Section 14 - Engine Testing - Group 14 Dynamometer Worksheet M11 Page 14-19 Dynamometer Worksheet Date Repair Order No. Operator ESN CPL Fuel Pump Code Complaint SC Code PARAMETER CODE SPECIFICATIONS ACTUAL READING Fuel Pressure (psi @ RPM) 150 to 180 at Governed Fuel Rate (lb/hr) Intake Mfd. Pressure (in.Hg) See Fuel Pump Code Intake Mfd. Temperature *Intake Air Restriction 25 in. H 2 0, Maximum *Exhaust Air Restriction 3 in. Hg, Maximum *Fuel Inlet Restriction 10 in. Hg (Dirty Filter), Maximum *Fuel Drain Line Restriction 3.5 in. Hg Engine Blowby 12 in. H 2 0 New Engines, Max. 18 in. H 2 0 Used Engines, Max.
*Recorded at Maximum Horsepower Speed and Full Load Road Speed Limit Engine High Speed Limit Check Oil Level Low High OK Fuel Quality OK Not OK Turbo Inlet Air Temp Intake Manifold Temp/Press Coolant Temp/Press Engine Blowby Lube Oil Press Horse power or Torque Engine Speed Fuel *Rate/Press Fuel Temp * Be sure that the fuel rate is corrected for temperature.
Fuel Temperature Correction for Flow Rate Less than 7°C[45°F] Flow meter not accurate 7 to 13°C[45 to 55°F] Subtract 2% from flow rate reading 13.0 to 20.0°C[55 to 68°F] Subtract 1% from flow rate reading 20.0 to 29°C[68 to 85°F] No Correction 29 to 42°C[85 to 108°F] Add 1% to flow rate reading 42 to 56°C[108 to 132°F] Add 2% to flow rate reading 56°C above [132°F] Flow meter not accurate. Pressure Conversions 1 in. H 2 0 = 0.074 in. Hg = 0.036 psi 1 in. Hg = 13.514 in. H 2 0 = 0.491 psi 1 psi = 2.036 in. Hg = 27.7 in. H 2 0 This Page Can Be Copied For Your Convenience.