2001 Mercury Mariner 50-60HP Factory Service Manual, Page 245Get this manual
CYLINDER BLOCKCRANKCASE
COMPRESSION RATIO PISTON PIN CONNECTING ROD CRANKSHAFT
Compression Ratio Cylinder Compression (Electric Models Only, Cold Engine W.O.T Piston Pin Diameter Oil Clearance (Big End) Small End Inside Diameter Main Bearing Clearance Crankshaft Run-out
9.7:1 180 -210 psi (Peak)
0.62850.6287 in(15.96515.970 mm) 0.00080.0020 in(0.0200.052 mm) 0.62930.6298 in(15.98515.998 mm) 0.00050.0017 in(0.0120.044 mm) 0.0018 in(0.046 mm)