12.18 Exhaust System

12.18.2 Describe the function of the exhaust manifold.

The exhaust manifold is a component in the engine that collects exhaust gases from each cylinder and channels them into a single pipe that leads to the exhaust system.

The main function of the exhaust manifold is to collect the exhaust gases from the engine's cylinders and direct them to the exhaust system.

The exhaust manifold is typically made of cast iron or stainless steel and is designed to withstand high temperatures and pressure.

It is an important component in the engine's emissions control system, as it helps to reduce harmful emissions by directing the exhaust gases to the catalytic converter.

In summary, the exhaust manifold collects exhaust gases from each cylinder and directs them to the exhaust system, and is an important component in the engine's emissions control system.

12.18.4 Explain the importance of proper sealing of the exhaust manifold.

Proper sealing of the exhaust manifold is important for several reasons.

First, the exhaust manifold must be sealed to prevent exhaust gases from escaping from the engine.

If there are any leaks in the exhaust manifold, exhaust gases can escape and enter the engine compartment, which can be dangerous for the driver and passengers.