Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 141Get this manual
CYLINDER BLOCK AND CRANKCASE
Crankshaft
REFREF DESCRIPTION NOQTY1 CRANKSHAFT WASHER KEY CONNECTING ROD BOLT PISTON PIN RING PISTON (STANDARD) (45 H.P AR PISTON (.05 MM OS) (45 H.P PISTON (STANDARD) (6 H.P AR PISTON (.05 MM OS) (6 H.P PISTON RING-TOP (STANDARD) AR PISTON RING-TOP (.05 MM OS) PISTON RING-SECOND (STANDARD) 10 AR PISTON RING-SECOND (.05 MM OS) OIL RING (STANDARD) 11 AR OIL RING (.05 MM OS) ARAs Required TORQUE lb-inlb-ft Nm