G
LOUD MOUSE wrote:That's a design I've never seen. ..............lm
G-Man wrote:The bush in my 1961 engine has a much larger, tapered flange in the middle, no oil hole and a straight oil groove. It doesn't seem to have suffered any wear, despite the 350 kit in the engine.
The kickstart gear has a matching large taper which mates up with the bush.
I wonder why they 'improved' the design?
I suppose the straight slot and the taper were extra machining operations and the 'new' style could all be made quickly on a single setting in a lathe........
Looking at the fit of the early bush in the gear it is clear that the adjacent part cannot put any load on that flange because it is below th esurface of the kickstart gear. Interesting. I've not looked at a later gearbox for a while. Must go and look. Perhaps it's possible to come up with a better bush.....
G
rrietman wrote:my thinking is if the radial clearances are tolerable---use it. don't worry about the ridge/flange.
Good luck
Randy