You will need: keys «on 10», «at 13», end head «at 13», pliers, ruler, lamellar probe.
1. Disconnect the wire from the terminal «minus» battery.
2. Remove the decorative engine cover (see «Removal and installation of a decorative casing of the engine»).
3. Disconnect the exhaust pipe of the additional muffler from the collector, for which unscrew the nuts securing the exhaust pipe flange to the collector flange, disconnect the suspension cushions from the muffler brackets and remove the exhaust pipe flange from the collector flange studs. Remove additional muffler (see «Replacing the additional muffler»).
4. Squeeze out the latches..
5.... and disconnect from the engine harness the wiring harness blocks for the control and diagnostic oxygen concentration sensors.
6. Press the antennae of the holders..
7.... and disconnect from the heat-insulating shield of the steering mechanism the holders of the wiring harnesses for the control and diagnostic oxygen concentration sensors.
8. Unscrew socket «at 13» bolts for fastening the collector to the bracket.
9. Key «on 10» unscrew the three nuts securing the thermal insulation shield of the steering mechanism to the motor shield (two nuts are located under the steering gear) …
10.... and remove the shield.
11. Unscrew with a key «at 13» two nuts securing the water pump inlet pipe bracket..
12.... and remove the bracket.
13. Unscrew with a key «at 13» eight nuts securing the manifold to the cylinder head..
14.... and remove the collector..
15.... and its gasket.
16. Install a new gasket and all removed parts in the reverse order of removal.
17. Check the flatness of the collector flange surface. To do this, place the ruler with an edge on the flange surface and measure the gap between the flange plane and the ruler with a feeler gauge. Grind the flange surface or replace the collector if the gap exceeds 0.1 mm.
Note. In order to avoid sticking of the gasket and to increase its tightness, we recommend lubricating the gasket on both sides with a thin layer of graphite grease before installation.
Note. Lubricate the exhaust manifold mounting studs with graphite grease.