2-5
Closed thermostat
The thermostat is closed if the temperature of the cooling liquid drops below 75° C. The water pump
1
pumps the cooling liquid
through the cylinder and cylinder heads
2
and the thermostat
2
.
Open thermostat
The thermostat
3
opens at 75° C. The water pump
1
pumps the cooling liquid through the cylinder and cylinder heads
2
, the
aluminum cooler
4
and the thermostat. The pressure in the cooling system (max. 1.4 bar) is regulated by a valve in the radiator
cap
5
. The cooling liquid level in the compensating tank
6
must be between the MIN and MAX marks when the engine is cold.
The fan
7
switches on at 102° C.
Cooling system
1
1
2
2
3
4
5
6
7
2
2
3
