Scott, to remove the Allen screw, I have cut an Allen wrench down so it will fit in under the handle. I hate it when I find top handles that have had holes drilled through them to get to the bolt. Usually on Mk-20’s. These are often pretty tight, but at least on green tank motors, they usually are not rusted in place, just tight. Be careful to try to not spin the wrench in the bolt, as then you will have no choice but to drill the sheave bolt head off. As for the anti-rattle springs, these are just wave washers that sit under the pawls. Not critical for the operation of the recoil assembly.

Steve