The engine complies with Euro III emission standards. The connection between the exhaust manifold and the block head is sealed with a two-layer metal gasket. The exhaust manifold of the engine is steel. The catalytic converter is combined with the exhaust manifold into a single non-separable unit - the catalytic manifold (collector). This reduces the catalyst warm-up time to operating temperature and increases its efficiency. Two oxygen concentration sensors are installed in the catalytic manifold - before and after the converter. The connection between the catalytic manifold and the exhaust pipe is sealed with heat-resistant (metal-asbestos) gasket. The exhaust pipe flange is connected to the exhaust manifold flange through a heat-resistant (metal-asbestos) gasket. To reduce the transmission of vibrations to the body and reduce the load on the system during vibrations of the power unit, the connection of the exhaust pipe with an additional silencer is made through a metal expansion joint (see fig.).
The connection of the main and additional mufflers is rigid, with a steel sealing ring. A heat-protective metal screen is attached to the body above the additional muffler.
The exhaust system is suspended from the body brackets on four rubber rings - pillows. The suspension pads of the additional silencer and the front suspension of the main silencer are interchangeable. The main muffler suspension cushion is reinforced.
Exhaust system:
1 - gasket;
2 - catalytic converter;
3 - sealing gasket;
4 - metal compensator;
5 - additional muffler;
7 - catalytic manifold bracket;
8 - receiving pipe;
6, 10 - silencer suspension cushions;
9 - metal sealing ring;
11 - main muffler;
12 - clamp brackets.