Thermostat

THERMOSTAT

Remove

1. Remove 2 bolts securing coolant rail to cylinder block, release rail from thermostat cover.
2. Remove bolt securing thermostat housing and dipstick tube to cylinder block.
3. Withdraw thermostat housing from coolant pump.

4. Remove and discard ’O’ rings from thermostat housing and cover.
5. Remove 3 bolts and remove cover from thermostat housing.
6. Withdraw thermostat from housing.
7. Remove and discard seal from thermostat.

Inspection

1. Test thermostat using thermostat test equipment, renew thermostat if necessary.
2. Thermostat open = 88° C Starts to open = 85° to 91° C Fully open = 100° C

Refit

1. Clean thermostat housing, cover and sealing faces.
2. Lubricate new ’O’ rings with silicone grease and fit to thermostat housing and cover.
3. Fit a new seal to thermostat.
4. Align and fit thermostat to shoulder in thermostat housing.
5. Fit cover to thermostat housing, fit and tighten bolts to 8 Nm.

CAUTION: Torque figure must not be exceeded.

6. Fit thermostat housing to coolant pump, align dipstick tube bracket, fit and tighten bolt to 10 Nm.
7. Connect coolant rail to thermostat cover.
8. Align coolant rail to cylinder block, fit and tighten bolts to 25 Nm.