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LP Engine G430 (3.0L)
Lubrication System
Testing & Adjusting
Adhere to the following warnings when performing any
tests or adjustments while the engine is running.
Work carefully around an engine that is running.
Engine parts that are hot, or parts that are moving,
can cause personal injury.
Exhaust fumes contain carbon monoxide (CO) which
can cause personal injury or death. Start and operate
the engine in a well ventilated area only. In an
enclosed area, vent the exhaust to the outside.
Lubrication System Problems
One of the problems in the list that follows will
generally be an indication of a problem in the
lubrication system for the engine.
I
Too much oil consumption.
I
Low oil pressure.
I
High oil pressure.
I
Too much component wear.
Too Much Oil Consumption
I
Engine outside oil leakage
Check for leakage at the seals at each end of the
crankshaft. Look for leakage at the oil pan gasket and
all lubrication system connections. Check to see if oil
comes out of the crankcase breather. This can be
caused by combustion gas leakage around the
pistons. A dirty crankcase breather will cause high
pressure in the crankcase, and this will cause gasket
and seal leakage.
I
Combustion area oil leakage
Oil leakage into the combustion area of the cylinders
can be the cause of blue smoke. There are three
possible ways for oil leakage into the combustion area
of the stems.
1. Oil leakage between worn valve guides and valve
stems.
2. Worn or damaged piston rings, or dirty oil return
holes.
3. Compression ring and/or intermediate ring not
installed correctly.
NOTE: Too much oil consumption can also be the
result if oil with the wrong viscosity is used. Oil with a
thin viscosity can be caused by fuel leakage into the
crankcase, or by increased engine temperature.
Low Oil Pressure
Instrument Panel
Before starting the engine, the engine oil light(1) on
the instrument panel will turn on when the key switch
is turned to the ON position. The light will turn off after
the engine is started and while the engine is running,
lidicating normal oil pressure. The light will turn on
during operation only when there is insufficient engine
oil pressure to properly lubricate the engine’s internal
paarts.
If the oil light comes on, indicating the pressure is low,
check for the causes that follow:
1. Low oil level in the crankcase.
2. Defect in the oil pressure indicator light or oil
pressure sensor unit.
3. Restriction to oil pump screen.
4. Leakage at the oil line connections.
5. Worn connecting rod or main bearings. Worn gears
in the oil pump.
WARNING
WARNING
ILOO001P
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