Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 95Get this manual

Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 95

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3 Remove screws and plate from pump cover to inspect check valvec b

5 Inspect springs, replace if damagedaPump CoverPlateScrews

3 Assemble pump body, diaphragm spring, spring