Contents: Petrol engines ⤓ Diesel ⤓
Petrol engines
Thermostat on gasoline engines
Checking the Thermostat
1. Valve protrusion
Removal and installation
1. Disconnect the battery from ground, remove the air filter (if necessary), drain the coolant to the level of the lower edge of the radiator hose.
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2. Disconnect the hoses, unscrew the bolts and remove the thermostat.
3. If necessary, test the thermostat in a container of water. The opening start temperature should be 88°C and the valve protrusion should be 8 mm.
4. Installation is carried out in reverse order. Clean the thermostat and replace the gasket, lubricating it with sealant. Tighten the bolts carefully, alternately loosening and tightening them. Warm up the engine, check the operation of the thermostat.
Diesel
Thermostat on diesel engines
1. From the radiator
The thermostat is mounted at the bottom of the cylinder block and is connected to the lower radiator hose. The thermostat is equipped with a bypass valve.
Removal and installation
1. Disconnect the battery from ground, drain the coolant to the level below the thermostat.
2. Disconnect the lower radiator hose from the thermostat pipe, remove the pipe and thermostat.
3. Installation is carried out in reverse order. Clean the surfaces and install a new gasket, applying sealant on both sides. Warm up the engine, check the operation of the thermostat.