Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 216Get 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 pin holes to retain spring as shown5Install cross pin opposite to punch driving punch out of clutch as cross pin is installedCross pin should be centered into clutch, as shown
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- Suitable Screwdriver Blade or PunchPunchSpringCross Pin