Marinediesel 5L V8, Руководство пользователя, Страница: 162 / 248

160
BLACK SMOKE AT IDLE (Continued)
PROBLEM CORRECTION/FURTHER DIAGNOSIS
ƒ
Worn or damaged supercharger
ƒ
Air leakage or restriction in air inlet duct or
intake manifold
ƒ
Incorrect injection pump static timing
ƒ
Incorrect fuel supply to injection pump
ƒ
Incorrect fuel return from injection pump
ƒ
Incorrect HPCA solenoid operation
ƒ
Incorrect automatic advance mechanism
operation
ƒ
Leaking fuel injection lines
ƒ
Faulty fuel injection nozzles
ƒ
Consult your dealer service manager.
ƒ
Check air inlet duct bolt and clamp
tightness; check intake manifold bolt/stud
tightness; disassemble and inspect air inlet
duct; with air inlet duct removed, check
intake manifold runners.
ƒ
Consult your dealer service manager.
ƒ
Consult your dealer service manager.
ƒ
Consult your dealer service manager.
ƒ
Consult your dealer service manager.
ƒ
Consult your dealer service manager.
ƒ
Tighten, repair or replace leaking lines.
ƒ
Consult your dealer service manager.
EXCESSIVE SMOKE DURING ACCELERATION
PROBLEM CORRECTION/FURTHER DIAGNOSIS
ƒ
Operation with long periods of engine
idling
ƒ
Operation while overloaded or at excessive
rpm
ƒ
Operation during extreme ambient
temperature (hot/cold)
ƒ
Outside air intake or air filter restricted
ƒ
Water vapor in exhaust (soft white smoke)
ƒ
Review normal operating procedures
ƒ
Review normal operating procedures
ƒ
Review normal operating procedures
ƒ
Disassemble air filter to inspect element;
with air filter disassembled check outside
air intake.
ƒ
Normal with some application depending
on the routing of exhaust system.
NOTE: Items underlined are the most likely cause of the condition.