Scooterotica

I've been running my new build TS1 in over the past month or so, noticed the other day that there was a tiny bit of play in the back wheel that wasn't there before and I could hear a bit of knocking. Due to the noise and the movement I decided to open her up and have a look before any real damage is done.

Took side off and clutch out and there was a bit of movement on the first gear, last time there was any play on the first gear it turned out to be a worn layshaft roller bearing, replaced that and it cured the bit of play. I then took off the endplate and was able to inspect the shim and gears. The gearbox shim has a nice gouge all around it (will get a photo in a bit) and it looks like there is a similar wear/gouging on the underside of the end plate where it meets the big shim.

My question is, would a worn layshaft roller bearing result in the wear/damage done to the shim? Or should I be looking for another cause? I am 100% sure that it was all shimmed up and measured properly when it was put together.

Any thoughts, as always appreciated

have you checked youre rear nut is tight as the layshaft could have moved

garry inglis wrote:have you checked youre rear nut is tight as the layshaft could have moved

The rear nut has a locking plate around it with the screw loctighted in place so it wouldn't come loose....or would/could it?

well if it had the proper gap at setup something has moved up putting pressure on the top spacer and making the gouge as the enplate is in a fixed position it can not move down for the lip its fixed too

garry inglis wrote:well if it had the proper gap at setup something has moved up putting pressure on the top spacer and making the gouge as the enplate is in a fixed position it can not move down for the lip its fixed too

Yeah something has moved. Here's some photos :



And the other side:



And the endplate:

that looks bad alan I think full strip down and reset everything that endplates had it

not sure if it has an effect but was the other small shim between layshaft and the end bearing there?

fit a new bearing track in end plate new needle roller and shim

a.lo.v2 wrote:not sure if it has an effect but was the other small shim between layshaft and the end bearing there?

It was bud

Muppet wrote:fit a new bearing track in end plate new needle roller and shim

It'll need a rather thick shim eh?