3054 and 3056 Industrial and Generator Set Engines Caterpillar


Fuel System Pressure - Test

Usage:

3056 1ML


Illustration 1g00761195
The fuel transfer pump is located on the right hand side of the cylinder block.
(1) Fuel transfer pump
(2) Priming lever
(A) Fuel inlet
(B) Fuel outlet

The pressure test measures the output pressure of the fuel transfer pump. Low fuel pressure and starting difficulty may be indications of problems with the fuel transfer pump.

  1. Disconnect the line for the fuel outlet (B).

  2. Put a pressure gauge in the fuel outlet (B) of the fuel transfer pump (1).

  3. Prime the fuel system in order to eliminate air from the fuel transfer pump. Refer to Testing and Adjusting, "Fuel System - Prime" for the proper procedure.

  4. Disconnect the fuel injection pump solenoid wire (if equipped). Put the fuel shutoff lever in the fuel shutoff position.

  5. Crank the engine for ten seconds. Record the maximum pressure. The pressure indication on the gauge should be in the following ranges:

    Static pressure for the 3054 engine ... 42 to 70 kPa (6 to 10 psi)

    Test pressure for the 3054 engine ... 31 kPa (4.5 psi)

    Static pressure for the 3056 engine ... 35 to 55 kPa (5 to 8 psi)

    Test pressure for the 3056 engine ... 26 kPa (3.8 psi)

  6. If the pressure is less than the minimum pressure, the fuel transfer pump must be replaced.

  7. Observe the rate that the pressure drops. If the pressure drops to one half of the maximum pressure in less than 30 seconds, the fuel transfer pump must be replaced.

  8. Remove the pressure gauge from the fuel transfer pump. Connect the outlet line to the fuel transfer pump (1). Prime the fuel system in order to eliminate air from the fuel system. Refer to Testing and Adjusting, "Fuel System - Prime" for the proper procedure.

  9. Connect the fuel injection pump solenoid wire.

Caterpillar Information System:

3500B Engines Turbocharger
3500B and 3500B High Displacement Engines for Caterpillar Built Generator Sets Cat Data Link
3054, 3054B and 3056 Marine Engines Fuel System - Prime
3500B and 3500B High Displacement Engines for Caterpillar Built Generator Sets Analog Sensor Supply
Cross-Reference for Electrical Connectors {7553} Cross-Reference for Electrical Connectors {7553}
3054 and 3056 Industrial and Generator Set Engines Fuel Injection Timing - Check
3054 and 3056 Industrial and Generator Set Engines Fuel Injection Nozzle - Test
3054 and 3056 Industrial and Generator Set Engines Finding Top Center Position for No. 1 Piston
UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Getting Started
3500B and 3500B High Displacement Engines for Caterpillar Built Generator Sets System Overview
Marine Monitoring System II Using LED Indicators to Troubleshoot Modules
3054, 3054B and 3056 Marine Engines Electrical System
C-15 and C-16 Industrial Engines Gauges and Indicators
C-15 and C-16 Industrial Engines Engine Oil Pan
3500B and 3500B High Displacement Engines for Caterpillar Built Generator Sets Digital Sensor Supply
3500B and 3500B High Displacement Engines for Caterpillar Built Generator Sets ECM/Personality Module
3500B and 3500B High Displacement Engines for Caterpillar Built Generator Sets Emergency Stop Switch
3126B Industrial Engine Fuel Filter Base - Remove and Install
3126B Industrial Engine Air Inlet Heater - Remove and Install
3126B Industrial Engine Engine Oil Pan - Remove and Install
3126B Industrial Engine Belt Tightener - Install
3126B Industrial Engine Belt Tightener - Remove
3126B Industrial Engine Vibration Damper and Pulley - Remove and Install
C-10 and C-12 Industrial Engines Air Inlet and Exhaust System
Back to top
The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
CH-Part.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.