1998 Mercury 9.9/15HP 4-stroke outboards factory service manual, Page 163Get this manual

CYLINDER HEAD
Oil Pump Removal
1Remove oil pump
NOTE: O-ring is not reusable
a-Bolt-Oil Pump b-Oil Pump Assembly c-O-Ring (Discard) d-Gasket

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