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A faulty exhaust valve
This exhaust gas is a complex mixture of gases, liquid and solid particles.
Auto exhaust= CO2+CO+SIO2+H20. Auto exhuast is a mixture
As an air/fuel mixture is drawn into the intake ports, intake valves open to allow the mixture to enter the cylinder. On the exhaust stroke of an engine, the exhaust valves open, allowing the burned air/fuel mixture to exit out the exhaust ports. Intake valves are larger than exhaust valves, and are able to be found on the "cold" or intake side of the cylinder head(s).
black exhaust indicates too much fuel or insufficient air in the mixture. It may be a leaking or sticking injector, a blocked air filter or a sensor may not be functioning properly and the computer is sending more fuel to the engine to compensate.
to rich of a gas mixture
Yes, it is a mixture of snow and dirt, usually soot from traffic exhaust.
Inlet manifolds are actually called intake manifold and this is to allow air to be injected into the fuel for either a rich or lean mixture for either performance or gas mileage (which can be adjusted). The Exhaust manifold is used to expel your burnt fuel, or air/fuel mixture, during the exhaust stroke on a 4-cycle engine to allow room for the intake stroke to bring in your fuel, or air/fuel mixture. The exhaust manifold simply directs the exhaust and become extremely hot. The exhaust is pushed out by the exhaust stroke.
no if the valves do not seat properly against the head the piston will force the fuel mixture past either into the exhaust or the intake if the vehicle is running rich i would suspect the intake valves
A car exhaust contains a mixture of gases:carbon dioxidecarbon monoxidenitrogennitrogen oxideswater vapourunburned hydrocarbons from fuelcyclic hydrocarbons
No because it prevents them from reacting with air
Intake manifold delivers the fuel air mixture to the cylinder heads, exhaust manifold collects the gases after combustion, and channels them into the exhaust pipe.