SECTION 10 - ENGINE
10-103
ABNORMAL RUNNING NOISE
POSSIBLE CAUSE CORRECTION
Restrictions in exhaust gas passage, particularly
due to the nozzle ring approaching a clogged
condition
Disassemble and clean
Restrictions in the air outlet side of the blower,
causing the air to surge at the blower wheel when
the engine accelerates
Disassemble and clean
The casing is being rubbed by turbine wheel or
blower wheel
Disassemble and repair or replace damaged parts
Turbocharger Lubrication
The turbocharger used on the Lx665 diesel engine
may not receive adequate lubrication on cool/cold
weather (below 5°C, 40°F) start-up, leading to
turbocharger bearing failure.
The following procedure must be used to ensure
adequate lubrication oil is supplied to the
turbocharger bearings before high-speed engine
operation:
1. Set the engine throttle at 1/3 speed.
2. Turn the ignition switch and allow the automatic
glow plug timer to preheat the engine until the
EIC “beep” is heard.
3. Start the engine, but DO NOT OPERATE
ABOVE 1,500 RPM for three minutes to allow for
adequate oil flow at the turbocharger.
After full load operation, allow the engine to run at low
idle for one minute before engine shutdown.
Op. 10 250 30
TURBOCHARGER REMOVAL
1. To remove the turbocharger, first remove the
muffler from the turbo adapter assembly at 1.
174
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