Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 159Get this manual

Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 159

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CYLINDER BLOCK AND CRANKCASE
1 Inspect push rod for straightness, replace if bent2 Replace push rod if corroded or if tips of rod are worn
Inspecting Valve Lifter
1 Replace valve lif