Cummins N14 STC, Celect, Celect Plus – Service Manual 014-001   Dynamometer Worksheet

Table of Contents

Worksheet

Worksheet

TOC

Date: Repair Order Number Operator:
ESN: CPL: Fuel Pump Code:
Complaint: SC Code:
Parameter Code Specifications Actual Reading
Fuel Pressure (psi @ rpm) Use Specifications – Engine Testing  
Fuel Rate (lb/hr)    
Intake Manifold. Pressure (in.Hg) See Fuel Pump Code  
Intake Manifold. Temperature    
*Intake Air Restriction 25 in. H 2O, Maximum  
*Exhaust Air Restriction 3 in. Hg, Maximum  
*Fuel Inlet Restriction Use Specifications – Engine Testing  
*Fuel Drain Line Restriction 3.5 in. Hg  
Engine Blowby (New Engines) Maximum: 12 in. H 2 0  
Engine Blowby (Used Engines) Maximum: 18 in. H 2 0  
* 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
Engine Speed Fuel *Rate/Pressure Fuel Temperate Turbocharger Inlet Air Temperature Intake Manifold Temperature/Pressure Coolant Temperature/Pressure Engine Blowby Lubricating Oil Press HP or Torque
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
* 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

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Last Modified:  16-Feb-2005