Your exhaust lines up with exhaust pipes ,your intake lines up with your intake runners.
The exhaust lifters will line up with the exhaust manifolds,Remove the valve cover if your working on a V8 and the valve that lines up with the exhaust port will be the exhaust valve,If it is a Chevy V8 they will be from standing in front of the car exhaust,intake,intake,exhaust,exhaust,intake,intake,exhaust.
look at the head with the valve cover off find where the exhaust manifold goes in tha is the exhaust valve or looking at the valves the first one is exhaust then intake then intake ,exhaust,exhaust,intake,intake,exhaust if you have the head off i think the intake valves are bigger than the exhaust
-intake: exhaust closed, intake open -compression: exhaust closed, intake closed -combustion: exhaust closed, intake closed -exhaust: exhaust open, intake closed
the intake are next to the carb and the exhaust are next to the exhaust manafold intake are .008 exhaust are .012 with the engine warm good luck
Air does not come out of an intake mainfold, because the intake manifolds are under a vacuum. Now exhaust manifolds, that a different story.
back of the intake manifold, middleof the engine. lets gasses from exhaust back into the intake. will be a tube coming off it to the passenger side going to the exhaust manifold
Yes the intake and exhaust valves have to be close.
The intake valves are in the intake ports, the exhaust valves are in the exhaust ports.
Trace the runners. You can see the exhaust runners leading to the exhaust valves, and the intake runners leading to the intake valves.
You need a head or intake gasket. Coolant is getting into engine. Head more likely.
The intake valve is always bigger than the exhaust valve because there is more volume going in to the cylinder than coming out.