Exhaust system — general description (Nissan Murano Z50)

The exhaust system serves to remove the flow of hot gases from the engine. For the system to function efficiently, the pipe diameter, bend radius, manifold design, etc. are important. When repairing an exhaust system, it is necessary to use replacement parts that are completely identical to the old ones. Typically, the exhaust system is mounted in such a way as to be isolated from the vehicle body. For this purpose, rubber suspensions, washers and bushings are used. They reduce vibration and noise. They must be placed very carefully. When repairing the exhaust system, it is necessary to use rust removers to make it easier to loosen the nuts.

Caution: You can work on the exhaust system when all parts have cooled down. The catalytic converter temperature can reach 300°C. Always wear protective goggles and gloves. Make sure the vehicle is securely supported with supports.

The exhaust manifold is attached to the cylinder head. The exhaust system's receiving pipe is attached to the manifold. Next comes the catalytic converter, the central pipe of the exhaust system and the main muffler. All elements of the exhaust system are connected using bolts. All parts are available for sale separately for repairs.

Elements of the exhaust system

Service life of the exhaust tract

The rate of exhaust gas corrosion decreases as exhaust gas temperature decreases. From this point of view, short-distance trips with stops and engine cooling are less harmful than long-term driving with a warm engine and constantly hot exhaust gases. However, when cooling, condensation forms in the mufflers, which, when mixed with combustion products, forms aggressive acids that corrode the metal of the exhaust tract from the inside.

(Data taken from this portal: www.NISSANBOOK.ru)

Regardless of the driving mode, moisture entering from the outside causes corrosion. Hitting rocks or driving over uneven surfaces also shortens the life of the exhaust system, as does vibration caused by defective suspension rubber or poor engine mounting.