TM 9-2815-225-34&P 3-28. CAM FOLLOWER ASSEMBLIES AND CAMSHAFT REMOVAL THIS TASK COVERS: Removal INITIAL SETUP: APPLICABLE MODELS REFERENCES (TM) All Automotive repairman MOS 63H SPECIAL TOOLS REFERENCE (TM) None None TEST EQUIPMENT TROUBLESHOOTING REFERENCES None Para. 2-8 MATERIALS/PARTS EQUIPMENT CONDITION Gasket (as required) (15434) 3011878 Front gear cover removed (para. 3-27). (M915/Big Cam I) Six lockwashers (15434) S604 (M915/Big Cam I) SPECIAL ENVIRONMENTAL CONDITIONS Gasket (15434) 3020000 (M915A1/Big Cam III) Work area clean and away from blowing dirt and Gasket (as required) (15434) 3020001, dust. 3020002, 3020003, 3020004 (M915A1/Big Cam III) GENERAL SAFE INSTRUCTIONS None LOCATION/ITEM ACTION REMARKS Removal NOTE Perform steps 1 and 2 to remove any one of the three cam follower assemblies.  Mark each cam follower assembly during removal so it can be installed in its original position on cylinder block. All   three   cam   follower   assemblies   must   be   removed   from   cylinder   block   before camshaft  can  be  removed.    Repeat  steps  1  and  2  to  remove  each  remaining  cam follower assembly. 1. Six screws (5) Remove from cam follower Discard lockwashers (6) assembly (4) and cylinder block (M915/Big Cam I). (2).  Remove six lockwashers (6) (M915/Big Cam I). NOTE Measuring  thickness  of  gasket  or  gaskets  for  each  cam  follower  assembly  is  required  for correct timing of injectors due to individual differences between castings. 2. Cam follower assembly (4) a.  Carefully pry from dowels on and gasket (3) cylinder block (2). b.  Measure gasket (3) at points A, Use a suitable micrometer to B, and C as shown.  Record the measure gaskets (3).  Discard average thickness of gasket or gasket(s) (3) after taking mea- gaskets for each cam follower surement.  Refer to Appendix B, assembly (4). Figure 7 for additional gasket sizes available. 3-66