| Rotation speed, rpm | Duration, min |
| 820—900 | 2 |
| 1000 | 3 |
| 1500 | 4 |
| 2000 | 5 |
After installing on the stand and starting the engine, check: oil pressure; setting the ignition timing; idle speed; whether there is any leakage of coolant or fuel between mating parts, from pipe connections and through gaskets; is there any oil leakage from under the oil filter sealing ring?; are there any extraneous knocks?.
If any extraneous knocks or malfunctions are detected, stop the engine, eliminate them, and then continue testing.
If oil leaks through the gasket between the cover and the cylinder head or through the gaskets between the engine oil pan, cylinder block and covers, tighten the mounting bolts to the recommended torque. If the oil leak does not stop, check whether the gaskets are installed correctly and replace them if necessary.
(The information is published on the website: vazbook.ru)
Since the engine has not yet been run in after repair and the friction of the working surfaces of the new parts provides significant resistance to rotation, a certain period of running in is necessary. This applies in particular to those engines on which the pistons, connecting rod and main bearings have been replaced, the crankshaft journals have been reground, and the cylinders have been honed.
Therefore, during the running-in of a repaired engine, its operation should not be brought to maximum mode and the running-in of the engine should continue on the vehicle, observing the driving speeds that are recommended for a new vehicle.