Hitachi 4HK1 Workshop Manual page 38

1B-14 Mechanical (4HK1)
Caution：
・ Do not forget to remove the bolts indicated by
the arrow in the diagram.
4. Exhaust manifold removal
1. Remove the exhaust manifold from the cylinder head
assembly.
1. Distance tube
2. Washer
3. Exhaust manifold
2. Remove the gasket from the cylinder head assembly.
5. Thermostat removal
1. Remove the fan guide bracket from the water outlet
pipe.
2. Remove the water outlet pipe from the cylinder head
assembly.
3. Remove the thermostat from the cylinder head
assembly.
4. Remove the gasket from the thermostat.
6. Overheat switch removal
1. Remove the overheat switch from the cylinder head
assembly.
7. Engine coolant temperature sensor removal
1. Remove the engine coolant temperature sensor from
the cylinder head assembly.