Should not be given "full throttle '', in the presence of an automatic transmission, avoid driving with "full throttle" and in mode "kickdown". The highest speed should be 4200 rpm.
In the mileage range from 1000 to 1500 km, the engine can be gradually accelerated to maximum speed, respectively, to maximum speed.
Attention: Everything that has been said about the new engine also applies to the refurbished power unit, which is even more sensitive to improper operation.
When the engine is warm, the following shifting instructions should be followed (when the engine is cold, the gears should be shifted earlier).
Engine life
The following mileage is a guide value. Depending on driving conditions and care, both upper and lower limits can be reached.
Four-cylinder engine: 100,000-150,000 km.
Other engines: 120,000-180,000 km.
The driver himself must decide whether the moment of critical wear is already approaching, or whether it is possible to continue driving until a mileage of 150,000 km or more is reached. The temperature of the engine oil is of decisive importance. If the coolant temperature indicator indicates that operating temperature has been reached relatively quickly, then the engine oil will fully acquire its lubricating properties after about 10 minutes of driving.
After driving short distances for a week, it is not recommended to fully depress the accelerator pedal. During a long stop at a traffic light at idle, a plaque forms in the combustion chambers and valves, which, when the engine is fully warmed up and fast (but not too much) driving slowly burns out. For vehicles equipped with a tachometer, this is 4000-5000 rpm.
Rated speed
An internal combustion engine operates at maximum power at a certain speed - the so-called nominal speed. Increasing RPM above this value will not increase power. However, under certain conditions, by increasing the engine speed and speeding up the rotation of the wheels, it is possible to achieve a higher speed. Faster rotation in any case makes it easier to shift to the next gear.
RPM limit
The absolute speed limit is close to 6700 rpm. Even before this value is reached, the valve springs begin to vibrate so strongly that full opening and closing of the valves is no longer ensured. Valve springs can break, causing the corresponding valve to hit the piston, causing serious damage.
On most engines, a rev limiter is installed, which at a certain speed stops their further increase. The device functions differently depending on the type of engine.
On injection engines without a catalyst (early models), a centrifugal device on the distributor rotor interrupts the ignition pulses to the engine so that they do not reach the spark plugs.
On other catalytic-injected engines, the engine speed is limited by a control device that, using the fuel pump relay, switches off the electric fuel pump.
On engines with the Mono-Motronic system, the fuel supply is shut off at the intake valve.
The engine speed limit does not apply to carbureted engines with catalytic converters.
If, despite interruptions in sparking, you want to accelerate the engine to very high speeds, then you will not have any interference, except for the installed engine protection.
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