Mercury 40 FourStroke - Page 173

FUEL PUMP
90-857046R1 NOVEMBER 2001 Page 3A-11
Cleaning/Inspection/Repair (All Serial Numbers)
1. Inspect fuel filter for cracks/clogs, replace if necessary.
2. Inspect springs for damage, replace if necessary.
3. Inspect cover seal and diaphragm, replace if damaged.
a
b
a-Cover Seal
b-Diaphragm
Check Valve Inspection/Replacement (S/N OG960499 and Below)
1. Inspect the check valves for damage, replace if necessary.
a
a-Check Valve