Rear hub, speedo drive lock nut 06.0317

olympus · Jul 22, 2019

Guys
Rebuild rear wheel hub assy with all new parts..all going well until I tried to wind in the speedo drive lock nut (yes I know it's L/H).... it will screw in 2/3 threads and then lock up which suggests it's the wrong thread/pitch.
Screwed in the old one ...straight in no problem.Spoke to AN and they swapped it for another nut for the 72 model..... wound it in it's exactly the same
Yes I have thread gauge but I'm away on holiday touring the Lake District so I can't confirm old against new.. has anyone else encountered this issue

Thank you

marinatlas · Jul 22, 2019

Hi, is your hub the cush drive on or the bolted one , just because the PO could had fit an earlier rear wheel/hub to your 72 (cush)........! otherwise , no clue!

Ron L · Jul 22, 2019

marinatlas said:
Hi, is your hub the cush drive on or the bolted one , just because the PO could had fit an earlier rear wheel/hub to your 72 (cush)........! otherwise , no clue!

The speedo drive lock ring is the same part number (06-0317) for both bolt up and cush drive hubs.

olympus · Jul 23, 2019

I'll run my thread gauge and vernier over it when I get home

marinatlas · Jul 23, 2019

Ron L said:
The speedo drive lock ring is the same part number (06-0317) for both bolt up and cush drive hubs.

yes but it "could " be a pre _cdo bolt on hub .......it happens to me !

madass140 · Jul 23, 2019

yes there are 2 different threads , the early bolt up is a fine thread.

L.A.B. · Jul 23, 2019

Is it a bolt-up or cush hub?

Single row bearings were mentioned in a previous post......

https://www.accessnorton.com/NortonCommando/rear-hub-spacer.28140/

.....which suggests it's a cush hub. If 'cush' as would be expected for '72 then the pre-Commando lockring (which I'd guess is 26 tpi) obviously shouldn't fit.

https://andover-norton.co.uk/en/shop-details/15202/speedo-drive-lockring

£20.34 (inc.VAT) for a replacement lockring!!!!

What's wrong with the old one that it can't be re-used?

Time Warp · Jul 23, 2019

You could use the old nut as a thread gauge on the new one.

olympus · Jul 23, 2019

There are a few "dings" in the old one and as it will be exposed as no angle drive is being fitted I would prefer to replace .....if the price was reasonable, this isn't reasonable so the old one will be suitably linished and coated in ACF 50

Rear hub, speedo drive lock nut 06.0317

olympus

marinatlas

Ron L

olympus

marinatlas

madass140

L.A.B.

Moderator

Time Warp

.......back to the 70's.

olympus