CUMMINS N14 - Section 8 - Engine Testing

Section 8 - Engine Testing
Section Contents
Page
Chassis Dynamometer Operation ................................................................................................................... 8-39
Definition of Terms On Engine Performance Curve......................................................................................... 8-3
Cummins N14 Heavy Duty Engine Operating Curve Definitions: ..................................................................... 8-3
Dynamometer Worksheet................................................................................................................................ 8-38
Engine Dynamometer - Install Engine .............................................................................................................. 8-9
Air Compressor ............................................................................................................................................. 8-15
Air Inlet Restriction........................................................................................................................................ 8-12
CELECT™ Engine Throttle Control................................................................................................................. 8-16
Coolant Plumbing ........................................................................................................................................... 8-9
Engine Blowby .............................................................................................................................................. 8-13
Engine Speed (RPM) With a Verified Tachometer ......................................................................................... 8-14
Exhaust Restriction ....................................................................................................................................... 8-12
Fuel Drain Line Restriction............................................................................................................................ 8-15
Fuel Inlet Restriction ..................................................................................................................................... 8-14
Fuel Pressure................................................................................................................................................ 8-14
Fuel Rate ...................................................................................................................................................... 8-13
Intake Air Temperature Control ..................................................................................................................... 8-10
Intake Manifold Pressure............................................................................................................................... 8-13
Lubricating Oil Pressure................................................................................................................................ 8-12
Lubricating Oil Temperature.......................................................................................................................... 8-12
Starting Motor ............................................................................................................................................... 8-16
Engine Run-In Procedure - Chassis Dynamometer ........................................................................................ 8-49
Engine Run-In Procedure - Engine Dynamometer.......................................................................................... 8-34
Engine Run-In Procedure Without Dynamometer .......................................................................................... 8-53
Off-Highway .................................................................................................................................................. 8-53
On-Highway .................................................................................................................................................. 8-53
Engine Testing General Information................................................................................................................. 8-2
Chassis Dynamometer, Portable Dynamometer or Load Bank Run-In ............................................................. 8-2
Engine Dynamometer Run-In .......................................................................................................................... 8-2
In-Service Run-In ............................................................................................................................................ 8-2
Engine Testing - Service Tools......................................................................................................................... 8-7
Fuel Flow Measurement on Engine or Chassis Dynamometer ...................................................................... 8-20
Installation .................................................................................................................................................... 8-20
Operation ..................................................................................................................................................... 8-21
General Engine Test/Run-In Specifications...................................................................................................... 8-6
General Run-In Procedures............................................................................................................................... 8-4
General Test Procedure - Chassis Dynamometer .......................................................................................... 8-41
Charge Air Cooler Restriction........................................................................................................................ 8-46
Coolant Pressure .......................................................................................................................................... 8-49
Engine Blowby .............................................................................................................................................. 8-48
Engine Speed (RPM) With a Verified Tachometer ......................................................................................... 8-42
Exhaust Air Restriction.................................................................................................................................. 8-47
Fuel Drain Line Restriction............................................................................................................................ 8-44
Fuel Inlet Restriction ..................................................................................................................................... 8-43
Fuel Pressure (STC Engines Only) ................................................................................................................ 8-42
Fuel Rate ...................................................................................................................................................... 8-43
Intake Air Restriction..................................................................................................................................... 8-47
Intake Air Temperature Control - Chassis Dynamometer Test ....................................................................... 8-45
Intake Manifold Pressure............................................................................................................................... 8-45
Lubricating Oil Pressure................................................................................................................................ 8-49
Intake Manifold Boost Pressure Correction Factors ...................................................................................... 8-23
Section 8 - Engine Testing
N14 Page 8-1