5.2. Check of the thermostat of the oil pump


1. Remove the thermostat from an arm of an oil filter.

2. Measure distance "And" between the basic surface of the valve (1) and an end face of a carving part of the case of the thermostat at a temperature of air and after heating to 100 °C in an oil bathtub which respectively has to make 34,5 and 40 mm. 
3. To scroll a bent shaft within 10 seconds.