I have a 1950 C11, and was inspecting the primary chaincase, and found the nut holding the cush drive was a bit loose. I tightened it up by punching on the castlations, but could not find any way of locking that nut in position.
Short of putting a blob of weld on it, is there a better way of securing it..?
After looking at the Cush-drive, I realise that it is not adjustable, So just tighten the nut up sufficiently, and it should not loosen. There is no provision for a lock washer, or locking pin or wire, it just relies upon being torqued up enough.
Use loctite or other thread locker.
Yea, I tried some of Halfords best blue thread locker, and thumped the nut up real tight. Then adjusted the clutch springs to lift off symetrically. A short test ride later, and all seems good to go for our next VMCC ride-out to Bala in Mid Wales.
Hi,
Is the thread the same size as A10? SRM do a cush drive nut with a hex for using a socket.
Dave.
Quote from: DAVE BRADY on 11 Apr, 2025, 11:08 Hi,
Is the thread the same size as A10? SRM do a cush drive nut with a hex for using a socket.
Dave.
You would need to check how much clearance you have between nut and chaincase.
I fitted one of those on a DBD and for some reason the nut 'just' caught on the ally case scoring a groove in the case. Is the C10 a tin case?
The C11 s a tinplate case, with about 20 small bolts holding it on.