Replacing a car fuel filter is important for engine performance. The fuel system uses one of three types of fuel filters to clean out particulates that can get into gasoline due to dirt in your gas tank or in the pump at the gas station. Dirt that gets into the carburetor blocks the delivery of fuel and impedes engine performance. For this reason having a clean fuel filter is important.
Types of Fuel Filters
There are three different types of fuel filters. The first is totally visible and is connected directly to the fuel line. This type is simply known as an in line filter. The second type is also visible and is fastened to the carburetor inlet. Though its location is different, it is also known as an in line filter. The third type is the most different from the other two, located inside the carburetor inlet. It is fittingly known as an internal fuel filter and it is not visible from the outside. Having these tips can help you easily establish what type of filter you have and where it is located, which makes locating it a snap. Replacing the filter is a bit different for all three types.
Direct Fuel Line Filter Replacement
Replacing an in line filter connected to the fuel line is a fairly simple matter, even with new electric vehicles. Start with the engine cold and put a rag under the filter to catch any gasoline that drips while you work. Release the clamps holding the filter in place with pliers or a screwdriver. Release the filter by pulling the hoses out from the fuel line. The new in line fuel filter will have an arrow indicating direction of flow of fuel. Put the new filter in position with the arrow pointing in the direction of the carburetor. Attach hoses back ion and secure the clamps. Remove the rag that you had in place and start the engine. While the motor idles, check the hoses to be sure there are no fuel leaks.
Carburetor Attached Inline Filter Replacement
For in line filters attached to the carburetor, start with that same rag to catch dripping gas. Remove the air filter housing off of the carburetor and unscrew the fuel line. Unscrew the filter and remove it from the carburetor. Screw in the new fuel filter and tighten it into place, reattach the fuel line and secure it. Remove the rag that had been used to catch drips and start the car to check for possible fuel leaks. If there are no leaks the replacement job is done.
Internal Fuel Filter Replacement
Replacing a fuel filter inside the carburetor is again a process that is pretty manageable in its level of difficulty. Use that same rag and get it into place underneath the fuel line where it meets the carburetor inlet and take the air filter housing off of the carburetor. Loosen the fuel line from the carburetor inlet and unscrew and remove the nut that holds the fuel filter inside the carburetor. This filter is equipped with a spring and it will pop out once it has been loosened.
When you get rid of the old filter, keep the spring, because the new fuel filter probably won’t come with one. Push the new filter up against the spring in the carburetor inlet, and screw the nut back into place, turning it as far as possible by hand and then finishing with a wrench. Reattach the fuel line and secure it, remove the rag, and start the engine to check for gas leaking from the line. Follow this advice, and you will properly replace car fuel filters each time it is needed.