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An engine valve normally needs to be removed from the head for a valve job, or to replace other parts related to its operation like the spring or valve guide. This is normally done when the engine has a poor seal from the valve/valve seat or oil consumption caused by the vavle guide.

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Q: Why does an engine valve need to be removed from the cylinder head?
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What is An overhead valve engine?

A 4-cycle engine that has the intake and exhaust valves located in the cylinder head.


How do you take a cylinder head out of an 1994 Geo Tracker?

I recommend you get a service manual; the one the dealer techs use not Chilton, etc.. Ebay usually have these for the specific year. If you are going to do any work on your car you will need the service manual. The head can be removed after you remove the intake and exhaust manifolds, valve cover,head bolts (the 16v engine requires some of the rocker arms be removed to get to the head bolts). The service manual will give a step by step procedure.


When do you have to use a oversize headgasket?

After the cylinder head or block have been skimmed. For example. An engine has overheated and the cylinder head has been warped. The head is removed and milled so that the mating surface is flat again. The thickness of the oversized gasket will depend on the amount of material removed. If a thicker gasket wasn't used, the compression ratio may be raised or the pistons may come into contact with the valves


How do I repair a burned exhaust valve?

thats a big job irst you need to remove all accesories hanging off the head.then you need to remove inlet and exhaust manifold.you need to drain engine coolant.then remove head. once head is removed you can get at the valves.note when head is removed you will need to examine all other valves for seating and condition of valve guides. one would also try to figure the reason the valve burned out in the first place.also check all valve stem seals. so if all is good, replace bad valve, make sure it is seated properly bt doing a valve grind job.then put engine back together again.depending on what sort of engine it is, you may have to reset the timing.


Where is the oil control valve located in 2000 Toyota Echo?

The oil control valve is located on the upper left corner (if you are facing engine from the front ) of the cylinder head, close to the upper alternator mounting bracket. It has a two terminal wire connected to it, and is secured to the head by a single 10mm bolt.

Related questions

Is the intake or exhaust valve located in the cylinder head on a overhead valve engine?

Type your answer here... They are in 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 is the engine upper end?

The cylinder head and valve gear.


What needs to be done before the valves are removed from the cylinder head?

Valve keepers


What is An overhead valve engine?

A 4-cycle engine that has the intake and exhaust valves located in the cylinder head.


How can the inlet and exhaust valve be identified on an assembled engine?

On a fully assembled engine, the intake and exhaust valves will not be visible. If the cylinder head is removed from the engine, the valves will then be visible. The intake valve faces are usually larger than those of the exhaust valves, and can be easily distinguished visually.


How do you fix a thrown rod on a ford probe Se?

replace the engine ================== The engine would at least have to be removed, cylinder head removed, oil pan removed, and new bearings installed with rods. If you get that far, you may as well overhaul the engine with new rings, seals, bearings, valve job, resurface cylinder head etc.. Either that or yes, get another engine. Either way its a lot of work or even more money to have a shop do it. -Shaun


Where are gaskets in an 99 Oldsmobile alero?

There are many gaskets on any car engine. If you are asking about head gaskets, they are between the cylinder head(s) and the engine block. The cylinder head is under the valve cover. --------------


Is a valve gasket and a head gasket the same thing?

Valve cover gasket holds oil from the valves from leaking off the top of the head . Head gasket is lower and holds cylinder pressure between the cylinder head and the engine block.


Does the 97 ford explorer V8 5.0 liter come stock with dual or single overhead valve?

It's an over head valve engine ( pushrod ) it isn't an over head cam engine It has 1 exhaust valve and 1 intake valve per engine cylinder


How do you change the valve stem seals on a 1997 Mazda 626 2l?

The cylinder head must be removed. If you go to that much trouble, it would be best to resurface the head and do a valve job.


Is a 16 valve engine a 4-cyliner engine?

If the four cylinder engine is a Dual Over Head Cam design ( YES ) or it could be a V8 engine with 2 valves for each engine cylinder