Chassis Dynamometer (14-03) Section 14 - Engine Testing - Group 14 M11 Page 14-40 To properly monitor engine performance, record the fol- lowing parameters. To limit dynamometer operating time, instrument the engine to make as many checks as pos- sible. Engine speed rpm with a verified tachometer Fuel pressure Fuel rate (Use Service Tool, Part No.
3376375) Fuel temperature (if needed to correct fuel rate) Fuel inlet restriction Fuel drain line restriction Intake manifold pressure Intake air restriction Exhaust air restriction Coolant temperature Engine blowby Lubricating oil pressure Coolant pressure Inlet manifold air temperature Turbocharger inlet air temperature Engine Speed (RPM) With a Verified Tachometer Use digital optical tachometer, Part No. 3377462, to check and verify engine speed.