[Clive Loynes]

Originally Posted by big red bus

Thanks for all replys. Yes itd the top gear that has stripped on both occasions. I have replace gear now with white coloured gear from some spares i had lying round. Have just happily used it for a few good runs. Doing at least 30 laps in total with no issues.

The creamy white gears are the POM gears that people refer to. They are made from Polyoxymethylene (POM), also known as acetal. It is an engineering thermoplastic, used in precision parts requiring high stiffness, low friction and excellent dimensional stability. Used a lot for plastic gears.

Did you notice if the layshaft bearing was flush with the inside of the casing or standing proud? If the gearbox feels free then I guess it is ok.