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ARMY TM 9-2815-253-24 AIR FORCE TO 38G1-93-2 MARINE CORPS TM 2815-24/3 3-17.  FUEL INJECTOR. 3-17.1.  Removal. WARNING Fuel  is  flammable.    Keep  fuel  away  from  heat  and  open  flame.    Failure  to  observe  this  warning could result in severe personal injury or death. CAUTION Do not apply excessive force to injection fuel pipes.  Failure to observe this caution could result in damage to fuel pipes. NOTE Catch fuel in suitable container. a. Disconnect and remove fuel injector pipe (3 or 4, FIGURE 3-13).  Refer to paragraph 3-18.1. b. Disconnect fuel return hose (5) from injector (8). c. Remove bolt (6) securing clamp (7); remove clamp. d. Remove fuel injector (8) from cylinder head. e. Remove injector copper sealing washer (9) from cylinder head taking care not to damage seating area. f. Cover all openings. 3-17.2.  Inspection. a. Check nozzle body and nozzle needle for damage or deformation.  If damaged or deformed, replace fuel injector nozzle. b. Inspect threaded components for thread damage and replace as necessary. 3-17.3.  Test. a. Attach fuel injector to a fuel injector tester.  Point fuel injector into a clear container. WARNING Keep body clear of test spray.  Fluid can be injected into blood-stream causing blood poisoning and possible death. b. Open valve on fuel injector tester and operate lever at one stroke per second. c. Spray should start at 3480 psi (23,995 kPa) for used injector and 3552 to 3697 psi (24,491 to 25,491 kPa) for new injector and a well atomized spray pattern should be visible. d. Injector leakoff rate is 10 to 40 seconds between 2205 and 1470 psi (15,203 and 10,136 kPa). Change 3  3-27


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