Mariner Mercury 105/140 JET, Service Manual

Page: 81 / 797

2B-0 - ELECTRICAL 90-824052R3 JUNE 2002
Table of Contents
Page
Specifications 2B-1 . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Tools 2B-1 . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Cable Size 2B-1 . . . . . . . . . . . . . . . . . . . . .
Battery 2B-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Precautions 2B-2 . . . . . . . . . . . . . . . . . . . . . . . . .
Specific Gravity Readings 2B-2 . . . . . . . . . . . . . . .
Specific Gravity Cell Comparison Test 2B-3 . .
Electrolyte Level 2B-3 . . . . . . . . . . . . . . . . . . . . . . .
Charging a Discharged Battery 2B-3 . . . . . . . . . . .
Winter Storage of Batteries 2B-4 . . . . . . . . . . . . . .
Battery Charging System Description 2B-4 . . . . .
Battery Charging System Troubleshooting 2B-5 .
General Troubleshooting 2B-5 . . . . . . . . . . . . .
40 Ampere Alternator System 2B-5 . . . . . . .
40 Amp Stator Test (Alternator
Coils Only)
2B-5 . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 40 Amp Alternator
System
2B-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Determining Cause of Problem 2B-6 . . . . . . . .
Problem: Constant High Output 2B-6 . . . . . . . .
Problem: No Output 2B-6 . . . . . . . . . . . . . . . . . .
Regulation Voltage Check 2B-6 . . . . . . . . . . . .
Voltage Regulator Test 2B-7 . . . . . . . . . . . . . . .
Removal of Voltage Regulators 2B-7 . . . . . . . .
Page
Installation of Voltage Regulator/
Rectifier
2B-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Incorporating a Battery Isolator With
V-6 40 Amp Charging System
2B-9 . . . . . . . . .
System Wired for Split Output 2B-9 . . . . . . . . . . . .
20 Amperes to Auxiliary Battery;
20 Amperes to Cranking battery
2B-9 . . . . . . .
System Wired for 40 Ampere Output
to Isolator 2B-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starter System 2B-11 . . . . . . . . . . . . . . . . . . . . . . . . . .
Starter System Components 2B-11 . . . . . . . . . .
Description 2B-11 . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting the Starter Circuit 2B-11 . . . . .
Starter Circuit Troubleshooting
Flow Chart
2B-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starter Removal and Installation 2B-13 . . . . . . . . .
Removal 2B-13 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 2B-14 . . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembly 2B-14 . . . . . . . . . . . . . . . . . . . . . . . .
Starter Cleaning, Inspection and Testing 2B-15 . .
Cleaning and Inspection 2B-15 . . . . . . . . . . . . . .
Testing 2B-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starter Reassembly 2B-17 . . . . . . . . . . . . . . . . . .
Starter Solenoid Test 2B-19 . . . . . . . . . . . . . . . . .