Oil is used to lubricate the engine; indicated in the lubrication card.

Check the oil level in the crankcase using the level indicator, which has three marks:

"Share", "Full" and a label in the form of a rectangle above the label "Full" (Fig. 1).

The "Full" mark shows the normal oil level in the engine crankcase, warmed up to operating temperature, 2-3 minutes after stopping.

Check marks on the ZIL-131 oil gauge

The oil level in the crankcase should be checked before each departure of the car, and during long trips at each inspection of the car on the way.

To check the oil level, stop the engine, wait 2-3 minutes until the oil drains, remove and wipe the oil level indicator, insert it all the way, remove it again and determine the level by the marks.

If the oil is below the “share” mark, the vehicle must not be operated and it is necessary to add oil to the “Full” mark.

When the car is parked for a long time, a certain amount of oil additionally flows from the oil filter and channels in the cylinder block into the crankcase, so the oil level before starting the engine exceeds the “Full” mark and in a fully fueled engine is set within the rectangular mark on the indicator.</p >

When checking the oil level before starting the engine after a long stop, the normal level should be within the rectangular mark.

Exceeding the normal level corresponding to the “Full” mark on a hot engine or a rectangular mark on a cold one is not allowed.

The engine oil must be changed at the intervals specified in the lubrication chart.

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During operation, it may be necessary to adjust the full opening of the carburetor throttle valve and the position of the pedal

- Cause of malfunction Elimination method The clutch does not disengage completely (the clutch “drives”):