General Overview

Turbocharger:

PURPOSE
The turbocharger performs supercharging with use of wasted energy from the hot exhaust gas. It provides the following features:
^ Less power loss with the use ofexhaust gas energy.
^ Lightweight and compact for better adaptability.
^ Better matching with engine load.
^ Easy and effecient adjustment of boost pressure by bypassing through the exhaust gas passage.

LOCATION
The turbocharger is located behind the R.H. cylinder head.

OPERATION
A turbine in the exhaust gas flow is connected through a shaft to the compressor. During normal, steady operation, the turbine does not rotate with sufficient speed to boost pressure to compress the air/fuel mixture. As engine speed increases, the mixture is compressed, allowing the denser mixture to enter the combustion chambers and develop more engine power during the combustion cycle. Intake manifold boost pressure is controlled by a bypass valve which directs a portion of the exhaust gases around the turbine at a predetermined point in the cycle to limit boost pressure.