Removing
1. Remove the intake manifold as described in the previous Chapter.
2. Unscrew the four fastening nuts, and separate the outlet pipe from the manifold flange.
3. Remove the three nuts securing the air heater shroud to the top of the exhaust manifold. Separate the air duct from the casing, then remove the casing (see illustration).
4. Turn off six fixing nuts, and remove a collector from a head of the block of cylinders (see illustration). Remove the pad.
Installation
5. Install in reverse order. Make sure the gasket-to-gasket surfaces of the manifold and exhaust pipe are clean, and be sure to install a new gasket (see illustration). Tighten the fixing nuts with a torque specified specifications.