Caution: Refer to General Engine Test Procedures – (Chassis Dynamometer) (8-05) before operating the engine to avoid internal component damage.
NOTE: Refer to Chassis Dynamometer Operation on page 8-20 for general operating procedures and safety precautions.
NOTE: Operate the vehicle in a gear that produces a road speed of 90 to 95 km/h [55 to 60 mph].
Operate the engine at 1,200 RPM and 25 percent of torque peak load until the water temperature reaches 7 0 °
C [160° F],
Operate the engine at 1,200 RPM and 40 percent of torque peak load for 2 minutes. Check the gauges, and
record the readings.
Operate the engine at 1,600 RPM and 65 percent of torque peak load for 5 minutes. Check the gauges, and
record the readings.
Operate the engine at torque peak RPM and full load for 4 minutes. Check the gauges, and record the readings.
NOTE: Refer to the engine data sheet for the torque peak RPM of the engine model being tested.
Operate the engine at rated speed (RPM) and full load for 4 minutes. Check the gauges, and record the readings.
Compare the readings to those published on the appropriate engine data sheet.
Caution: Do not shut off the engine immediately after the run-in is completed. Allow the engine to cool by
operating it at low idle for a minimum of 3 minutes to avoid internal component damage.
Make sure all instrumentation is removed before removing the vehicle from the dynamometer.
