10. CRANKCASE/CRANKSHAFT AGILITY CITY 50 2T Dowel Pins CRANKCASE ASSEMBLY Install the dowel pins and a new gasket to the crankcase mating surface. Crankcase Assembly Tool Assemble the crankcase halves. Crankcase Assembly Collar The distance between the right crankcase oil Oil Seal seal and crankcase surface is about 12.50.5 mm. When installing the oil seal, be careful to press it with even force. 10-7