CO-10
COOLING SYSTEM - Thermostat
THERMOSTAT
REMOVAL OF THERMOSTAT
1. DRAIN ENGINE COOLANT (See page CO-5)
2. REMOVE WATER INLET
Remove the three bolts and water inlet from the water inlet
housing.
3. REMOVE THERMOSTAT
INSPECTION OF THERMOSTAT
INSPECT THERMOSTAT
HINT: The thermostat is numbered with the valve open-
ing temperature.
(a) Immerse the thermostat in water and gradually heat
the water.
(b) Check the valve opening temperature.
Valve opening temperature: 7 4 - 7 8 X (165-172°F)
If the valve opening temperature is not as specified, replace
the thermostat.
(c) Check the valve lift.
Valve lift: 10 mm (0.39 in.) or more at 90°C (194°F)
If the valve lift is not as specified, replace the thermostat.
(d) Check that the valve spring is tight when the thermo-
stat is fully closed.
If necessary, replace the thermostat.
CO0948
C00941
CO0929
Valve Lift
CO0949
Summary of Contents for 1HD-T
Page 1: ......
Page 53: ...EM 42 ENGINE MECHANICAL Timing Gears TIMING GEARS COMPONENTS ...
Page 65: ...EM 54 ENGINE MECHANICAL Cylinder Head CYLINDER HEAD COMPONENTS ...
Page 95: ...EM 84 ENGINE MECHANICAL Cylinder Block CYLINDER BLOCK COMPONENTS ...
Page 133: ...TURBOCHARGER SYSTEM Turbocharger TC 9 COMPONENTS ...
Page 145: ...FU 6 FUEL SYSTEM Fuel Heater System FUEL HEATER SYSTEM SYSTEM CIRCUIT ...
Page 166: ...FUEL SYSTEM Injection Pump FU 27 INJECTION PUMP REMOVAL OF INJECTION PUMP ...
Page 169: ...FU 30 FUEL SYSTEM Injection Pump COMPONENTS ...
Page 170: ...FUEL SYSTEM Injection Pump FU 31 COMPONENTS Cont d ...
Page 171: ...FU 32 FUEL SYSTEM Injection Pump COMPONENTS Cont d ...
Page 251: ...LU 4 LUBRICATION SYSTEM Troubleshooting TROUBLESHOOTING ...
Page 255: ...LU 8 LUBRICATION SYSTEM Oil Pump OIL PUMP COMPONENT ...
Page 272: ...ST 4 STARTING SYSTEM Pre Heating System Super Glow Type TIMER CHARACTERISTIC DIAGRAM Cont d ...
Page 282: ...ST 14 STARTING SYSTEM Starting System Circuit STARTING SYSTEM CIRCUIT Cont d ...
Page 340: ...B 1 STANDARD BOLT TORQUE SPECIFICATIONS Page STANDARD BOLT TORQUE SPECIFICATIONS B 2 ...
Page 343: ...C 1 SSTAND SSM Page SST SPECIAL SERVICE TOOLS C 2 SSM SPECIAL SERVICE MATERIALS C 6 ...