Saturday, February 22, 2014
How to Replace Injectors in a 1988 Ford Diesel
Diesel engines are most common on larger pickup trucks, such as the Ford F-250. This truck has a rated carrying capacity of 3/4 ton, although it can actually carry much more weight. The only diesel engine available on a 1988 F-series truck was an eight-cylinder 7.3-liter engine. Each fuel injector delivers fuel to a cylinder in a specific sequence and amount. Its theore essential that you install each fuel injector into the correct cylinder.
Instructions
- 1
Release the clamps on the fuel lines to the fuel injectors and disconnect the fuel lines with a flare nut wrench. Discard the gaskets for the fuel lines and push the fuel lines to the side so you can access the fuel injectors.
2Cover the top end of the fuel injectors with plastic caps to keep them clean. Turn the fuel injectors counterclockwise and pull them from the engine. Record the cylinder of each fuel injector as you remove it. Cover the nozzle end of the fuel injectors with plastic caps.
3Remove the copper gasket from the nozzle of each fuel injector with tool T71P-19703-C and discard the gasket. Clean the bore of the fuel injectors with tool T83T-9527-A and blow compressed air into the bore to remove any carbon or metal particles.
4Remove the cap from the nozzle of each fuel injector. Apply a small amount of grease to the nozzle and install a new copper gasket to the fuel injector.
5Apply an anti-seize compound to the fuel injector threads to prevent the injectors from sticking. Install the fuel injector to its correct cylinder head and tighten it to 33 ft. lbs. with a torque wrench. Remove the protective caps from the open end of the fuel injectors.
6Install new O-rings on the fuel return line and connect the fuel lines to the fuel injectors with a flare nut wrench. Attach the clamps for the fuel lines. Start the engine and check for fuel leaks.
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