Fuel System - MerCruiser 305 CID (5.0L) Service Manual

Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lubricants / Sealants / Adhesives
Identification . . . . . . . . . . . . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . . . . . . . . . . . .
Lighting Options . . . . . . . . . . . . . . . . . .
Gauges . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuits . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil, Fuel and Temperature
Battery Gauge . . . . . . . . . . . . . . . . . . .
Cruiselog Meter . . . . . . . . . . . . . . . . . .
Vacuum Gauge . . . . . . . . . . . . . . . . . . .
Speedometer . . . . . . . . . . . . . . . . . . . .
Tachometer . . . . . . . . . . . . . . . . . . . . . .
Gauge Replacement . . . . . . . . . . . . . . . . .
Starting and Charging Harness
MCM 5.0L Engines
MCM 5.7L Engines
MEFI 1 and MEFI 2 MCM 5.0L EFI,
5.7L EFI and
350 Mag MPI Engines
MEFI 3 MCM 5.0L EFI, 5.7L EFI and
350 Mag MPI Engines
MIE 5.7L Inboard . . . . . . . . . . . . . . . . .
MIE 350 Mag MPI and Black Scorpion
Engines - Starting and Charging System
Harness . . . . . . . . . . . . . . . . . . . . . . . . .
Section 5A - Fuel Delivery System For Carbureted Engines
Identification . . . . . . . . . . . . . . . . . . . . . . . .
Replacement Parts Warning
Specifications . . . . . . . . . . . . . . . . . . . . . . .
Torque Specifications
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lubricants / Sealants / Adhesives
Precautions . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Supply Connections
90-861327--1 OCTOBER 1999
Section 4D - Instrumentation
4D-2
. . . . . 4D-2
4D-2
4D-3
4D-3
4D-4
4D-4
. . . . . . . . . 4D-4
4D-6
4D-7
4D-7
4D-8
4D-8
4D-8
Section 4E - Wiring Diagrams
. . . . . . . 4E-2
. . . . . . . . . . . . . . . 4E-2
. . . . . . . . . . . . . . . 4E-4
. . . . . . . . . . . . 4E-6
. . . . . . . . . . . . 4E-8
4E-10
4E-12

FUEL SYSTEM

5A-2
. . . . . . . . . . 5A-2
5A-3
. . . . . . . . . . . . . . . . 5A-2
5A-3
. . . . . 5A-3
5A-4
. . . . . . . . . . 5A-3
Senders . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pressure . . . . . . . . . . . . . . . . . . . . .
Water Temperature
Switches . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Key Switch
Lanyard Stop Switches
Start/Stop Switch . . . . . . . . . . . . . . . . .
Audio Warning System
Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pressure Switch
Transmission Fluid
Temperature Switch
Sterndrive Gear Lube
Monitor Switch . . . . . . . . . . . . . . . . . . .
Fuel and Ignition System Harness
MEFI 1 MCM 5.0L EFI,
5.7L EFI Alpha Engines
MEFI 3 5.0L EFI and
5.7L EFI Engines
MEFI 1 and MEFI 2 MCM
350 Mag MPI Bravo Engines
MEFI 3 350 Magnum MPI and
All Black Scorpion Engines
Fuel Delivery System
Recommendations
Fuel System Components
Carburetor System
Water Separating Fuel Filter
Replacement . . . . . . . . . . . . . . . . . . . . .
Vent Hose Routing . . . . . . . . . . . . . . . . . .
Carbureted Models
4D-9
4D-9
. . . . . . . . . . . . . . . 4D-10
4D-12
. . . . . . . . . . . . . . . 4D-12
. . . . . . . . . . . . 4D-13
4D-14
. . . . . . . . . . . . . . . 4D-14
4D-14
. . . . . . . . . . . . . . . 4D-15
. . . . . . . . . . . . . . 4D-15
4D-18
. . . . . 4E-14
. . . . . . . . . . . 4E-14
. . . . . . . . . . . . . . . . 4E-15
. . . . . . 4E-16
. . . . . . . . 4E-17
. . . . . . . . . . . . . . . . 5A-4
. . . . . . . . . . . . . . . . 5A-4
. . . . . . . . . . . . 5A-5
. . . . . . . . . . . . . . . . 5A-5
. . . . . . . . . . 5A-5
5A-6
5A-6
. . . . . . . . . . . . . . . 5A-6
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