Oil Pressure - Westerbeke 8.0KW-60Hz Service Manual

ENGINE ADJUSTMENTS
OIL PRESSURE
The engine's oil pressure, during operation, is indicated
by the oil pressure gauge on the instrument panel. During
normal operation, the oil pressure will range between 40 and
60 psi (2.8 and 4.2 kg/cm').
NOTE: A newly started, cold engine can have an oil pressure
reading up to 60 psi (4.2 kg!clrf). A warmed engine can have
an oil pressure reading as low as 35 psi (2.5 kg/cm'). These
readings will vary depending upon the temperature of the
engine and the rpms.
OIL PRESSURE [GENERATOR)
Oil pressure at 1800 (or 1500) rpm should maintain a reading
of 50 psi.
TESTING OIL PRESSURE
To test the oil pressure, remove the oil pressure sender, then
install a mechanical oil pressure gauge in it's place. After
warming up the engine, set the engine speed at 1800 rpm and
read the oil pressure gauge.
OIL PRESSURE 50 psi at 1800 rpm.
SENDER AND SWITCH TORQUE
9 -13 ft-Ib (1.2 -1.8 m - kg).
. OIL
~~~SSUllE,
SENDDR
OIL
~~~SSUIRE----;~§H~"""'""
SWITCH
OIL ."
T·.R~~
OIL
PRESSU!RE-...-->il~~~
VALVE
OIL
OIL FLOW DIAGRAM
OIL DRAIN HOS,E,--'l
LOW OIL PRESSURE
The specified safe minimum oil pressure is 4.3
+
1.4 psi (0.3
+ 0.1 kg/cm'). A gradual loss of oil pressure usually indicates
a worn bearings. For additional information on low oil pres- .
sure readings, see the ENGINE TROUBLESHOOTING chart.
OIL PRESSURE RELIEF VALVE
An oil pressure relief valvejs located on the engine block
just below the injection pump. This valve opens at
appoximately 5'0 psi [343 kpal and maintains that pressure.
Englnl's & Generators
50
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