The fuel in your car's gas tank commonly contains dirt, rust and other contaminants which may be picked up from many sources-including a storage tank, a fuel dispensing pump, or the automobile tank itself. If these contaminates are not filtered out, they will travel through the fuel system, to the carburetor causing excessive wear and plugging of jets which could result in stalling of the engine. The role of the gasoline filter is to remove these contaminants from the fuel to prevent damage and wear to internal carburetor, fuel injection, and engine parts.

Replacing Your Fuel Filter

In-Line Disposable Type (most common):
Remove the retaining clips which hold the filter in place, and pull the filter off the fuel line. Always use clamp pliers. When installing the new filter, be sure the flow of fuel is in the proper direction indicated by the arrow on the housing. If there is a vapor return line, make sure it is not confused with the fuel outlet.

Replaceable Cartridge Type:
Unscrew the housing cover and pull the old cartridge straight off the housing. Clean the housing and insert new pleated paper cartridge and reassemble housing.

In-Carburetor:
Using two wrenches, disconnect the fuel line at the carburetor. Remove the large retaining nut, the gasket (which may or may not be attached to the nut), and the used filter. Behind the filter is a spring which must be reused to provide proper tension and filter sealing. Install the new filter gasket and retaining nut, and reconnect the fuel line.

Sintered bronze:
Use the same replacement procedure as with the in-carburetor filter (see above).

Important Note:
Servicing should be done when the engine is cool to avoid fire hazards. After installing new gasoline filter, always start the engine and check all connections for leaks.