Removing
Remove the exhaust manifold on a cold engine in the following order:
- turn off the ignition and disconnect the wire «masses» from the storage battery;
- release the oxygen sensor wires from the clamps. If a new exhaust manifold is being installed, remove the oxygen sensor.
Pic. 3.8. Exhaust manifold heat shield mounting bolts
- remove the bolts (pic. 3.8) and remove the exhaust manifold heat shield;
- apply an agent to the exhaust manifold fastening nuts to facilitate their unscrewing;
- disconnect the intake exhaust pipe from the exhaust manifold;
Pic. 3.9. The location of the nut and bolt of the exhaust manifold support near the front engine mount
- remove nuts and bolts (pic. 3.9) and remove the exhaust manifold support. Some models have two exhaust manifold supports;
Pic. 3.10. An arrangement of nuts of fastening of a final collector to a head of the block of cylinders
- remove the nuts (pic. 3.10) and remove the exhaust manifold and gasket.
Installation
Install in the following order:
- use a scraper to remove the remnants of the old gasket and soot deposits from the mating surfaces of the exhaust manifold and cylinder head;
- install a new exhaust manifold gasket on the cylinder head studs;
- Install the exhaust manifold and secure with nuts. Tighten the nuts in several steps, starting from the center and working out in a spiral.
Further installation is carried out in the reverse order of removal.
Start the engine and check for exhaust gas leaks.