Chapter 45 PowerPoint

Define these Technical Terms using the textbook:

1. catalytic converter

2. tail pipe

3. dual exhaust system

4. engine vacuum test

5. exhaust back pressure

6. exhaust leaks

7. exhaust manifold

8. headers

9. heat shields

10. muffler

Answer these discussion questions using the textbook:

1. List the basic parts of an exhaust system.

Read the chapter summary below:

■ An exhaust system quiets engine operation and carries exhaust fumes to the rear of the vehicle.

■ An exhaust manifold connects the cylinder head exhaust ports to the header pipe.

■ The header pipe is steel tubing that carries exhaust gases from exhaust manifold to catalytic converter or muffler.

■ A catalytic converter is a device for removing pollutants from engine exhaust.

■ The intermediate pipe is tubing sometimes used between the header pipe and muffler or the catalytic converter and muffler.

■ A muffler is a metal chamber for damping pressure pulsations to reduce exhaust noise.

■ Heat shields are metal plates that prevent exhaust heat from transferring into another object.

■ When repairing an exhaust system, use rust penetrant on all threaded fasteners that will be reused.

■ Check the exhaust system for leaks and rattles after repairs.

■ When servicing stainless steel exhaust systems, use heavy-duty clamps designed for this type of system.