11. CRANKCASE/CRANKSHAFT People GT 125i Oil Seal Remove the oil seal from the left crankcase. Left Crankcase CRANKSHAFT INSPECTION Measure the connecting rod big end side clearance. Service Limit: 0.6 mm (0.024 in) Measure the connecting rod small end I.D. Service Limit: 15.06 mm (0.6024 in) 11-4