ifrratedpilot, i polished the core with the Dremal made sure there was no burr's, also it did not show any magnetism to metal(even smacked it on the ground a couple of times).
Also do any of you know if they make a Sequences of Operation for the 6850 selector? i have maintance t.i.p.s and parts leaflets form the shop but the supv. is having problems finding a Sequences of Operation not sure if they even make one?