Mercury Mariner 4 and 5HP 4-Stroke Outboards Service Shop Manual 1999, Page 204Get this manual
GEAR HOUSING
3Mount suitable screwdriver or drift punch in viseTool must 1) fit into end of propeller shaft and 2) compress spring as shown4Compress spring beyond cross pin hole and insert punch thru cross pi holes to retain spring as shown5Install cross pi (d) opposite to punch (b) driving punch out of clutch as cross pin is installedCross pin should be centered into clutchas shown
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