1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 149Get this manual

1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 149

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3 Clean mating surfaces of crankcase cover and intake manifoldInstall new gaskets4 Install intake manifoldreed block assemblies to crankcase coverRefer to PAGE 4A-6 for torque specification and tighte