Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 253Get this manual

Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 253

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CYUNDER BLOCKCRANKCASE

Crankcase and Crankshaft Installation
1 Install crankshaft main bearingsNOTE: Align the projection of the bearings with the notch in the cylinder bodycrankcas