Mercury 30 Service Manual

3A-0 - FUEL SYSTEM 90-826148R2 MARCH 1997
Table of Contents
Page
Specifications 3A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Pump (Manual) 3A-2. . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Pump (Electric) 3A-4.. . . . . . . . . . . . . . . . . . . . . . . .
Theory of Operation 3A-6. . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 3A-6. .. . . . . . . . . . . . . . . . . . . . . . . . . . .
Testing 3A-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Problem: Air Bubbles in Fuel Line 3A-7.. .. . .
Problem: Lack of Fuel Pump Pressure 3A-7. .
Reassembly 3A-8.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check Valve Assembly 3A-8. . . . . . . . . . . . . . . . . . . .
Fuel Pump Assembly 3A-8. . . . . . . . . . . . . . . . . . . . . .

Mercury 30 Specifications

General

Horsepower	30 HP
Cylinders	3
Displacement	526 cc
Gear Shift	F-N-R
Fuel Induction System	Electronic Fuel Injection (EFI)
Shaft Length	20 in
Steering	Remote / Tiller