TM-9-2815-237-34 HMMWV Engine Direct Support & General Support Maintenance Manual Download
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b. Cleaning TM 9-2815-237-34 2-22. VALVE TRAIN REPAIR This task covers: a. Disassembly c. Inspection b. Cleaning d. Assembly INITIAL SETUP Tools Equipment Condition General mechanic’s tool kit: Engine disassembled into subassemblies autmotive (Appendix E, Item 1) (para. 2-15). Materials/Parts Four retainers (Appendix D, Item 36) Manual References TM 9-2815-237-34P a. Disassembly NOTE Tag rocker arms for assembly. 1. Remove four retainers (2) and rocker arms (3) from rocker shaft (1). Discard retainers (2). 2. Repeat step 1 for remaining rocker arm and shaft assemblies. Clean all components in accordance with para. 2-9. c. Inspection NOTE For general inspection instructions, refer to para. 2-10. 1. Inspect rocker shaft (1) for damage. Replace if damaged. 2. Inspect rocker arms (3) for damage. Replace if damaged. 3. Inspect pushrods (4) for blocked oil passages and damage. Replace if damaged or oil passages are blocked. 4. Inspect lifters (5) for damage. Replace if damaged. 5. Inspect roller (6) on lifter (5) for scoring and binding. Replace lifter (5) if scored or binding. d. Assembly NOTE For general assembly instructions, refer to para. 2-12. 1. Install four rocker arms (3) on rocker shaft (1) with four retainers (2). 2. Repeat step 1 for remaining rocker arm and shaft assemblies. 2-72