shim gearbox?

[johan]

Hi
How to think about the shim on 1 gear layshaft /120? ( and gearbox general)
Have looked around , but cant find any info!
Johan

 

[sfcpiet]

The layshaft needs about 0.2-0.3mm axial play in the case.  Also makes sense to check the shifter forks are not loaded when a gear is selected, ie, they are loose enough not to rub in the gear grooves.  Might need to re-shim the individual gears to correct.  Most gearbox shims are available in 0.5 and 1.0mm thickness.  There is often a large diameter shim behind the RH roller bearing outer race limiting axial movement.

Won't find much info on this topic in factory manuals I'm afraid.

piet

 

[johan]

Thank you Piet.
Back to garage.