On the collector 4 is installed the main (manager) oxygen concentration sensor 3, and on the downpipe 8 - diagnostic oxygen concentration sensor 7.
A metal-reinforced sealing gasket 2 is installed between the cylinder head and the collector flange.
The exhaust pipe is connected at one end to the flange of the collector, and at the other end to the inlet pipe of the additional muffler. Additional and main mufflers are connected by pipe 13.
The flange connection of the collector and the downpipe is sealed with a metal-reinforced gasket 5.
Similar gasket 9 (just a different form) the flange connection of the exhaust pipe and the additional muffler is sealed.
The remaining connections of the system are welded, when replacing an additional or main silencer, the connecting pipe 13 is cut and then the new elements are fixed with clamps, each of which is attached by welding at one point to the pipes of the main and additional silencers.
In order to reduce the transmission of vibrations from the power unit to the exhaust system and the body, a corrugated vibration-compensating bellows 6 in a metal braid is mounted in the downpipe.
The elements of the system are suspended from the body on four rubber cushions. Pillows A of the suspension of the additional silencer and B of the suspension of the main silencer differ in shape and are not interchangeable.
To protect the radiator of the cooling system, the base of the body and the fuel tank from heating by the elements of the system, steel thermal screens are installed on the collector, the exhaust pipe of the additional muffler and the main muffler.
The exhaust system does not require special maintenance. It is enough to periodically check the reliability of the tightening of the threaded connections and the integrity of the suspension pads.
USEFUL ADVICE: Periodically check the exhaust system. If there is an increased noise level from the exhaust system, check its tightness. To do this, start the engine and inspect the entire system. Run your hand over potential leaks without touching the components, and you will immediately feel the release of gases. If necessary, replace rusted and burnt parts.
If it is impossible to replace the defective unit with a new one, you can temporarily restore its performance by applying a metal patch to the damaged area and securing it with clamps or wire. It is recommended to place a sheet of asbestos under the patch. In addition, auto parts stores sell special kits for rebuilding exhaust system components, with which you can temporarily repair damage to the system in order to get to a car service or garage.
WARNINGS: Allow the exhaust system to cool before repairing as the exhaust system becomes very hot when the engine is running. Exhaust gases are poisonous, their poisoning occurs imperceptibly, so be sure to open the gate before starting the engine in the garage!