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TM-9-2320-280-10 M977 Series 8 x 8 Heavy Expanded Mobility Tactical Trucks (HEMTT) Manual | Next
Transmission Data (3L80) |
TM 9-2320-280-10
Table 1-4. Engine Data (6.2 L)
Type ..................................................................................
6.2 liter diesel, naturally-aspirated, liquid-cooled
Cylinders ..............................................................................................................................................
8(V)
Brake horsepower............................................................................................
150 horsepower @ 3600 rpm
Idle speed (engine rpm) ........................................................................................................
650 + 25 rpm
Operating speed (engine rpm) .............................................................................................
1500-2300 rpm
Oil pressure at idle...............................................................................................................
15 psi (103 kPa)
Normal operating oil pressure ................................................................................
40-50 psi (276-345 kPa)
Table 1-5. Engine Data (6.5 L)
Type ...................................................................................
6.5 liter diesel, naturally-aspirated, liquid-cooled
Cylinders ................................................................................................................................................
8(V)
Brake horsepower............................................................................................
160 horsepower @ 3400 rpm
Idle speed (engine rpm) ............................................................................................................
725 + 25 rpm
Operating speed (engine rpm) ..............................................................................................
1500-2300 rpm
Oil pressure at idle..................................................................................................................
10 psi (69 kPa)
Normal operating oil pressure ................................................................................
40-50 psi (276-345 kPa)
Table 1-6. Cooling System Data
Surge tank cap pressure ....................................................................................................
15 psi (103 kPa)
Thermostat:
Starts to open .......................................................................................................................
190°F (88°C)
Fully open...........................................................................................................................
212°F (100°C)
Radiator...............................................................................................................................
Downflow type
Fan......................................................................................................................
10 blade, 19 inch (48 cm)
Normal operating coolant temperature ....................................................................
190°-230°F (88°-110°C)
1-25
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