Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 142Get this manual
Specifications CYLINDER BLOCK CYLINDER BORE Type Displacement Number of Cylinders Diameter (Std) TaperOut of Round Maximum Bore Type Bore Wear Limit Piston Type O.Dat Skirt (Standard) (Oversize) 0.010 (0.254mm) (Oversize) 0.020 (0.508mm) Compression Ratio Cylinder Compression (cold engine) Top Main Bearing Journal Bottom Main Bearing Journal Connecting Rod Journal Stoke Cycle Over Head Camshaft 14.16 cuin(232cc) 2.323 in(59.0mm) 0.003 in(0.076mm) Steel 2.326 in(59.1mm) Aluminum 2.32092.3216 in(58.95058.965 mm) 2.333 in(59.25 mm) 2.343 in(59.50 mm)
COMPRESSION RATIO CRANKSHAFT
9.3:1 170 -190 lbsin2 (Peak) 1.181 in 0.0001 in(30.0 mm 0.003 mm) 1.181 in 0.0001 in(30.0 mm 0.003 mm) 1.102 in 0.0001 in(28.0 mm 0.003 mm) 4.874.88 in(123.7123.9 mm)