... , driving and driven gear, driving and driven sprocket, cam, bearing cap, rocker arm, bushing, thrust plate, valve guide, inlet ... and low speed synchronizer, clutch gear, cam and camshaft (*), sliding block, shift lever, axle sleeve, guide block, synchronous ring ... gear, gear ring, variable gear, pushrod cam, shaft sleeve, sliding bearing, centring sleeve, driven disc, inlet and exhaust valve seat. Oil ...