07-08-2021, 11:28 AM
When a crank breaks it appears to be the luck of the Devil what happens. When I broke one at maximum rpm, the damage was limited to a crack in the crankcase wall. Decades ago, a friend's Nippy - with an original engine in apparently good order - let go at a modest speed and smashed everything to bits - only the peripheral parts, the cylinder head and a few fittings were salvageable.