If you take the coils off the engine cover you have to make sure they don't rub on the rotor when reinstalled.The stator coil is OK usually - it doesn't move around much and there's more clearance. The field coil will usually rub if you just tighten it up and hope for the best; I wrap a turn of masking tape inside the rotor, then install the cover (on the dowels) with the field coil bolts loose and finally tighten the bolts, remove the cover, and take the tape off.
Careful with the wiring, the alternator wires go close to the neutral switch. It's easy to pull the neutral switch wire out of the little spring clip connection - and it can be a bugger to get it back in.
Clean, tighten, and seal (with dielectric grease) the 5 alternator wire bullet connectors. These cause a LOT of charging problems - they are very prone to corrosion because of the engine heat cycling and environment under the cover. If they're really bad (burnt/blackened cover tubes and wiring) then the connectors must be replaced or bypassed with soldered connections. If you solder, protect the joints with shrink wrap sleeve as electrical tape will turn to goo under there.
