TURBOCHARGER
6LPA Service Manual
9-21
Turbocharger
12/05
© 2007 Yanmar Marine International
Excessive Engine Oil Consumption
Possible Cause
Corrective Action
1. Abnormal wear or breakage of seal ring by excessive wear of
bearing
Disassemble and repair the turbocharger.
Engine Output Drop
Possible Cause
Corrective Action
1. Exhaust gas leak
Check connections and repair.
2. Air leak from discharge side of compressor
3. Clogged air cleaner element
Wash or replace the element.
4. Dirty or damaged turbocharger
Disassemble and repair or replace the turbocharger.
Poor (slow) Response (starting) of Turbocharger
Possible Cause
Corrective Action
1. Hard carbon deposits on the turbine side (wheel sealing)
preventing smooth turbine shaft rotation
Replace engine oil and wash the turbocharger after
disassembly.
2. Incomplete combustion
Check the engine combustion system and take corrective action
if needed to restore performance.
Abnormal Sound
Possible Cause
Corrective Action
1. Restricted exhaust gas path caused from a clogged nozzle in
turbine housing or reverse flow of blower discharge during
acceleration (generally called surging)
Disassemble and wash the turbocharger.
2. Rotating parts contacting
Disassemble and repair or replace the turbocharger.
Abnormal Vibration
Possible Cause
Corrective Action
1. Loose intake, exhaust or oil pipe connection to the
turbocharger
Check pipe connections of the turbocharger and repair as
needed.
2. Damage on the turbine wheel or compressor impeller caused
by contact between rotating parts and adjacent parts due to
damaged bearings or ingestion of foreign debris
Disassemble and repair or replace the turbocharger. If foreign
debris is present completely remove it.
3. Unbalanced rotating part
Repair or replace the rotating part.
Содержание 6LPA-STP2
Страница 1: ...6LPA series 6LPA Service Manual SERVICE MANUAL 6LPA STP2 6LPA STZP2 P N 0B6LP G00100 MARINE ENGINES ...
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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 ...