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M162 ENGINE MECHANICAL 1B1-111 Group Code Letter and Cylinder Bore Size Repair Size 1) The group code letters are carved on the surface of the piston crown and in the mating surface of the crankcase. CYLINDER BORE Group Code Letter of Cylinder A X B X + 5 X + 10 Piston Type to be Used A or X A, X or B X or B X + 5 X + 10 Cylinder Bore Size (mm) φ
89.900 - φ 90.906 φ 89.906 - φ 89.912 φ 89.912 - φ 89.918 φ 89.950 - φ 89.968 φ 90.000 - φ 90.018 Type Standard Size φ 89.9 1st Repair Size (Standard Size + 0.25) 2nd Repair Size (Standard Size + 0.5) Group Code Letter 1) A X B A X B A X B Cylinder Bore Size (mm) φ 89.900 - φ 90.906 φ 89.906 - φ 89.912 φ 89.912 - φ 89.918 φ 90.150 - φ 90.156 φ 89.156 - φ 90.162 φ 90.162 - φ 90.168 φ 90.400 - φ 90.406 φ 90.406 - φ 90.412 φ 90.412 - φ 90.418 |