Mercury E3FZ-9155-F Filter Assembly - Fuel

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Find the current filter that is on the frame rail near the fuel tank, and buy a new fuel filter for fuel injected models. You should clean hose fittings, pull out hairpin clips, and separate fuel hoses from the filter. Before removing the old filter from its bracket, observe which way the arrow points on it, and loosen clamps or bolts that hold it in place. Attach the new filter to the bracket and put it in place without changing anything else before connecting the hose with hairpin clips. Start your engine and look for any leaking gasoline. To begin with, on carbureted models you need to remove air cleaner housing. Underneath it, you will have to place a rag then disconnect the fuel line(s) from filter. Use clamps to secure an inline filter properly. For carburetor mounted filters, if you find it necessary, remove either old filters or fuel inlet fitting(It could be one of these two), apply thread sealant where necessary then screw tightly ensuring a new filter is correctly installed.

Remove the filter-to-fuel line retainer clips if equipped. Then, remove the fuel lines from the filter.

Fuel filters are typically the paper replacement type and can be found either screwing into the carburetor fuel inlet or located in the fuel line.

The first step is to remove the carburetor air cleaner.

If an internal filter is located inside the carburetor inlet, the spring, gasket, and filter must be removed. Assemble the new filter, seal, and spring in the reverse order of their removal.

On models with the filter mounted on the outside of the carburetor, you'll need to loosen the screw clamp, disconnect the rubber hose, unscrew the fitting, and detach the filter.

On models with the filter located inside the carburetor, you'll need to hold the large fuel inlet fitting with a wrench, loosen the fitting at the end of the metal fuel line, unscrew the fuel inlet tube nut, and remove the gasket, filter, and spring.

The first step is to remove the carburetor air cleaner.

Remove the bolts and detach the filter and bracket assembly. On 1988 through 1994 models, note which way the arrow is pointing - the new filter must be installed the same way.

The first step is to remove the air cleaner assembly, noting the positions of vacuum hoses if disconnected.

Place a rag under the filter, unscrew the line while holding the filter hex with a back-up wrench, and use a flare-nut wrench if available to prevent rounding off the fuel line fitting hex.

Install the fuel filter mounting bracket on the engine. Install the priming pump assembly on the bracket. Install the fuel filter lines and clamps.

The fuel filter is located on the inside of the left-side frame rail.

It is recommended that the fuel filter be replaced periodically. The filter is of one-piece construction and cannot be cleaned, so it must be replaced.

To remove this type of filter, unscrew the canister from the bottom of the fuel pump. Slowly lower the canister and filter assembly off the bottom of the fuel pump. Empty the fuel into an approved gasoline container, then remove the filter and gasket assembly. Insert a new filter and gasket assembly. Screw the filter and filter housing assembly back onto the base of the fuel pump. Start the vehicle and check the filter and surrounding area for leaks.