Blue Smoke; White Smoke - Mercury MerCruiser D2.8L D-Tronic Service Manual

TROUBLESHOOTING

Blue Smoke

1. Worn piston rings
2. Sticking piston rings
3. Crankcase overfilled - incorrect
4. Leaking head gaskets

White Smoke

1. Injection pump timing incorrect
2. Faulty injector(s)
3. Low compression
4. Plugged fuel suction line or filter
5.
6. Questionable fuel quality
7.
8. Leaking head gaskets
9. Inoperative glow plug system
Page 1C-16
Cause
dipstick reading
Cause
Air leaks, suction side fuel line or water
separating fuel filter
Restricted fuel return/excessive return
line pressure
SERVICE MANUAL NUMBER 22
Special Information
1. Check compression
2. Check compression
Special Information
1. Refer to SECTION 5D
2. Refer to SECTION 5C
6. Low cetane
Refer to SECTION 4C and/or 5E for
9.
EDI diagnosis
90-860074--1 FEBRUARY 2002