Inner case specs

[coomo]

Guys.Finally at stage to refit inner case.Despite a lot of research I cant find reliable info as to whether the chainwheel is ready to fit as in picture.Is that it or am i missing any seals or spacers? Thanks.
Secondly the two holes in the crank sprocket.Are these purely for locking engine?

 

[Peavey Jeltz]

Well there is the spacer and location circlip which go on the mainshaft behind the clutch: items 55 and 56 here https://andover-norton.co.uk/en/shop-drawing/237/chaincases-chains-sprockets-clutch-alternator

The two holes in the engine sprocket are for removing said sprocket with a puller like this: http://www.oldbritts.com/19_064297.html

 

[L.A.B.]

Well there is the spacer and location circlip which go on the mainshaft behind the clutch: items 55 and 56

....Also clutch-primary chain alignment shims, 57 and 58. (Or, shim as necessary)

 

[coomo]

Thanks guys.I have some shims.The circlip isnt shown on factory images for my bike .1970 Roadster.Im finding a lot of later "parts" simply werent used on my bike!

 

[L.A.B.]

The circlip isnt shown on factory images for my bike .1970 Roadster.Im finding a lot of later "parts" simply werent used on my bike!

1968-70 parts book illustration 'E' Clutch:

https://andover-norton.co.uk/en/shop-drawing/265/clutch
22 Circlip
23 Spacer (recess fits over the circlip)

 

[coomo]

ok got that thanks.Not sure where circlip locates though.So that chainwheel bolts up to inner case,without a seal behind it.How does the bearing retain grease, or does it rely on splashing oil from case? Just doesnt seem adequate!

 

[L.A.B.]

Not sure where circlip locates though?

In the groove on the mainshaft (as there should only be the one groove?).

It is recommended to tighten the clutch nut to 40-45 lbs.ft with Loctite.

Tightening to 70 lbs.ft as it says in the manual has been known to damage the circlip.

 

[Peavey Jeltz]

About like this. I just happen to have my primary open.
So the locating clip goes in the groove as L.A.B says, all the way back where the splines end. The groove is about 1/8" out from the sleeve gear. The spacer goes "step side" against the locating clip which when properly seated should fit inside the "step" in the spacer.

 

[coomo]

GREAT thanks!!