Nissan Datsun Altima Exhaust Gasket
About exhaust gasket
No exhaust gaskets are normally found on new cast iron heads, as the machined surfaces attached seal perfectly. Exhaust gaskets are used after separating the components during service but asbestos or other perforated steel material is used as replacement gaskets. The manifold is usually much broader than the head.
What is the purpose of exhaust gasket?
The gasket from the exhaust manifold connects the exhaust manifold to the cylindrical nose. On V6 and V8 engines, there are two exhaust manifold systems and therefore, two manifold gaskets are needed. An exhaust manifold gasket seal protects the connection between the manifold and the cylinder head. It prevents exhaust leakage from the contact, and also ensures that all exhausts handle the catalytic converter. Flange and ring gaskets show other connection points of the exhaust system, like between the exhaust pipe and the exhaust manifold.
How exhaust gasket Works?
The exhaust collector receives heated exhaust gases from the cylindrical head and generates 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 builds up without the exhaust system flowing gas.
Where is exhaust gasket located?
These are fixed to the engine cylinders head(s) and covered with a gasket called the exhaust manifold gasket. The exhaust manifold gasket is normally a multi-layered gasket that contains metal and other materials designed to provide the best seal.