yes replace the PCV valve it cheep ,,
The exhaust valve gets hotter than the intake valve.
Go to youtube, search for Davidsfarm, and he shows how to fix a valve.
The four strokes of a four-stroke engine are intake, compression, power and exhaust. The crankshaft controls the upward and downward motion of the pistons. The camshaft controls the opening and closing of the intake and exhaust valves. Intake stroke- the intake valve is open and the exhaust valve is closed. The piston moves downward, decreasing the pressure in the cylinder, which draws the fuel-air mixture in through the intake valve. Compression stroke- both the intake valve and the exhaust valve are closed. The piston moves upward, compressing the fuel-air mixture. When the piston nears TDC (top dead center), the fuel-air mixture is ignited by the spark plug. Power stroke- both the intake valve and the exhaust valve are closed. The explosion caused by the ignition of the fuel-air mixture (combustion) forces the piston downward. Exhaust stroke- the intake valve is closed and the exhaust valve is open. The piston moves upward, forcing the gases produced by combustion out of the cylinder through the exhaust valve. So, for each firing of a given cylinder, the intake valve opens once and the exhaust valve opens once. But, for each firing of a given cylinder, the piston must travel downward and then upward twice (in each direction.). Therefore, the crankshaft must rotate twice per given cylinder firing, while the camshaft rotates only once per given cylinder firing.
Yes, the 1989 Ranger does have a PCV valve. I can speak for the 2.3 liter 4-cylinder version only. If you stand on the driver side of the engine compartment you will see the intake manifold (silver cast looking with the name FORD on it), on the bottom of the intake there is a 90 degree elbow (the intake forms a "Y" and if you look through the "Y" you can see the elbow) that points back toward the firewall. Connected to this is a rubber hose that routes back toward the firewall and then turns down at the firewall-side of the intake. If you follow this hose along you will come to the PCV valve. The valve is installed in the hose and connects to another rubber hose on the other side of the PCV valve. Hope this helps.
intake .004mm , exhaus .006mm
yes. if the valve is plugged or stuck closed, oil can be sucked into the intake through the pcv breather.
Chalwyn valves can be attached to a diesel engine air intake system. The valve is designed to safely shutdown the engine in the event of external vapours or gasses being sucked into the engine through the air intake. In areas where there is a chance of vapour ignition a chalwyn valve will normally be specified by the site owner.
With a bad/burned intake valve the engine will idle rough with a skip and lose power. The cylinder in question will test low in compression. If the valve is damaged bad enough the engine will make a popping noise through the carburetor or throttle body especially during acceleration.
The fuel/air mixture passes through the intake valve to get into the combustion chamber. After combustion, the spent gasses travel out of the combustion chamber through the exhaust valve.
Oil on the spark plugs can come from two places. It can be sucked into the combustion chamber through the intake valve stem when the piston is moving downward during the intake stroke, taking the oil from within the valve cover area. This usually calls for new valve stem seals/guides. The other place it can come from is the oil pan/sump past the oil control rings on the piston, also sucked up during the intake stroke. This usually calls for a new set of rings or a rebuild. Are we Good here?
intake valve is bigger.
The intake valve was created to let fluid or air run through it. Intake valves are commonly found in automobile engines where they allow gasoline and air into the engines cylinders.
If there is a PVC valve and hose and filter connected to the air intake, oil could be sucked up from the valve covers when the throttle is applied. perhaps the PVC valve needs to be changed.
In/out hose located on valve cover (fresh air) Dirty air sucked in through breather hole on manifold
An intake valve is larger.
The EGR valve takes unburnt gas vapors from the exhaust and sends it back through the intake manifold to be burnt. The EGR valve takes unburnt gas vapors from the exhaust and sends it back through the intake manifold to be burnt.
The bigger valve is the intake.