TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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TM 9-2320-280-34 3-26. ENGINE PREPARATION (6.2 L AND 6.5 L) NOTE Perform steps 61 and 62 for 6.2 L only. 61. Loosen nut (2) and remove RPM sensor (3) from oil pump drive (1). 62. Remove fitting (4) from clutch fan adapter (5). NOTE Perform step 63 for 6.5L only: 63. Remove fitting (4) from quick disconnect (6). NOTE Have drainage container ready to catch fluid. 64. Remove two plugs (7) and drain coolant from engine (8). 3-188