Intake and exhaust systems Group 22
110
Air filter
The disposable air filter is of the dry type with a paper filter
element. There is a pressure drop indicator which shows a
red indicator when the filter is clogged and needs replacing.
Starter heater
The pre-heating and post-heating times are a factor of engine
temperature.
The purpose of the starter heater is to warm up the air in the
intake manifold when the engine is started. The heated air
makes for easier starting and also reduces the generation of
exhaust smoke during cold starts.
Exhaust manifold
The exhaust manifold is exposed to significant heat stresses
and fluctuations and is therefore manufactured of a heat-re-
sistant material. The exhaust manifold is cooled by air.
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