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The exhaust manifold needs to have a gasket in place to help seal the juncture between the manifold and the engine. After the gasket and gasket sealer are in place, tighten the bolts for the exhaust manifold. The exhaust pipe can then be replaced on the new exhaust manifold.
you will have to unbolt the exhaust pipe from the manifold pipe and then you unbolt the manifold pipe from the engine, remove old gasket and make sure both sides are clean of the old gasket and then install new gasket and bolt manifold back onto engine.
The exhaust manifold.
A manifold leak is usually in reference to a failure of the intake manifold gasket. It can leak air, oil or coolant. It can leak to the outside of the engine or internally into the engine. A manifold leak may also refer to the Exhaust manifold that is leaking exhaust fumes from a bad gasket or a crack in the manifold.
To replace an exhaust manifold gasket, first, ensure the engine is cool and disconnect the battery. Remove any components obstructing access to the exhaust manifold, then unbolt the manifold from the engine. Carefully remove the old gasket, clean the surfaces, and install the new gasket, ensuring proper alignment. Reattach the manifold, torque the bolts to the manufacturer's specifications, and reassemble any removed components.
You will need to remove the exhaust manifold retaining bolts in your 1993 Chevy Astro. Remove the exhaust manifold. Remove the exhaust manifold gasket and clean the surface. Reverse the process to install the new exhaust manifold gasket.
To replace the exhaust manifold gasket on a 2001 Volvo S40, first ensure the engine is cool and disconnect the battery. Remove any components obstructing access to the exhaust manifold, such as the intake manifold or heat shield. Unbolt the exhaust manifold from the engine block, carefully lift it off, and replace the old gasket with a new one. Reinstall the manifold, torque the bolts to the manufacturer's specifications, and reassemble any removed components before reconnecting the battery.
have you checked to see if there is any broken bolt on the manifold, or worped manifold, burnt manifold gasket
To change the exhaust manifold gasket on a 2002 Chevy Cavalier, first disconnect the battery and remove any components obstructing access to the manifold, such as the air intake and exhaust pipes. Then, unbolt the exhaust manifold from the engine block, carefully removing the old gasket. Clean the mating surfaces thoroughly before placing the new gasket and reassembling the manifold. Finally, torque the bolts to the manufacturer's specifications and reconnect any components you removed.
an exhaust flange gasket, is the gasket,commonly called a donut that is used to seal where the exhaust pipe is bolted to the exhaust manifold
The year, engine size and if it is the intake manifold or an exhaust manifold gaskets would help.
If the valve cover gasket is leaking it will allow oil to leak onto the hot exhaust manifold where it will smolder causing smoke in the engine compartment.