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Turbocharger and exhaust manifold
The turbocharger is an integral component of the exhaust manifold and although it is possible to separate them, they are not supplied separately.
The turbocharger consists of two elements, a turbine and a compressor. These elements are installed on a single shaft and are contained in a housing.
The turbocharger bearings are supplied engine oil by the oil supply connection in the top of the turbocharger. This oil is returned to the engine oil pan by the oil return tube.
The turbine element of the turbocharger uses the pressure of the exhaust gas to drive the compressor. The compressor draws air through the air cleaner and forces it into the intake manifold.
The turbocharger is governed by a wastegate. The wastegate redirects some of the exhaust gas past the turbine and therefore acts as a form of governing mechanism. The wastegate is controlled by a wastegate control valve which is preset during vehicle production and must not be tampered with.
