TURBOCHARGER
Turbocharger Periodic Inspections
12/05
6LY3 Service Manual
9-9
© 2007 Yanmar Marine International
TURBOCHARGER PERIODIC INSPECTIONS
Inspection Intervals
Periodically check the turbocharger for damage and overall condition. The inspection interval may vary due
to operating conditions. Refer to the table below for a guideline of when to inspect items under normal
conditions.
Checking the Rotor Rotation
Inspect the turbine rotor shaft by listening for any
abnormal sounds during operation. Use a listening
rod to help diagnose any potential problems.
Position the tip of the bar firmly on the turbocharger
case and gradually increase engine rpm. If
high-pitched sounds are generated at intervals of
2 to 3 seconds, some type of abnormal operation is
present. Any such indication is cause for
turbocharger inspection, overhaul or replacement.
Purpose of Use
Checking Intervals
For Marine Use
Check Item
Every 6 months or
1500 operating hours
Every 12 months or
3000 operating hours
Every 24 months or
6000 operating hours
Rotation of Rotor
O
—
—
Rotor Play
—
O
—
Disassembly, Cleaning and Checking
of Entire Turbocharger
—
—
O