one of the bush has a shoulder
so I cant see how I could use the one long one, unless I am
wrong about the shoulder.

Regards

Hinrik

email (option): hsteinsson28@hotmail.com

Re: Norton 16H gearbox bushings

I didn't have any part numbers when I ordered from Russell's I just told Les what bush I wanted and he sent it. I also had a stock of Commando gearbox bushes which I could try and see they were the same for some of them.

email (option): horror@blueyonder.co.uk

Re: Norton 16H gearbox bushings

The pinion bushes are often interchangeable with later boxes but the bushes for cam plate and quadrant are, as I recall, larger on the doll's head box - I have an idea that they changed from the Laydown box onwards.

The specialists in pre-war Inters must have a source or be able to supply.

Re: Norton 16H gearbox bushings

Stu Roger's 01945 585116 (the Norton International man) could probably help with this. I bought Dollshead gearbox shims and gaskets from him, so he probably does the bushes. He's not cheap though.

email (option): horror@blueyonder.co.uk

Re: Norton 16H gearbox bushings

I got mine from The Matchlessshop in NL, had them made to nice close tolerances, when these bushings are sloppy, the gearbox will leak, and more important, it will jump out of gear!!

They do not seem to have a number??

My 2 cents,

Lex

email (option): welbike@welbike.net

Re: Norton 16H gearbox bushings

I got a NOS quadrant lever from the Norton ownwersclub but
my cam plate spindle is used, so I might have to measure it.

Maybe I could even polish up the bushes and check for tolarances
afterwards.

Thanks for the imputs and happy new "motorcycle" year. Maybe
2013 I can complete my 16H, leaving the G3 and 2 Enfields for
later :)

Cheers

Hinrik

email (option): hsteinsson28@hotmail.com

Re: Norton 16H gearbox bushings

Hello Hinrik,

The part is: Cam Plate or Quadrant Spindle Bush, part number 3951.

Some Commando bushes also fit as mentioned before.
I do not have the dimensions for the bush. Would need to measure one.

Cheers,

Rob

email (option): wd16h@telfort.nl

Re: Norton 16H gearbox bushings

Rob, thanks for sharing the partnumber. Seams to me that one of the bushing has a lip while the other has non. Is it the same partnumer on both locations? See photos. What mounts in that threaded hole?



email (option): hsteinsson28@hotmail.com

Re: Norton 16H gearbox bushings

I don't remember if both bushings are the same, maybe though! A cork washer goes on the lip of the upper one.
The threaded hole is for the stud that holds the selector forks...

email (option): Ferrarakias@hotmail.com

Re: Norton 16H gearbox bushings

Hinrik,

The bushes are identical as shown by the part number.
Outer diameter approx 20,6 mm inner diameter approx 17,36 mm and length approx 22,35 mm.
They are straight without flange and what you see looking like a flange should be a cork washer according to the spare parts list although I have found boxes with a felt washer.
I send you some pictures of a housing in which you can see it properly.

Kostas was correct on use of the threaded hole.

Cheers,

Rob

email (option): wd16h@telfort.nl

Re: Norton 16H gearbox bushings

When I overhaul BSA gearboxes I measure the shaft carefully (after any cleaning up required) and frequently have to make the bushes to achieve the correct tolerances, as the shafts can end up undersize through wear/refinishing...Buying new bushes in this instance (which seem to be pretty expensive) would be pretty much a waste of money if they were still too slack after fitting...something to consider...Ian

email (option): ian@wright52.plus.com

Re: Norton 16H gearbox bushings

Hello Ian,

Good advice that I did not add, but its certainly wise to keep the wear into mind.

I make my own bushes so I would make them to fit the parts I have.


Cheers,

Rob

email (option): wd16h@telfort.nl

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