Contents: Description ↳ Precautionary measures ↳
Description
1. On turbocharged engines, turbocharging increases engine output by raising the pressure in the intake manifold above atmospheric pressure. Thus, the supply of air to the cylinders does not occur spontaneously, but under pressure. Accordingly, the fuel supply from the fuel pump to the engine increases.
2. The energy for the turbocharger is provided by the exhaust gases. The gases pass through a specially shaped housing (turbine) and rotate the turbine wheel. The turbine wheel turns a shaft, at the other end of which is a wheel known as the compressor wheel. The compressor wheel rotates rapidly within its housing, compressing the air as it travels to the intake manifold.
3. The increase in pressure in the intake manifold is limited by the exhaust valve, which diverts the exhaust gas away from the turbine if the pressure is high.
4. The turbine shaft is lubricated by a pressure oil supply pipe coming from the engine oil pan. Thus, the shaft "floats" on an oil cushion. The drain pipe returns fuel to the sump.
Precautionary measures
5. The turbocharger operates at extremely high speeds and temperatures. Certain precautions must be taken to avoid injury and premature failure.
6. Do not operate turbocharger if any part or hose is disconnected. Foreign objects that get into the rotating turbine blades can cause serious damage.
7. Do not give full throttle immediately after starting the engine, especially if it is not warmed up. Give the oil a few seconds to begin circulating.
8. Always allow the engine to return to idle speed before turning it off - do not turn it off immediately, as this will not give the throttle control time to react and will leave the turbo without lubrication.
9. Let the engine idle for a few minutes before turning it off after running at high speed.
10. Observe recommended oil and oil filter change intervals and use oil of the specified quality. Neglecting to change the oil or using inferior quality oil can lead to deposits forming on the turbocharger shaft and subsequent failure.