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Mercury D4.2L D-Tronic Service Manual

Mercury D4.2L D-Tronic
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4
B
CHARGING SYSTEM
SERVICE MANUAL NUMBER 22
90-860074--1 FEBRUARY 2002 Page 4B-1
Electrical Systems
Section 4B - Charging System
Table of Contents
Identification 4B-3. . . . . . . . . . . . . . . . . . . . . . . .
Replacement Parts Warning 4B-3. . . . . . . . . .
Specifications 4B-4. . . . . . . . . . . . . . . . . . . . . . .
Torque Specifications 4B-4. . . . . . . . . . . . . . . .
Special Tools 4B-5. . . . . . . . . . . . . . . . . . . . . . .
Lubricants/Sealers/Adhesives 4B-5. . . . . . . . .
Wire Color Code Abbreviations 4B-5. . . . . . . .
Precautions 4B-6. . . . . . . . . . . . . . . . . . . . . . . .
General 4B-6. . . . . . . . . . . . . . . . . . . . . . . . .
Electronic Diesel Injection (EDI)
Electrical System Precautions 4B-6. . . . .
Battery Precautions - Multiple EDI
Engines 4B-7. . . . . . . . . . . . . . . . . . . . . . . . .
Charging System Components 4B-8. . . . . . . .
Inspection 4B-9. . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting Tests (Alternator
on Engine) 4B-10. . . . . . . . . . . . . . . . . . . . . . . . .
Circuitry Test 4B-10. . . . . . . . . . . . . . . . . . . . . . .
Output Circuit 4B-11. . . . . . . . . . . . . . . . . . . .
Excitation Circuit 4B-12. . . . . . . . . . . . . . . . .
Sensing Circuit 4B-13. . . . . . . . . . . . . . . . . . .
Current Output Test 4B-14. . . . . . . . . . . . . . .
Exploded View 4B-16. . . . . . . . . . . . . . . . . . .
Removal 4B-17. . . . . . . . . . . . . . . . . . . . . . . . . . .
Alternator 4B-17. . . . . . . . . . . . . . . . . . . . . . . .
Alternator Bracket 4B-17. . . . . . . . . . . . . . . .
Installation 4B-18. . . . . . . . . . . . . . . . . . . . . . . . .
Alternator Bracket 4B-18. . . . . . . . . . . . . . . .
Alternator 4B-18. . . . . . . . . . . . . . . . . . . . . . . .
Battery Isolators 4B-19. . . . . . . . . . . . . . . . . . . . .
Dual Battery Charging Systems 4B-19. . . .
Battery Isolator Diagram 4B-20. . . . . . . . . . .

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Mercury D4.2L D-Tronic Specifications

General IconGeneral
BrandMercury
ModelD4.2L D-Tronic
CategoryEngine
LanguageEnglish

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