TM 9-2815-237-34 2-16.  CYLINDER  BLOCK  REPAIR This  task  covers: a.  Preinspection c.  Inspection b. Cleaning d. Repair lNITIAL SETUP: Tools General  mechanic’s  tool  kit: automotive  (Appendix  E,  Item  1) Straightedge  (Appendix  E,  Item  15) Feeler  gauge  (Appendix  E,  Item  13) Cylinder  bore  gauge  (Appendix  E,  Item  14) Micrometer  (Appendix  E,  Item  16) Cylinder boring machine (Appendix  E,  Item  17) Cylinder honing unit (Appendix E, Item 18) Special Tools Camshaft bearing remover and installer (Appendix  E,  Item  12) Materials/Parts Six  protective  dust  caps  (Appendix  D,  Item  5) Lubricating oil OE/HDO (Appendix B, Item 13) Pipe sealing compound (Appendix B, Item 17) Sealing compound, anaerobic (Appendix B, Item  18) Sealing compound, high temperature (Appendix  B,  Item  21) Manual  References TM 9-2815-237-34P Equipment Condition Engine  disassembled  into  subassemblies (para.  2-15). General  Safety  Instructions l Compressed air for cleaning purposes will not exceed  30  psi  (207  kPa). l Protective clothing must be used with steam cleaning. l Wear  eyeshields  when  using  compressed  air. a.  Preinspection 1. Inspect camshaft bearings (2) for chips, cracks, or scoring. If any bearing (2) is chipped, cracked, or  scored,  remove  all  camshaft  bearings  (2)  (para.  2-16.d.3)  and  hot  tank  clean  cylinder  block  (1) (para.  2-16.b.1). 2. Measure inside diameter of all camshaft bearings (2). Number one through number four camshaft bearings must be 2.167-2.170 in. (55.041-55.118 mm) and number five camshaft bearing (rear) must  be  2.009-2.012-in.  (51.028-51.104  mm).  If  any  camshaft  bearings  (2)  do  not  meet  specifica- tions, replace all camshaft bearings (2) (para. 2-16.d.3) and hot tank clean cylinder block (1) (para.  2-16.b.1). 3. If all bearings (2) are to be reused, steam clean cylinder block (1) (para. 2-16.b.2). b. Cleaning 1.  Hot  tank  cleaning. a. Remove six protective dust caps (3) and all plugs (4) from cylinder block (1). b. Clean cylinder block (1) by submerging in tank of heated cleaning solution. c. Run rods with brushes through all oil passages and repeat step 1.b. 2-40