Marinediesel 5L V8, Руководство пользователя, Страница: 153 / 248

151
NOTE: Items underlined are the most likely cause of the condition.
LOW POWER or LOSS OF POWER
PROBLEM CORRECTION/FURTHER DIAGNOSIS
ƒ
Incorrect fuel quality (heating
energy/purity)
ƒ
Incorrect oil level (high/low) and quality
(grade/viscosity/purity)
ƒ
Operation while overloaded or at
excessive rpm
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Operation during extreme ambient
temperature (hot/cold)
ƒ
Outside air intake or air filter restricted
ƒ
Air leakage or restriction in air inlet duct,
intake manifold or intercooler housing (if
equipped)
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Restricted exhaust system
ƒ
Dirty water separator
ƒ
Binding injection pump throttle cable
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Incorrect fuel supply to injection pump
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Incorrect fuel return from injection pump
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Throttle not opening all the way
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Leaking fuel injection lines
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Check specific gravity of fuel (Use fuel
quality hydrometer); Inspect and clean
fuel tank if needed
ƒ
Remove or add oil to correct level; drain
and refill crankcase, if needed.
ƒ
Insure boat is properly loaded and
operated within RPM limits.
ƒ
Review normal operating procedures.
ƒ
Disassemble air filter to inspect element;
with air filter disassembled, check
outside air intake.
ƒ
Check intercooler bolts for tightness;
check intake manifold bolt/stud tightness;
check hose from turbo to inter cooler
clamps for tightness.
ƒ
Inspect exhaust system for collapsed
pipes or restricted muffler system.
ƒ
Change separator.
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Check throttle controls.
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Tighten fuel lines at fuel water separator
and fuel pump, if necessary.
ƒ
Check fuel return line on top of injector
pump for restrictions or debris.
ƒ
Open throttle, then check engine.
ƒ
Tighten, repair or replace leaking lines.