Question - replacing front (flywheel side) oil seal on a k301 and according to the manual (if I'm reading it correctly) the seal is to be seated 1/2 inch in the bearing plate. Problem is - after seating it about a 1/4 inch or so I'm bumping up against the main bearing in the plate. Not sure what the deal is? Also, as far as I know the motor is a K301 and not a K301A but frankly I can't recall if the bearing plate came off this particular motor. I'm tempted to just seat it an 1/8th or so but just not sure. Thanks