Preparatory work
(Sign *: after removing the thermostat cover)
Drain the coolant.
Remove the lower radiator hose.
Remove intake manifold and adapter (*), see Ch. Mechanical part of the engine.
Installation
Water pipe installation
Apply Three Bond 1207C in a continuous bead (KR51000150) on the water pipe as shown in the figure and install the thermostat housing.
Installing the water pipe and thermostat housing assembly
Install water tube (with attached thermostat housing) on the engine as follows.
(1) Tighten bolt A with a force of 2-5 Nm (0.2-0.5 kg m).
(2) Tighten the bolts in the order C, A, B with a force of 16-21 Nm (1.6-2.1 kg m).
Installing a thermostat
Install the thermostat with the bypass valve up.
Water inlet installation
Apply Three Bond 1207C in a continuous bead (KR51000150) as it shown on the picture.
Install without shifting the thermostat flange.
Examination
Thermostat check
Tie a thread to the thermostat valve. Immerse the thermostat in a container of water. Start heating the water.
The valve opening temperature is the temperature at which the valve opens and falls off the string.
Keep heating the water. Check valve lift at full open.
- Standard valve opening temperature: 82±1.5°С
Valve lift at full opening: above 8 mm/95°C (for regions with cold climates)
- Standard valve closing temperature: 77°C