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Two inlet and two exhaust valves. Multiple valves are usually used because they provide more efficient gas (read air/fuel mixture, or exhaust gas dependent on which valves) flow than one valve of the same surface area.
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Where is the intake valve on a 2000 Olsmobile Alero?
There is one intake valve for each cylinder. It is located in the top of the head. If you remove the valve cover, you can see the stem of the valves by peeking through the caps in the valve spring. If you want to replace a valve, it will be necessary to first remove the cylinder head.
What are the signs of a bent valve?
IF there is no compression in one or more cylinder, you either have a bent valve, a burned valve or a bad head gasket. In any case, the head must be removed if you plan to repair the engine.
What causes a cylinder to lose compression in a 4.9 6 cyl?
Burnt Valve, worn piston rings, blown head gasket, or cracked head.
Can you replace a blown valve on the 2.8 V6 Isuzu without replacing the whole cylinder head?
yes the valve can be replaced, but the head has to come off to do it. as long as there is no damage to the head ,you just need to do a valve grind to reseat the new valves,and not replace the head with a new one
Zero reading in one cylinder of a Ford v-8 in a boat Is this a blown head gasket?
It could be a head gasket, or valve trouble.
2 The type of engine that contains one camshaft mounted in its cylinder head is called?
Single Over Head Cam or SOHC. Though i should point out it is mounted on top of the cylinder head inside the valve cover.
When One valve tip on a cylinder head is much higher than the others. the most likely cause of this?
When an engine severely overheats a valve or valves can "tulip". This condition can cause the valve to seat lower in the valve seat causing the valve to appear higher than normal. Time for the head to be rebuilt.
What does twinport mean on a corsa?
On an engine with two inlet valves per cylinder it means that there are two ports in the cylinder head and inlet manifold for each cylinder. (IE one for each valve.) Port refers to the passage that air/fuel enters the cylinder through. Older designs had one port in the manifold & head leading to the two valves.
How to compress valve springs?
If the head is still on the engine, you can purchase a kit at most auto parts stores that includes: an air fitting to keep the cylinder filled with compressed air to prevent the valve from dropping into the cylinder, and a special wrench to attach to the rocker stud and press down on the spring retainer while you remove the locks. If the head is off the engine, you will need a valve spring compressor, which is a large c-shaped tool that pushes on the valve's head on one end and the valve spring retainer on the other end. Also you can buy/rent a valve spring compressor that you can use while the head is still on the engine but you will still need to blow air into the cylinder through the spark plug hole to keep the valve up.
What does twinport mean when referring to vauxhall astra?
On an engine with two inlet valves per cylinder it means that there are two ports in the cylinder head and inlet manifold for each cylinder. (IE one for each valve.) Port refers to the passage that air/fuel enters the cylinder through. Older designs had one port in the manifold & head leading to the two valves.
How do you replace egr valve on Toyota Rav4?
On a 98 rav4 you disconnect the two rubber hoses one on top and one on the side, you then remove the 12 mm nuts that bolt the valve to the intake manifold, then you remove the 10 mm screws from the bottom of the valve that goes to the cylinder head.
What is the difference between a cylinder head and a head gasket?
The cylinder head is a smaller block that (generally) sits on the top of the crankcase. It is the part of the engine where air is received and mixed with fuel, then passed into the block for the intake/compression/combustion cycle and then directs it out on the exhaust cycle. On OHC/OHV (OverHead Cam/OverHead Valve) engines, the cylinder head contains, at least, - with many more possibilities - the intake and exhaust valves (one or more of each per cylinder), the camshaft(s), either a belt or chain for timing the cams and valves to the movement of the pistons, fuel injectors (if present), and various types of apparatus to operate the opening and closing of the valves including mechanical or hydraulic systems for valve movement and sensors such as a MAF (Mass Air Flow), PCV (Portioning Control Valve), and/or EGR (Exhaust Gas Recirculation) valve. The head gasket is the gasket that goes between the cylinder head and the crankcase or block of the engine.
