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Removing and installing exhaust manifold
NOTE Cars with engines BLY and BVZ exhaust emissions standard EU 2. On these vehicles are not installed some components relevant to the exhaust system, such as exhaust gas recirculation, 2 lambda probe and lambda probe 2 after catalytic converter. This should be considered during assembly work. |
NOTE The exhaust manifold is removed upward. |
Withdrawal Remove the soundproofing screen.
NOTE On vehicles with Engine code BLX, BVX Bracket exhaust system removed together with cable duct of oxygen sensors for the catalyst. |
Remove the front exhaust pipe nuts to the exhaust manifold (Fig. 2.90).
NOTE Releasable pipe receiving elements can not be bent more than 10 ?�. There is a danger of damage. |
Remove, if present, the engine cover.
Remove the connectors 1 and 2 lambda probes from the holder and disconnect them (Fig. 2.238).
NOTE On the drive letter designation BVY with only one connector. |
Engines BLR, BLX, and BVX Remove the wire basket. Continuation of the assembly operations for all vehicles
Remove the retaining bolt. Remove the bolts on the intake manifold and remove the connecting pipe. Release wiring harness lambda probes 1.
NOTE Water hoses from the EGR valve leave connected. |
Remove the protective shield over the exhaust manifold, which unscrew bolts 1 and remove protective screen (Fig. 2.243).
Install the exhaust manifold Install in reverse order, with the following should be considered. All clamps for the cable ties should be installed in the original places. Replace gaskets and self-locking nuts. Coat the dowel pins of cylinder head and exhaust manifold heat-resistant paste. Lubricate the threads of lambda probes thermostable paste; the paste must not get into slots on the probe body.
Tightening torques Exhaust manifold to cylinder head 25 Nm The shield on the exhaust manifold: 10 Nm. Lambda Sensor: 55 N ?� m. Bracket to the sub-frame 25 Nm. Reception pipe to the exhaust manifold 25 Nm. Connection tube EGR to the EGR valve 10 Nm. Connection tube EGR to exhaust manifold 15 Nm.
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