Mercury D3AZ-9155-C Filter Assembly - Fuel

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Fuel filters are paper replacement type and can be found screwing into carburetor fuel inlet or in fuel line. Ensure engine is cold, sat for at least 3 hours. Collect necessary tools, including appropriate replacement filter, wrenches for flare nut fittings on carburetor-mounted filters, or screwdriver and pliers for in-line types. Have clean rags ready to catch spilled fuel. Remove air cleaner assembly, note positions of vacuum hoses if disconnected. Follow fuel hose from fuel pump to locate filter. For carburetor-mounted filters, use wrench to hold nut, loosen fitting, and disconnect fuel line. Move line for better access, unscrew fuel inlet filter nut, and replace filter, gasket, and spring. Hand-tighten fuel inlet fitting into carburetor, then fully tighten using two wrenches. For screw-in type carburetor filters, remove clamps, hose, and filter, then hand-start new filter and fully tighten. Cut new fuel hose, position spring clamps, and attach to filter and steel fuel supply line. For in-line filters, remove clamps and hoses, cut new hoses, install clamps, and attach to filter, metal supply line, and carburetor inlet fitting. After installation, run engine, check for leaks, and reinstall air cleaner assembly, reconnecting hoses to original positions.

To replace the filter on a Motorcraft - 2700 VV carburetor, remove the air cleaner and discard the filter hose clips. Unscrew and discard the old filter. Install the new filter, ensuring the directional arrow points toward the carburetor. When turning on the engine, look for fuel leaks.

To replace the filter on a Motorcraft - 2700 VV carburetor, remove the air cleaner and discard the filter hose clips. Unscrew and discard the old filter. Install the new filter, ensuring the directional arrow points toward the carburetor. When turning on the engine, look for fuel leaks.

Remove the nuts retaining the filter bracket to the frame rail and remove the filter.

After removing the air cleaner, the fuel line clips at the filter should be loosened.

Fuel filters in carbureted models should be replaced according to the maintenance interval suggestions and when a blockage in the fuel line occurs due to excessive foreign material in the fuel.

Take note of the arrow's direction on the old filter before loosening the clamp or bolts and removing it from the bracket. Install the new filter in the same orientation.

For in-line filters, remove clamps and hoses, cut new hoses, install clamps, and attach to the filter, metal supply line, and carburetor inlet fitting.

After loosening the clips, the fuel lines should be pulled off and the clips should be discarded.

Relieve the fuel system pressure and loosen the fuel filler cap. Disconnect the cable from the negative terminal of the battery.

To replace a carburetor inlet fuel filter, first, detach the line leading to the inlet. Carefully unscrew the carburetor inlet filter unit from the carburetor. To reinstall, thread a new filter into the carburetor and tighten it securely.