40003 57 Mercruiser SCREW

Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire. To help prevent possible injury, turn the start switch off when changing fuel filters or water separator elements. Clean up fuel spills immediately.
Do not allow dirt to enter the fuel system. Thoroughly clean the area around a fuel system component that will be disconnected. Fit a suitable cover over disconnected fuel system component.
Turn the fuel supply valve to the OFF position before performing this maintenance. Place a tray under the fuel filter in order to catch any fuel that might spill. Clean up any spilled fuel immediately.
Turn the fuel supply valve to the OFF position. Place a tray under the fuel filter in order to catch any fuel that might spill. Clean up any spilled fuel immediately.
Clean the outside of the fuel filter assembly.
Illustration 1 g00803020
Loosen the drain valve (3) at the bottom of the fuel filter (2). Drain the fuel into a suitable container.
Loosen and remove the old fuel filter (2) from the fuel filter base (1). Dispose of the element properly.Note: Replacement fuel filters have an inner seal assembly. The seal is held into position by a plastic clip. Damage to the fuel injection pump may occur if the seals are not installed correctly.
Lightly lubricate the two O-ring seals of the new fuel filter assembly (2) with clean diesel fuel.
Install the new fuel filter assembly (2) to the fuel filter base (1). Tighten 1/2 of a turn to 3/4 of a turn past hand tightening.
Prime the fuel system. Refer to the Operation and Maintenance Manual, "Fuel System-Prime" for more information. 3056 Marine Engine
Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire. To help prevent possible injury, turn the start switch off when changing fuel filters or water separator elements. Clean up fuel spills immediately.
Do not allow dirt to enter the fuel system. Thoroughly clean the area around a fuel system component that will be disconnected. Fit a suitable cover over disconnected fuel system component.
Turn the fuel supply valve to the OFF position. Place a tray under the fuel filter in order to catch any fuel that might spill. Clean up any spilled fuel immediately.
Clean the outside of the fuel filter assembly. Note: Both of the fuel filter elements need to be replaced at the same time if the engine is equipped with two fuel filter elements.
Illustration 2 g00749869
Hold the bottom cover (4) of the filter assembly. Remove the bolt (1) from the center of the element.
Lower the bottom cover (4) .
Remove the fuel filter element (3) and dispose of the elements properly.
Clean the inside surfaces of the fuel filter base (2). Clean the bottom cover (4) .
Replace the O-ring on the fuel filter base (2). Replace the O-ring on the bottom cover (4) .
Do not fill fuel filters with fuel before installing them. Contaminated fuel will cause accelerated wear to fuel system parts.
Insert bottom cover (4) onto new element (3). Ensure that the element is installed properly to the bottom cover (4). Place the element (3) to the fuel filter base (2). Install the bolt (1) .
Prime the fuel system. Refer to the Operation and Maintenance Manual, "Fuel System-Prime" for more information.