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REMOVAL & INSTALLATION

NOTE: Be sure to obtain new fuel pump gaskets before installation.

  1. Open the hood and disconnect the negative battery cable.
  2. Mark the fuel inlet, outlet and (if applicable) return lines near the fuel pump connections, to avoid confusion during installation.
  3. Slide the fuel line clips back off the pump connectors. Then, twist and pull the fuel lines off the pump. Note that the 323 and 626 have inlet and return lines on the top of the pump and an outlet on the side.
  4. Unfasten the mounting bolts (usually two) from the block or cylinder head, then remove the pump, gaskets, and spacer.

    To install:

  5. Position new gaskets with the spacer and fuel pump on the block or cylinder head, then install the mounting bolts.
  6. Attach the inlet, outlet and (if applicable) return lines to the appropriate connections on the pump and secure them with the line clips.
  7. Connect the negative battery cable. Start the engine and check for fuel leaks.

    Fig. 1: Most mechanical fuel pumps have inlet and return lines attached at the top — 626 shown; 323 similar

    Fig. 2: Before disconnecting any lines, label them for easier installation

    Fig. 3: Squeeze the spring-type fuel line clips with a pliers in order to slide them back at free the line

    Fig. 4: Twist and pull the fuel lines from the pump

    Fig. 5: Unfasten the fuel pump's retaining bolts

    Fig. 6: Disengage the fuel pump's actuating lever, then remove the pump

    Fig. 7: Be sure to also remove the old gaskets and spacer

    Fig. 8: Exploded view of mechanical fuel pump components — 323 shown

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