Toyota Exhaust Manifold
An automobile usually carry two types of
manifolds, the intake manifold and the exhaust manifold. The intake
manifold is designed to charge the cylinders right amount of air and
fuel. Whereas exhaust manifold takes care of gathering exhaust gases
leaving from the cylinder head and from the various exhaust ports, and
then route them to the catalysts and mufflers of the exhaust system.
Exhaust manifold is a tubular passage usually of cast iron or
steel. It is integrated to the exhaust side of the cylinder head,
significantly serving as connection point for the exhaust pipe. The
connection is tightly sealed by the exhaust manifold gasket. It may
also hold other hardware components or the air injection system or of
oxygen sensor. An exhaust manifold may as well contain heat riser
valve. It’s a temperature-sensitive spring controlled device, which
helps divert hot exhaust gases towards intake manifold through a
separate passage to help in better warm-up drivability.
A Toyota may actually possess one or two exhaust manifolds
depending on the engine configuration. Toyota engines which feature
in-line cylinders carry one exhaust manifold. Those that have cylinders
arranged in V-type, such as the V6 and V8 possess two separate exhaust
manifolds mounted to each cylinder head.
Toyota exhaust manifolds must be conditioned at all times in order
to ensure free flowing of the exhaust gases. That way, the header which
an exhaust manifold also features can improve breathing, so to help the
system operate with better efficiency. The best way to ensure such
performance is by proper maintenance. If you regularly check its
condition, rest assured carbon monoxide and exhaust leak caused by
cracks and loose exhaust manifolds would be prevented. On the other
hand, if the manifold is already damaged, bring it to a reliable auto
shop and let a professional technician check it for you.