TROUBLESHOOTING
6LPA Service Manual
12-9
Troubleshooting Chart
12/05
© 2007 Yanmar Marine International
Excessive quantity of fuel is
injected
Excessive delivery from fuel injection pump
Re-adjust fuel injection pump
Other
Insufficient seawater
Replace seawater pump
impeller
Piston clearance excessive
Replace
Bearing clearance excessive
Replace
Improper fuel
Replace with correct fuel
Water trapped in fuel
Replace fuel
Poor compression
Inspect and service
Breakdown of turbocharger:
Drop in intake pressure
Dirty air filter
Clean
Dirty guide vane at outlet of compressor
Clean
Leak from intake piping
Repair
Leak of exhaust gas
Repair
High intake air temperature
Complete thermal insulation
of exhaust pipe
Ensure intake air path is
unrestricted from outside air.
Clean air cleaner
Drop in air pressure in engine room
Ensure intake air path is
unrestricted from outside air.
Broken seal ring
Replace
Broken turbine impeller
Replace
Broken nozzle ring
Replace
Dirty turbine impeller
Clean
Clogged nozzle
Clean
Clogged exhaust pipe
Clean
Incorrect reading of pressure gage
Replace
Increased intake pressure
Exhaust gas leak
Re-mount of turbocharger
Failure in fuel injection system
Inspect and adjust the
injection timing
Overhaul injection pump,
repair or replace any
defective parts
Disassemble and inspect
injection valve, repair or
replace any defective parts
Deformed turbine nozzle
Replace
Dirty turbine side
Clean
Increase in load (overloading)
Reduce load
Incorrect reading of pressure gage
Replace
Symptom
Probable Cause
Measure
Содержание 6LPA-STP2
Страница 1: ...6LPA series 6LPA Service Manual SERVICE MANUAL 6LPA STP2 6LPA STZP2 P N 0B6LP G00100 MARINE ENGINES ...
Страница 157: ...ENGINE 6LPA Service Manual 5 77 Timing Belt 12 05 2007 Yanmar Marine International This Page Intentionally Left Blank ...
Страница 178: ...FUEL SYSTEM 6 2 6LPA Service Manual 2007 Yanmar Marine International This Page Intentionally Left Blank ...
Страница 214: ...COOLING SYSTEM 7 2 6LPA Service Manual 2007 Yanmar Marine International This Page Intentionally Left Blank ...
Страница 230: ...LUBRICATION 8 2 6LPA Service Manual 2007 Yanmar Marine International This Page Intentionally Left Blank ...
Страница 248: ...TURBOCHARGER 9 2 6LPA Service Manual 2007 Yanmar Marine International This Page Intentionally Left Blank ...
Страница 268: ...TURBOCHARGER 9 22 6LPA Service Manual Turbocharger 2007 Yanmar Marine International This Page Intentionally Left Blank ...
Страница 270: ...STARTER MOTOR 10 2 6LPA Service Manual 2007 Yanmar Marine International This Page Intentionally Left Blank ...
Страница 288: ...ALTERNATOR 11 2 6LPA Service Manual 2007 Yanmar Marine International This Page Intentionally Left Blank ...
Страница 308: ...TROUBLESHOOTING 12 2 6LPA Service Manual 2007 Yanmar Marine International This Page Intentionally Left Blank ...