Skipping gear?

[Rupe]

I would still check how far the gears engage.

If the answer is 'only just' then the tiny amount of rounding off that may have occurred recently could be enough to cause a problem still. A shim change may sidestep that if tolerances had made it a bit marginal from the factory. ie you bring the gear closer to the other to start with. Have to test all positions but not too hard.

You need to reassemble it in one case & check to see the engagement. It can be hard to do this with one side unsupported though. The best way is with a sacrificial case which is sectioned so you can get into it. This is really a tuner only option if they had a dead spare.

Maybe make a 'sidecover' out of a sheet of ply to hold the other shafts at least the same relative to each other.

Thats good advice mate, I'll do that this week.

Thanks

[Rupe]

here's some pic's which might help. If you notice the dog at the back of the third gear, you can see the difference between the wear (right edge as you look) to the manufactured edge (left and front).

Bearings don't look good either!

And shows the wear on the fork

[cheese]

What are teh parts going to cost you? I'd get another opinion on those gears.

[Rupe]

What are teh parts going to cost you? I'd get another opinion on those gears.

Linton doesn't have gears, but he can get them, but not sure on price.

Or it's US$110 from the states plus shipping per gear.



Why, what do you make from the pics?

[barty5]

Linton doesn't have gears, but he can get them, but not sure on price.

Or it's US$110 from the states plus shipping per gear.



Why, what do you make from the pics?

from memory all the gears had small step cut in to them (the dogs) i didnt think they looked that bad and have seen a lot worse which dtill worked fine i would put the slipping and not engauging gear down to the trashed bearing and bent fork.

[4stroke]

dude the wear on the gear looks minimal, but the bearings and the shift fork id replace, if you cant get a fork i can get one made thro one of my suplyers who make gears and splines n stuff for me, by the look of the bearings if they are all like that, id say that thats mostly the problem but hard to say.
how do the thrust washers look?

[cheese]

Whats a fork going to cost you + the bearings?

[F5 Dave]

Gee I'm having trouble seeing the pictures in any clarity. Phones aren't cameras.

There appears to be a bevel on the RHS of the rear dog. That would be enough to cause issues if the gears aren't meshing enough as they would get spat out as they try to slide in. Further use would make the wear worse quite quickly. Obviously the bearing failure could have had quite an effect on the whole proceedings.

What does the shafts the bearings ran on look like? Chances are they are ok as hardened. The bearings rollers have been skidding so they wear a flat & destruct instantly as can no longer roll. Just wondering if there was a reason why they failed.