Honda Accord/Civic/Prelude 1973-1983 Repair Guide

Mechanical Fuel Pump

Print

REMOVAL & INSTALLATION



1170cc and 1237cc Engines

The fuel pump in the Civic is located in back of the engine, underneath the air cleaner snorkel.

  1. Remove the air cleaner and cover assembly.
  2.  
  3. Remove the inlet and outlet fuel lines at the pump.
  4.  
  5. Loosen the pump nuts and remove the pump.
  6.  

Do not disassemble the pump. Disassembly may cause fuel or oil leakage. If the pump is defective, replace it as an assembly.

  1. To install the fuel pump, reverse the removal procedure.
  2.  

TESTING



  1. Check the following items.
    1. Looseness of the pump connector.
    2.  
    3. Looseness of the upper and lower body and cover screws.
    4.  
    5. Looseness of the rocker arm pin.
    6.  
    7. Contamination or clogging of the air hole.
    8.  
    9. Improper operation of the pump.
    10.  

  2.  
  3. Check to see if there are signs of oil or fuel around the air hole. If so, the diaphragm is damaged and you must replace the pump.
  4.  
  5. To inspect the pump for operation, first disconnect the fuel line at the carburetor. Connect a fuel pressure gauge to the delivery side of the pump. Start the engine and measure the pump delivery pressure.
  6.  
  7. After measuring, stop the engine and check to see if the gauge drops suddenly. If the gauge drops suddenly and/or the delivery pressure is incorrect, check for a fuel or oil leak from the diaphragm or from the valves.
  8.  
  9. To test for volume, disconnect the fuel line from the carburetor and inset it into a one quart container. Crank the engine for 60 seconds at 600 rpm, or 40 seconds at 3,000 rpm. The bottle should be half full (1 pint).
  10.  

 
label.common.footer.alt.autozoneLogo