In automotive engineering, an exhaust manifold collects the exhaust gases from multiple cylinders into one pipe.
A vehicle’s exhaust manifold plays the leading role in a car or truck’s exhaust system. It connects to each exhaust port on the engine’s cylinder head, and it funnels the hot exhaust to the exhaust pipe. With the help of the exhaust manifold gaskets, it also prevents the toxic exhaust fumes from sneaking into the vehicle and harming the occupants. Needless to say, it’s pretty important to have an exhaust manifold in good working order.
A cracked or broken exhaust manifold is most often caused by one of two things: The first is heat cycles and/or age. Over time, the manifolds just can’t take the heat anymore (literally and figuratively), and cracks begin to form in them. The cracks then turn into small holes, and it doesn’t get any better from there. The second common reason for exhaust manifold failure is because of broken exhaust system hangers. Your whole exhaust system is supposed to be held up with a bunch of hangers. If those hangers break off, or the rubber donut exhaust hangers tear apart, all of that weight becomes the responsibility of the exhaust manifold. Sadly, they aren’t built for that kind of action. Before long, they give in to the extreme weight hanging off of them, and fail in grand fashion.
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