Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 263Get this manual

LUBRICATION
Oil Pump Removal
1Refer to section 4A for Cylinder Head Removal2Remove oi pump bolts, separate oil pump from cylinder head
aBolts (4) M6x35

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