Diesel Data: Automotive Repair

Thermostat: Service and Repair

1. Drain engine coolant into a suitable container.
2. Disconnect upper radiator hose.

Fig. 65 Thermostat replacement:





3. Remove water outlet fitting and the thermostat.

Fig. 66 Thermostat installation:





4. Reverse procedure to install, ensuring jiggle valve on thermostat is aligned with mark on thermostat housing.