anything cheaper will just be ****e and will only fail on you at the most awkward time.be wary of second hand chassis they may well look ok but a lot of the rot takes place inside.
Yeah An Occasional Tap Never Did Anyone Er Thing Any Harm It'll Live Like That For Ages Why Spend Money On Bits When You Can Spend It On Lubrification!!!!!!!!!!!!!!!!!
dont go buying nothing! remove the motor and using jump leads spin the motor you should see the engaging cog spin out i bet its just stuck give it a fettle and try again when you see it work properly refit.
thanks for that landy ads.........i bought the new ones today 3@18p each......but up to now i havent a clue how to fit them..........ive got the box out anyway cos i,m replacing the clutch...do you know how to fit them?