OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Walk Behind Lawn Mower Frames Question On Scott Bonnar Cylinder Mowers New to SB45's

OK found the micrometer.
crank is 0.624 inch (close enough to 5/8) and clutch body is 0.634 inch. Amazing what a hundredth of an inch can do!
So the clutch body is flogged!
Still trying to work out which is the old and which is the new and the differences