Mercury 6W1Z-9H307-D Sender And Pump Assembly

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For models made in 1995 or earlier, siphon the remaining fuel from the tank, release pressure from the pump, disconnect the battery, lift the vehicle securely, unplug all fuel lines and electrical connectors, rotate the lock ring anti-clockwise, take out pump assembly then clean strainer before reinstalling it with a new seal ring. However, on 1996 and later models you will need to remove the fuel tank and mounting bolts to lift out the pump assembly, which no longer requires using the old seal but one should consider checking the strainer's cleanliness as well as replacing or cleaning the pump itself, before putting back the flange mountings and tank surfaces can be cleaned together with ensuring that there is fresh grease for this new installation.

The system pressure is checked both with and without the engine running.

Disconnect the negative battery terminal, raise the vehicle securely on jackstands, and disconnect the fuel lines and electrical connector from the fuel pump/fuel level sender assembly.

It is attached to the test port after relieving pressure.