Thanks Tim - no rush for a reply to this one...
Hi Tim, thanks for that. I guess that as the bright spot on the pushrod is fairly central that would suggest that I don't have a potential problem with the central adjuster nut assembly as described in the V3 posting page 4 - it was this description of the adjuster nut being 4mm off square that I was wondering how to check without the means of mounting in a lathe. What I didn't think through properly was that the piece that worked against it, the pushrod, would show up any off square operation, with either a bright spot off centre or more than likely an over diameter bright spot given the rotation of the adjuster nut (on its clutch plate) and the pushrod relative to each other - each operation of the clutch would then force the pushrod onto a fresh section of its head to the ball bearing and hence a larger bright spot.
Is my logic right?
Cheers
Stuart
A hasty response 'cos it's section night tonight.
I may have caused some confusion because there are two types of adjustor fitted in the outer primary plate. Some (I believe earlier type) are ball ended and some (I think later type) have a flat end like the push rod. Mine is flat ended and it sounds like yours is ball ended. I think the idea was that the flat end would tend to lift squarer, even if the pushrod was not dead central to the adjuster. (Looking at your photo, it looks as though the contact point may be slightly off centre on the pushrod.) Another advantage of the flat end is that the load is spread and the tendency for the ball to bore a hole in the pushrod end is removed. In either case it's important the pushrod end is square. A fairly simple test would be to remove the pushrod and see if you can easily stand it on its end, on a flat surface. It won't need to be far off square before it won't stand up. Or, put it in a drill and rotate slowly - can you see the end "wobbling"?
Hi Tim, thanks for that. I guess that as the bright spot on the pushrod is fairly central that would suggest that I don't have a potential problem with the central adjuster nut assembly as described in the V3 posting page 4 - it was this description of the adjuster nut being 4mm off square that I was wondering how to check without the means of mounting in a lathe. What I didn't think through properly was that the piece that worked against it, the pushrod, would show up any off square operation, with either a bright spot off centre or more than likely an over diameter bright spot given the rotation of the adjuster nut (on its clutch plate) and the pushrod relative to each other - each operation of the clutch would then force the pushrod onto a fresh section of its head to the ball bearing and hence a larger bright spot.
Is my logic right?
Cheers