Charging System Inoperative; Noisy Alternator - Mercury MerCruiser D2.8L D-Tronic Service Manual

SERVICE MANUAL NUMBER 22

Charging System Inoperative

1. Loose or broken drive belt
2. Engine rpm too low on initial start
3. Loose or corroded electrical
4. Faulty battery gauge
5. Battery will not accept charge
6. Faulty alternator or regulator
7. Refer to Charging System SECTION

Noisy Alternator

1. Loose mounting bolts
2. Drive belt
3. Loose drive pulley
4. Worn or dirty bearings
5. Faulty diode trio or stator
6. Faulty armature
90-860074--1 FEBRUARY 2002
Cause
connections
4B for complete diagnostic procedures
Cause
Special Information
2. Rev engine to 1500 rpm
4. Best way to test is to replace gauge
5. Low electrolyte or failed battery
Special Information
2. Worn, frayed, loose
6. Rubbing, broken wire
TROUBLESHOOTING
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