Repair 7

How to Remove Injectors From a 6 9 International Diesel Engine

International Harvester Corp. made a series of eight-cylinder diesel engines for use in Ford F-series pickup trucks from 1982 to 1994. These engines used indirect injection, a form of mechanical fuel injection that does not require electronic control. The 6.9-liter version of the International diesel engine was in production from 1983 to 1987. The procedure for removing the fuel injectors is generally the same for all Ford vehicles that have a 6.9-liter International diesel engine.

Instructions

1

Clean the fuel injector nozzles and the surrounding area with clean fuel oil to avoid contaminating the engine when you remove the fuel injectors. Clean the fuel line connections to the fuel injector to keep debris out of the fuel system. Blow the fuel injectors clean with an air compressor.

2

Release the clamps on the fuel lines to the fuel injectors, and disconnect the fuel lines from the fuel injectors. Remove the leak-off tees from the fuel injectors, and move them out of the way. Cover the open ends of the fuel injectors with plastic caps to keep dirt out of the fuel injectors.

3

Turn the fuel injectors counterclockwise with a socket wrench, and remove them from the injector bores. Cover the nozzle ends of the fuel injectors with plastic caps to avoid fuel contamination.

4

Extract the copper gasket from the injector bore with special tool T71P-19703-C, if the gasket is not on the fuel injector nozzle.

5

Store the fuel injectors in a holder with numbered holes. Place each fuel injector in the hole corresponding to that fuel injectors cylinder number. This ensures that you will reinstall each fuel injector into the correct injector bore.