TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 2 Download
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TM 9-2320-387-24-2 15-4. LEFT CYLINDER HEAD REPAIR This task covers: a. Removal b. Repair c. Installation INITIAL SETUP: Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Materials/Parts Gasket (Appendix G, Item 74) Antiseize compound (Appendix C, Item 16) Pipe sealing compound (Appendix C, Item 62) Personnel Required One mechanic One assistant Manual References TM S-2320-387-24P TM 9-2815-237-34 Equipment Condition l Fuel drain-back tube removed (pax-a. 3-38). l Alternator/power steering mounting bracket removed (para. 4-3). Equipment Condition (Cont’d) l Left exhaust manifold removed (para. 3-57). l I_.& intake manifold removed (para. 15-16). l Water crossover removed (para. 3-79). l Rocker arm shafts and pushrods removed (para. 15-8). l Fuel injection return hoses removed (para. 3-37). l Fuel injection nozzles removed (para. 16-3). l Glow plugs removed (para. 3-391. l Oil pressure sending unit removed (para. 4-29). General Safety Instructions Cylinder head must be supported during removal and installation. Maintenance Level Direct support WARNING Cylinder head must be supported during removal and installation. Failure to support cylinder head may cause injury to personnel or damage to equipment. 1 a. Removal ] 1. Disconnect harness lead 33B (5) from engine temperature sending unit (4). CAUTION Cover or plug all hoses, connections, and openings immediately after disconnection to prevent contamination. Remove all covers or plugs prior to connection. 2. Remove seventeen capscrews (2) from cylinder head (11 and cylinder block (6). 3. Remove cylinder head (1) and gasket (3) from cylinder block (6). Discard gasket (3). 4. For cylinder head (1) and valve repair procedures, notify general support (TM g-2815-237-34). (1 1. Extract broken portion of bolt (8) from cylinder head (1). NOTE If threaded hole cannot be repaired, the left cylinder head can be interchanged with the right cylinder head. 2. If threads are unserviceable, use threaded inserts to repair threaded hole (7) in cylinder head (1). 15-8