1997+ Mercury 35/40HP 2 Cylinder Outboards Service Manual PN 90-826148R2, Page 187Get this manual
7Uneven Wear: Uneven we ar could be caused by bent connecting rod Cleaning and Inspection
Cylinder Block and Crankcase Cover
IMPORTANT: Crankcase cover and cylinder block are matched, line-bored assembly should not be mismatched by using different crankcase cover or cylinder block51853Uneven ar etwe en Arrows
CAUTION
Crocus cloth MUST BE USED to clean bearing surface at CRANKSHAFT END OF CONNECTING ROD320 grit Carborundum cloth MUST BE USED to clean bearing surface at PISTON PIN END OF CONNECTING RODVERIFY CAP TO ROD ALIGNMENT BEFORE TORQUING ROD BOLTSDO NOT continue to clean connecting rod bearing surfaces after marks have been removed52651
Inspect cylinder block and crankcase cover for cracks or fractures