1 - self-locking nut, 25 Nm
2 - exhaust manifold
The engine has 90 hp (JN) with front
drive the lambda probe into the exhaust manifold.
3 - self-locking nut, 30 Nm
5-cylinder engine: 35 Nm
4 - gasket
5 - exhaust pipe
Depending on the model, a double pipeline may be installed
6 - holder on the transmission box
7 - front muffler or catalytic converter
The lambda probe is installed on the catalytic converter, except for 90 hp models with the designation JN.
8 - bolt, 40 Nm
9 - spring
10 - Central muffler/rear muffler
With front-wheel drive, it is installed as one piece. The mufflers are supplied separately as spare parts and are connected with a clamping sleeve. In the all-wheel drive version, they are connected with a flange
11 - muffler suspension ring
Tension 7 mm -arrow-.
12 - place of separation
For repair of the exhaust system. Marked by 3 dents around the circumference of the connecting pipe.
13 - clamping sleeve
Minimum insertion depth of pipe ends a=42.5 mm.
14 - muffler suspension ring
Tension 12 mm -arrow-.
The exhaust system consists of a muffler intake pipe, front, middle and rear mufflers. Instead of the front muffler, a catalytic converter is installed in cars with a catalytic converter. The lambda probe, which is necessary for adjusting the process of optimal gas afterburning in the catalytic converter, is (oxygen sensor) screwed into the front of the catalytic converter housing.
The intake pipe is connected with bolts to the exhaust manifold mounted on the cylinder cover. All system elements are connected to each other with bolts and can be removed independently of other system elements. Self-locking nuts and gaskets must be replaced with new ones after disassembly. The retaining rings and rubber cushions are checked for mechanical damage and the presence of pores and replaced if necessary, moms When installing a new exhaust system, it is recommended to replace all system fastening elements.
The figure shows the exhaust system of a diesel engine and a 4-cylinder engine with fuel injection.
[The article was copied from the website: audimanual.ru]