CUMMINS N14 Specifications download pdf (Page 478)

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101

Engine Run-In Procedure - Chassis

Dynamometer (14-06)

NOTE: Refer to Chassis Dynamometer Operation, Proce-

dure 14-04, for general operating procedures and safety

precautions.

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.

Monitor and record the following measurements during

run-in:

• Compulink (install on CELECT™ engines)

• Lubricating oil pressure

• Coolant temperature

• Fuel pressure

• Torque

• Blowby

• Engine speed (RPM)

• Fuel flow (use service tool, Part No. 3376375)

Refer to the Chassis Dynamometer worksheet on the last

page of this procedure.

To correctly evaluate the engine performance, this ad-

ditional measurement, intake manifold pressure (Turbo-

charger boost), must be observed during engine run-in

phases.

Refer to the Engine Dynamometer worksheet on the last

page of this procedure.

NOTE: It is recommended to monitor block coolant pressure

during run-in to aid in early indication of a cooling system

problem.

Obtain CPL number from the engine data plate and the

fuel pump code from the fuel pump data plate.

Engine performance specifications and fuel system cal-

ibration values are listed for specific engine CPL and fuel

pump codes in the following publications:

1. Fuel Pump Calibration Values, Bulletin No. 3379352.

2. Injector Parts Flow and Cross Reference, Bulletin No.

3379664.

3. Engine Data Sheets

4. N14 Troubleshooting and Repair Manual, Bulletin No.

3810456

Engine Run-In Procedure - Chassis Dynamometer (14-06) Engine Testing

N14Page 14-38

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