Make sure the air compressor will be unloaded during the performance check.
Apply regulated air pressure of 655 kPa [95 psi] to the air compressor unloader (1).
NOTE: The compressed air load in the accompanying illustration must be attached to the air compressor outlet (2).
Caution: Do not crank the engine for more than 30 seconds. Excessive heat will damage the starting motor.
Crank the engine and observe the oil pressure when the engine starts. If the engine fails to start within 30 seconds,
allow the starting motor to cool for 2 minutes before cranking the engine again.
Caution: Ifth e lubricating oil pressure is not within specifications, shut off the engine immediately. Low lubricating oil pressure will cause engine damage. Correct the problem if lubricating oil pressure is not within specifications.
Engine lubricating o il pressure must be at least 69 kPa [10 psi] at approximately 700 RPM.
Make sure the engine is at operating temperature.
Move the throttle lever to the “ FULL O PEN” position.
Adjust the dynamometer load until the engine maintains the rated RPM.
Allow the readings to stabilize. Read the horsepower.
Check all the gauges, and record the readings.
NOTE: The horsepower reading will not be accurate if the lubricating oil temperature and fuel temperature are not
within specifications.
Lubricating Oil Temperature: MIN 90° C [190° F]
Fuel Temperature: MAX 32° C [90° F]
Check all gauges and record the data.
Caution: Do not shut off the engine immediately after it has been loaded. It must be allowed to sufficiently cool.
Remove the dynamometer load completely, and operate the engine at idle speed for 3 to 5 minutes. This will allow
the turbocharger and other components to cool.
NOTE: Idle periods longer than 5 minutes are to be avoided.
Shut off the engine after the cool-down period.
Remove all test instrumentation. Remove the engine from the dynamometer.
NOTE: If the engine is to be stored temporarily and does not have permanent-type antifreeze, it is necessary to drain all coolant. Drain locations are identified on the engine side views, pages 8-4 and 8-5.
Prepare the engine for Engine Painting (8-08)
