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TM 9-2815-225-34&P 3-85.  INJECTOR AND VALVE ADJUSTMENT THIS TASK COVERS: Adjustment INITIAL SETUP: APPLICABLE MODELS REFERENCES (TM) All None SPECIAL TOOLS TROUBLESHOOTING REFERENCES Torque driver (15434) ST-669 Para. 2-8 TEST EQUIPMENT EQUIPMENT CONDITION None Rocker arm housing assembly installed (para. 3-84). MATERIALS/PARTS SPECIAL ENVIRONMENTAL CONDITIONS None Work area clean and away from blowing dirt and dust. PERSONNEL REQUIRED Automotive repairman MOS 63H GENERAL SAFETY INSTRUCTIONS None LOCATION/ITEM ACTION REMARKS Adjustment CAUTION Injector specifications and valve clearances given are for a cold engine only.  Do not use these specifications or clearances for a warm or hot engine or damage will result to related parts. NOTE   Engine  cylinders  are  numbered  in  sequence,  starting  at  front  with  No.  1  cylinder.    The engine firing order is 1-5-3-6-2-4.   The  valves  and  injectors  for  the  same  cylinder  are  not  adjusted  at  same  index  mark  on accessory  drive  pulley.    One  pair  of  valves  from  one  cylinder  and  one  injector  on  a different cylinder are adjusted at each pulley index mark before rotating accessory drive to next index mark.   Two crankshaft revolutions are required to adjust all valves and injectors. 1. Accessory drive pulley a.  Remove paint on timing Use a medium-grit emery cloth. assembly (1) marks A (2), B (3), and C (4). Only the A (2), B (3), and C (4) timing marks will be used for injector and valve adjustment. b.  Rotate engine crankshaft clock- Do not use nut (5) on the wise until line in front of timing accessory drive pulley assembly (1) mark A (2) aligns with pointer (6) to rotate.  The intake and exhaust on front gear cover (7). rocker lever assemblies (10) for cylinder No. 5 will be loose.  If they are not, rotate crankshaft another 360 and realign the A mark (2). 3-644


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