C15 Gearbox Selectors

[craig10]

Hi all, my mate has pulled his c15's gearbox out of the centre casing without removing the clutch so all the bits kind of fell out.

The camplate has been inverted to give an other-way-round gearchange. He's stripping the clutch off the shaft to reassemble it but was wondering if the selector forks still go back in the normal way that they would with the camplate the right way up.

The reason he's opened it up is that it's jumping out of first gear, any ideas??

Thanks for any help / info,

Craig

[pierre66]

Hi, as far as i know the selector forks go back the same way. to give it a one up/three down pattern you would have to cut the spacer off the camplate and weld it back on the other side but the selector forks would still sit in the two tracks.

heres a pic. of how it should look with a standard gear pattern, i think its in neutral or there abouts.

as for the jumping out of gear, if its been ok before then i don`t think its a shimming issue although if everything "kind of fell out" you may have that problem now.

mine was jumping out of second gear and it was a combination of worn second gear dogs and worn camplate tracks.

i have found a book called Rupert Ratio to be a great help with these bikes.

hope you get it sorted.

[b40rt]

Quadrant can go in either way to give 1 up, or 1 down.

The plungers may need adjusting to help cure jumping out of gear, I set mine up out of the bike.

Rupert Ratio ISBN 0-9535098-1-8

[craig10]

Thanks chaps, he's already got RR's book, a real mine of info.

B40, I believe you've met my mate with the c15 at the quarry.

[b40rt]

Thanks chaps, he's already got RR's book, a real mine of info.

B40, I believe you've met my mate with the c15 at the quarry.

Hi craig10, he lives out Currie / Balerno way ?

There are posts re pattern replacement quadrants, some aren't accurate and can also cause selection problems.

Ross