6.15. Check of frequency of rotation of idling

Check conditions

Headlights, the electric fan of a radiator and all electric consumers have to be switched off, and the transmission has to be installed in neutral situation.

1. The engine has to be heated-up up to the temperature of cooling liquid of 80-95 °C.
2. Launch the engine and leave it to work at the frequency of rotation of a bent shaft idling.
3. Check installation of a corner of an advancing of ignition and, if necessary, adjust it.
4. Make a trip on the car within 5 min. at a speed of 48 km/h or no more than on 5 with increase the frequency of rotation of a bent shaft to 2000-3000min-1.
5. Then let's the engine work idling within 2 min.
6. Determine idling rotation frequency by a tachometer.

Frequency of rotation of idling of the engine of 1,3 l with the mechanical transmission: 850±100 min.-1 at coal of an advancing of ignition 5± 5 °