TM-9-2815-237-34 HMMWV Engine Direct Support & General Support Maintenance Manual Download
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TM 9-2815-237-34 2-21. CYLINDER HEAD AND VALVE REPAIR (Cont’d) NOTE Valves must be installed in the same location they were removed from. As each valve is removed, place on numbered board or stand. 8. Remove exhaust valve (15) from cylinder head (1). 9. Repeat steps 5 through 8 for remaining exhaust valves. NOTE Precombustion chambers must be installed in the same location they were removed from. Mark precombustion chambers for assembly. 10. Remove four precombustion chambers (18) from cylinder head (1). 11. Repeat steps 1 through 10 for opposite cylinder head. 12. Remove engine temperature sending unit (19) from left cylinder head (1) 13. Remove cold start advance switch (20) from right cylinder head (1). 14. Remove two capscrews (21), water jacket cover (22), and water jacket cover gasket (23) from right cylinder head (1). Discard gasket (23). 2-63