Holley Fuel Filter Replacement Pg. 1
Part of periodic carburetor maintenence involves replacing the fuel filter(s). I personally recommend replacing them once a year regardless of how often a vehicle gets driven.
To print a copy of this aticle or save a copy for reference please click on this link: Holley Filters PDF.
On most Holley carburetors, the filters are located in a cavity inside the float bowls just behind the fuel inlet fittings where the fuel lines attach to the float bowls. Removal & replacement is a relatively simple procedure, the only potential issues are installing the components in an incorrect manner and damaging the fuel inlet threads (i.e. cross-threading).
The following will guide you through the removal & reinstallation process for most Holley carburetors.
Below you will see the bronze filter element which is partially visible through the fuel inlet opening in the fuel inlet fitting.
Begin by carefully removing the fuel inlet fitting using the appropriately sized open-end wrench. Most Holley carburetors (and many Quadrajets as well) will require a 1" wrench. Be sure to use a quality wrench to avoid damaging the fitting.
Below are all of the components as removed from the carburetor. From left to right:
-Fuel inlet fitting
-Fuel filter gasket (small)
-Fuel inlet fitting gasket (large)
-Filter bypass spring