B5.9G, B5.9LPG – Troubleshooting and Repair Manual – 014-003   Engine Run-in (Chassis Dynamometer)

NOTE: Refer to Procedure
014-002 before operating the engine to avoid internal component damage.

NOTE: Refer to Procedure
014-005 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 [56 to 59 mph].

Operate the engine at 1200 rpm and 25 percent of torque peak load until the water temperature reaches 70°C [158°F].

Operate the engine at 1200 rpm and 40 percent of torque peak load for 2 minutes. Check the gauges, and record the readings.

Operate the engine at 1600 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.