Chevrolet Malibu Exhaust Gasket
About exhaust gasket
There is usually no exhaust gasket on new cast iron heads because the machined surfaces precisely secure the seal. Exhaust gaskets are used after components are removed during service, but the replacement gaskets are used with asbestos or other perforated steel materials. The manifold is far wider than the head.
What is the purpose of exhaust gasket?
The gasket in the exhaust manifold joins the exhaust manifold to the cylindrical head. There are two exhaust manifold systems on V6 and V8 engines, and therefore two multiple gaskets are needed. A seal of exhaust manifold gasket protects the connection between the manifold and the cylinder head. It prevents exhaust leakage out of contact and also ensures all exhausts handle the catalytic converter. Flange and ring gaskets show other connection points of the exhaust system, such as between the exhaust pipe and exhaust manifold.
How exhaust gasket works?
The exhaust collector receives heated exhaust gas from the cylindrical head and creates pressure inside the collector. The metal gasket extends to fill the small gap between the head and manifold of the cylinder, so that the rear pressure will build up without the exhaust system flowing gas.
Where is exhaust gasket located?
These are fastened to the engine cylinders head(s) and are covered by a gasket called the exhaust manifold gasket. The exhaust manifold gasket is usually a multilayered gasket that contains metal and other materials designed to provide the best seal.