Clutch Centre Nut Retaining Method

olympus · Oct 28, 2018

On the 72 i have (February Build) the clutch retaining nut is locked by a tab, but according the AN it should be retained using a spring washer??
Both are perfectly fine means of locking the nut ... stick to what is currently there or use the correct device as indicated
Or doesn't it make any difference in the scheme of things??

Thank you

Torontonian · Oct 28, 2018

The tab washer is problematic. The metal is soft. Easily squished and can cause a wee bit of slop between itself and the mainshaft nut. This leads to clutch issues.

SteveA · Oct 28, 2018

Loctite!

L.A.B. · Oct 28, 2018

olympus said:
On the 72 i have (February Build) the clutch retaining nut is locked by a tab, but according the AN it should be retained using a spring washer??

Originally, it would have been a nut and spring washer.
https://andover-norton.co.uk/en/shop-drawing/8/chaincases-chains-sprockets-clutch-alternator

Later it was changed to a nut, a hardened steel washer and tab washer.
https://andover-norton.co.uk/en/shop-drawing/207/chaincases-chains-sprockets-clutch-alternator

Esmerela · Oct 28, 2018

[QUOTE="olympus,
Or doesn't it make any difference in the scheme of things??
Thank you[/QUOTE]

The tab washers aren't the best

, the tip I got from this site works well, belville washer dab of locktite and reduce the torque to 43 ftlbs

gives circlip on the shaft a chance.

Brooking 850 · Oct 29, 2018

Drill the nut and loctite then lockwire through the holes in the clutch centre and the holes drilled in the nut
That way you dont need huge torque on the nut and it makes it easier to remove at a later date if necessary.
Regards Mike

Clutch Centre Nut Retaining Method

olympus

Torontonian

SteveA

L.A.B.

Moderator

Esmerela

Brooking 850

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