Quantcast TABLE 3-3.  Color Coded Shim Packs for Fuel Pump

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ARMY TM 92815-252-24 AIR FORCE TO 38G1-92-2 g. If removed, install stud (3, FIGURE 3-7). h. Install correct original shim pack (6) on fuel pump (5). (1)   Do not remove or add to original shims installed between pump flange and steel plate. (2)   Use extreme care to ensure that individual shim packs are installed between each fuel pump plate an crankcase and that they are retained with their original respective cylinder. (3)   Shims are available in three sizes and are color coded, refer to TABLE 3-3 TABLE 3-3.  Color Coded Shim Packs for Fuel Pump Color Size Green 0.003 in.(0.075 mm) Slate Blue. 0.005 in(0.125 mm) Black. 0.010 in(0.250 mm) i. If  original  shim  thickness  is  not  known  or  if  fuel  pump  is  being  replaced,  fuel  pump  must  be  timed,  refer  to paragraph 3-14. j. Gently insert fuel pump and shims into crankcase.   Ensure that fuel pump rack engages with slot in governor rack. CAUTION If fuel pump is not turned counterclockwise or moves before tightening, it Is possible that engine will not stop when required. k. Carefully turn fuel pump counterclockwise until pump rack is felt against stop. I. Holding pump in this position, install clamp (2) and secure with nut (1 ) (beveled face towards clamp) finger tight m.   Tighten nut to 25 ft-lbs (33.9 Nm). n. Install fuel injector pipe between pump (5) and fuel injector, refer to paragraph 3-18. o. Connect fuel supply line (11) to fuel injection pump using clamp (4). p. Remove rack setting gage. q. Connect governor fever to rack spring (15, FIGURE 3-19). r. Install end cover, refer to paragraph 3-28.3. 3-14. FUEL INJECTION PUMP TIMING. Warning Cleaning solvent is flammable and toxic to eyes, skin, and respiratory tract.   Skin/eye protection required.   Avoid repeated/prolonged contact.  Good general ventilation IA is normally adequate. Each fuel injection pump is timed individually during assembly at factory and when an existing or new fuel injection pump is  installed,  it  is  only  necessary  to  reinstall  existing  shim  pack  or  a  new  pack  of  same  thickness  as  original.    This procedure ' is necessary only if original shims have been lost or mixed with those of another pump.  Use care to avoid dirt entering into engine during fuel injection pump timing procedure.  If practical, start with a thorough cleaning.  Use dry cleaning  solvent  (P-D-  680)  to  remove  all  external  dirt.    For  each  fuel  injection  pump  to  be  timed,  repeat  following procedure. f. Remove cylinder head cover and fuel injector, refer to paragraphs 3-25.1. and 3-17.1. 3-26


 


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