I am currently rebuilding my cota 348 which i purchased as a non runner some time ago.. I need some help with a couple of points... Tightening torques for the barrel stud nuts (3360.161)? On the gear selection side behind the main selector (5166.012) there is a disc (5166.01301) with a tab which engages a stud (0266.108) with a guide spacer (2166.107) - this allows some minor angular movement (+/- 5 degrees) of the disc based on an offset hole drilling in the spacer. My question is: what is t