ARMY TM 9-2815-253-24 AIR FORCE TO 38G1-93-2 MARINE CORPS TM 2815-24/3 3-17.4.  Installation. a. Remove all covers. b. Ensure seating in cylinder head is clean and smooth. NOTE If   injector   sealing   washer   (9,   FIGURE   3-13)   has   been   used   more   than   once   it   will   become compressed  and  may  adversely  affect  combustion.    It  is  recommended  that  new  injector  sealing washers are installed on assembly.  Ensure that two washers are not installed to an injector. c. Lightly smear a very small amount of general purpose grease (630AA) to one side of new injector sealing washer (9).  Place one washer only over each injector nozzle greased side first. d. Install injector (8). e. Install damp (7) and finger tighten bolt (6). f. Install a new performed packing (2) into recess on cylinder head cover. g. Install injector pipe (3 or 4) and finger tighten nuts. h. Install cylinder head cover nut retaining injector pipe clip and tighten to 78 in-lbs (8.8 Nm). i. Tighten injector clamp bolt (6) to 186 in-lbs (21.0 Nm). j. Tighten injector pipe (3 or 4) nuts to 21.0 in-lbs (28.5 Nm). k. Install injector fuel return hose (5). 3-18.  FUEL INJECTOR PIPES AND FUEL RETURN LINE. 3-18.1.  Removal. a. Disconnect hose (10, FIGURE 3-13) from union (11). b. Remove union (11) and washer (12) from end of fuel supply hose. c. Disconnect hose (10) from tee fitting (13).  Remove tiedown straps (14) and remove hose (10).  Discard tiedown straps. d. Remove hoses (5) from fuel injectors (8) and tee fittings (13). e. Remove tee fittings (13) from hose (15); remove hose (15). f. Disconnect hose (16) from tee fitting (13); remove hose (16). g. Loosen nuts on fuel injector pipes (3 and 4) at fuel injection pump and fuel injector (8). h. Remove  cylinder  head  cover  nuts  (1)  securing  fuel  injector  pipes  (3  and  4)  dips;  remove  pipes  (3  and  4)  if damaged, replace preformed packing (2). i. Cap all openings. 3-18.2.  Inspection. a. Inspect fuel injector pipes for wear, kinks, or fitting damage.  Replace as necessary. b. Inspect hoses for cracks, deterioration, or any other damage. 3-18.3.  Installation. a. Remove all caps. b. Connect fuel injector pipes (3 and 4, FIGURE 3-13) to fuel injectors (8) and fuel injection pumps.  Tighten nuts finger tight. c. Secure fuel injector pipe clips using cylinder head cover nuts (1).  Tighten nuts to 78 in-lbs (8.8 Nm). d. Starting at fuel injector (8), tighten fuel injector pipes (3 and 4) nuts to 21.0 ft-lbs (28.5 Nm). 3-29