Adjusting the clutch on the D7 17A and, as luck would have it, lost a lock washer, which rolled across the floorboards and fell right into the clutch compartment. It was for a 3/8 bolt. I do not see it in the teeth of any gears, and assume it has made its way to the bottom. The clutch lever feels fine. I assume its no big deal, but...better safe than sorry. Any problem with the lost washer?