Speed, min-1 | Time, min |
750–800 | 2 |
1000 | 3 |
1500 | 4 |
2000 | 5 |
Having installed the engine on the stand, start it up and check:
- no leakage of coolant or fuel between mating parts and in pipeline connections;
- oil pressure and no oil leakage through the gaskets;
- setting the ignition moment;
- idle speed;
- tightness of the connections of the power supply system in the engine compartment.
If extraneous knocks or malfunctions are found, stop the engine, eliminate them, and then continue testing.
If oil leaks through the gasket between the oil pan and the cylinder block, tighten the mounting bolts to the recommended torque. If the leak continues, check the gasket and replace if necessary.
If oil leaks through the gasket between the cylinder head cover and the block head, check the gasket and rubber plugs on the end surfaces of the cylinder head. Replace gasket and plugs if necessary.
After repairing the engine, it is necessary to observe a certain mode of operation for the period of running-in of the working surfaces of new parts. This is especially true for those engines on which pistons, connecting rod and main bearing shells have been replaced, crankshaft journals have been ground, and cylinders have been honed.
Therefore, during the break-in of a repaired engine on a car, do not subject it to maximum loads. The engine break-in should be carried out at the speeds and loads recommended for the break-in period of the vehicle.