Elements of the exhaust system are connected by threaded connections or clamps.
On vehicles with diesel engines, an unregulated catalytic oxidizing converter is used to reduce the toxicity of exhaust gases.
Pic. 5.3–1. Elements of the control system for increasing the pressure of the air entering the engine: 1 - to the breather on the air filter housing; 2 – a vacuum hose to the vacuum reservoir or the vacuum pump; 3 - vacuum hose from the high pressure solenoid valve; 4 - vacuum brake booster; 5 - vacuum reservoir; 6 - one-way valve; 7 – vacuum pump; 8 - to the intake manifold valve switch N239; 9 - a vacuum hose from the N18 valve to the mechanical valve of the exhaust gas recirculation system; 10 - solenoid valve for pressure increase control N75; 11 - EGR valve N18
Reducing the content of nitrogen oxides in the exhaust gases of a diesel engine is achieved by installing an exhaust gas recirculation system on the car (EGR). EGR valve (pic. 5.3–1) recirculation system is installed in the knee of the exhaust system and is controlled by a vacuum regulator. Through the EGR valve on a warm engine, part of the exhaust gases is directed to the combustion chambers of the engine, as a result of which the temperature decreases and the content of nitrogen oxides in the exhaust gases decreases.
Tightening torques, Nm
Turbocharger to intermediate element | 22 |
Oil line to intake manifold | 22 |
Exhaust manifold elbow to turbocharger | 22 |
Exhaust pipe to turbocharger | 25 |
Receiving exhaust pipe with catalytic converter to the intermediate element | 25 |
Heat shield for turbocharger | 10 |
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