Fig. 4.45. Exhaust system: 1 - main muffler; 2 - central exhaust pipe; 3 - catalytic converter; 4 - exhaust inlet pipe; 5 - gasket; 6 - rubber suspension; 7 - rubber suspension; 8 - gasket; 9 - bracket; 10 - gasket; 11 - bracket
- The exhaust system consists of three main parts. The exhaust system ensures the removal of exhaust gases into the atmosphere, a decrease in the concentration of pollutants, and a reduction in engine noise to the required level with minimal power loss. In order for the exhaust system to perform its functions, it must be in good condition. The condition of the exhaust system also affects engine power and fuel consumption.
- The exhaust system consists of an exhaust manifold, an exhaust pipe, a catalytic converter and mufflers.
- Exhaust pipes provide connections between the elements of the exhaust system.
- Mufflers are designed to smooth out pulsations in the exhaust gas flow and reduce noise levels.
- The exhaust system is attached to the bottom of the car using elastic elements to reduce vibration from the passage of exhaust gases.
- Exhaust leaks in the exhaust system are usually caused by damaged gaskets and leaky pipe connections or damage to the mufflers from impacts while driving. Exhaust leaks result in increased noise and vibration from the contact of exhaust system components with the vehicle body.
- Before removing or disassembling exhaust system components, soak the bolts and nuts securing the exhaust system components with a fluid that loosens the connections. Wait 5 minutes for the fluid to penetrate the threaded connection.
- After working on the exhaust system, move the exhaust system of the car to the sides, check that it does not touch the car body. Otherwise, replace the rubber hangers of the exhaust system.
Warning: Make sure the exhaust system is sufficiently cool before removing or inspecting components.
Note: If the exhaust system is installed at an angle, it will be noticeable by dull and rattling sounds. In addition, internal stresses may cause cracks to appear. Minor leaks in the pipe connections of the new exhaust system can be eliminated with sealing putty.