Again with the gearchange splines alredy.

[Barney Rubble]

Further to my previous post, regarding worn splines on gear pedal and shaft; noting the replacements that are available, being a short piece of splined shaft to attach to old one when worn bit is cut off. Well, TBH, I do not like the look of the new ones- they are as good as the originals, but there is the rub. I think the splines are too weedy and not of a good depth or profile, and as such, will not stand up to any loosening of the pinch bolt. it does not take much wobbling about on the splines to trash them again. Definitely not good quality, even as newly made.

SO!

I am thinking about getting a shaft from something else that is the same diameter, but with more modern, deeper and more robust splines, with a matching pedal. Probably Jap, maybe Italian, (Fantic moped?), to put onto my old shaft and hopefully stand up better than originals or current replacements. The Fantic Ti had a lovely ally pedal which never came loose. The pic below is an Aprilia Pegaso one.Or maybe get a shaft like I want made, by an engineering outfit, to fit as per above. Food for thought? Anyone know who might make one to drawing, if necessary? Cheers folks.

[AWJDThumper]

I think the problem with the BSA gear change shaft is that they are not made from hardened steel and hence the splines are fairly easily damaged. This is in contrast to my slightly more modern bike's gear change shaft which is almost impossible to damage.

[Barney Rubble]

I think the problem with the BSA gear change shaft is that they are not made from hardened steel and hence the splines are fairly easily damaged. This is in contrast to my slightly more modern bike's gear change shaft which is almost impossible to damage.

Which is what we need for this job, indeed. The repair to the shaft would need doing first, then any heat treatment carried out. In the interim, I may just drill the shaft and put a roll pin thru.The previous owner had partly drilled the shaft any way- only snag is roll pins can be hard to get out again, and that might be a problem that could cause damge to the cases. 

[ducati2242]

Just a thought but if you are having trouble with it can you not alter it so that it is similar to the kick start and fit a small cotter pin through the lever . It will be in a fixed position so it will need to be in the correct place first time .

[Barney Rubble]

That would work, subject to getting a small enough cotter. I am going to roll pin it for now, as I have the pins and a drill correctly sized to hand. It better be right first time, as you say!