Quantcast FIGURE 3-113.  Fuel Injection Nozzle Seals

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ARMY TM 9-2815-256-24 AIR FORCE TO 38G1-96-2 MARINE CORPS TM 2815-24/5 3-29.4. Installation. 3-29.4.1 Install Seals On Nozzle. CAUTION Each time an injection nozzle is removed from cylinder head, replace carbon stop seal (6, FIGURE 3-112) with a new one. a. Position protector cap (1, FIGURE 3-113) over nozzle tip.  A nozzle protector cap can be found on every new or replacement nozzle. b. Position a new carbon stop seal (2) on protector cap.  Use a new seal washer (3) to help slide the carbon seal (2) into place until it seats in its groove on nozzle body. c. Continue to slide seal washer (3) onto nozzle body until it seats against inlet fitting. FIGURE 3-113.  Fuel Injection Nozzle Seals NOTE If nozzle is not going to be installed at this time, install a nozzle protector cap over nozzle tip.  Plug all other openings in nozzle to prevent contamination. 3-29.4.2 Install Injection Nozzle. Warning Compressed  air  used  for  cleaning  can  create  airborne  particles  that  may  enter  the  eyes.    Pressure will not exceed 30 psig (207 kPa).  Eye protection required. CAUTION Before installing injection nozzles, make sure nozzles are clean and free from oil or grease. a. Remove plug (if installed previously) from nozzle bore in cylinder head and blow out bore with compressed air. b. Make sure that sealing surface of the cylinder head (on which the seal washer (7, FIGURE 3-112) will be resting) is smooth and free of damage or dirt.  This could prevent proper sealing.  Dirt and roughness could also cause distortion to nozzle when the attaching bolt (4) is tightened, making the valve stick. 3-136


 


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