Lubricating Oil Pressure
Use Pressure Gauge, Part No. 3375275, to measure lu-
bricating oil pressure.
Install the pressure gauge to the main oil rifle and observe
the oil pressure.
Low Idle (minimum allowable) 80 kPa [10 psi]
At 1300 RPM (minimum allowable) 205 kPa [30 psi]
At Advertised RPM 241 to 310 kPa [35 to 45 psi]
NOTE: On STC equipped engines, oil pressure will appear
higher (approximately 620 to 690 kPa [90 to 100 psi]) when
the oil temperature is cold due to the viscosity sensor.
Coolant Pressure
Use coolant pressure/temperature/flow analyzer kit, Part
No. 3822994, to measure engine coolant pressure.
Maximum coolant pressure (pressure cap removed) with
closed thermostat is 317 kPa [46 psi].
Engine Run-In Procedure - Chassis
Dynamometer (8-07)
NOTE: Refer to Chassis Dynamometer Operation, Proce-
dure 8-05, for general operating procedures and safety pre-
cautions.
NOTE: Operate the vehicle in a gear that produces a road
speed of 90 to 100 km/h [55 to 60 mph] at maximum horse-
power RPM.
Engine Testing Engine Run-In Procedure - Chassis Dynamometer (8-07)
N14 Page 8-49
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