2001 Mercury Mariner 50-60HP Factory Service Manual, Page 257Get this manual

CYLINDER BLOCKCRANKCASE
Cylinder Block Disassembly
1Remove the drive gear components

aLoad RingDrive GearWoodruff Key 2Remove exhaust cover and gasket3Remove oil filter

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives