The engine head or cylinder head is positioned on top of the cylinders above the cylinder block, also known as the engine block. The cylinder head houses the camshafts, along with the intake and exhaust valves.
Full Answer
What is a "head" in a car engine?
The engine head is one of the most important parts on which the car works well, and it eliminates its function in preventing the leakage of gases from the combustion chamber, in addition to its role in preventing the leakage of water into the cylinder in the engine, and its damage leads to many malfunctions in the car, it may reach the car stopping completely about job
What is the major function of an engine?
The function of an engine is to convert chemical energy into mechanical energy (work) via a process known as a heat cycle. By burning fuel, energy is released in the form of heat, and that heat is transferred to what is generally referred to as th...
How to clean engine heads?
Removing Engine Components for Cleaning
- Unhook the spark plug wire and secure it, removing any batteries if equipped.
- Remove the muffler, muffler guard and any other components that block access to the cylinder. ...
- Cylinder head bolts near the muffler and exhaust port may be longer. ...
- Lift off the cylinder head. ...
- Remove and discard the old head gasket.
What does a warped head on an engine do?
Those who have warped cylinder heads usually suffer the result of an overheating problem, just like they can crack if they crack while being bent. In order to determine whether a cylinder head is warped, inspect the region around the edge of the gasket and the head.
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What is Enginetech cylinder head?
Enginetech offers new casting as well as remanufactured cylinder heads. Our line of cylinder heads also includes the option of fully dressed heads as well as bare heads that include new seats and guides. Enginetech bare heads are perfect for engine builders who have had a cylinder head failure caused by a crack yet can still reuse their old hardware by simply transferring over your old valves, springs, keepers, retainers, etc., making them a very cost-efficient solution to a common problem. For those who are looking for more of a bolt on and go option, our fully dressed cylinder heads are the easy answer.
What is Enginetech catalog?
Our Catalog is an easy-to-use site that allows customers to find the correct parts for their rebuild. The Enginetech Catalog is available 24/7 for all current Enginetech customers. Contact us for your login credentials.
How to contact Enginetech?
To learn more about the quality pistons provided by Enginetech, contact one of our Sales and Service Pros at 1-800-869-8711 or send an inquiry from the form on the contact page.
Who is the president of Enginetech?
Joe Munoz, the president of Enginetech, goes into detail about our cylinder heads and how they can help you with your rebuild. We are constantly striving to improve our products so that our customers get the best product on the market. We emphasize quality and customer service in our business model. Enginetech is a customer-oriented business!
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What is a DOHC cylinder head?
A double overhead camshaft (DOHC) cylinder head from a Honda K20Z3 . The bottom (left) and top (right) of a Malossi cylinder head for single-cylinder, two-stroke scooters. Hole in the middle for the spark plug, four holes for the cylinder bolt posts.
What is an overhead camshaft?
In the overhead camshaft (OHC) design, the cylinder head contains the valves, spark plugs and inlet/exhaust tracts just like the OHV engine , but the camshaft is now also contained within the cylinder head. The camshaft may be seated centrally between each offset row of inlet and exhaust valves, and still also utilizing rocker arms ...
What is an overhead valve?
In the overhead valve (OHV) design, the cylinder head contains the poppet valves and the spark plugs, along with tracts or 'ports' for the inlet and exhaust gases. The operation of the valves is initiated by the engine's camshaft, which is sited within the cylinder block, and its moment of operation is transmitted to the valves' pushrods, and then rocker arms mounted on a rocker shaft—the rocker arms and shaft also being located within the cylinder head.
Why is it important to keep all moving parts within the block?
Keeping all moving parts within the block has an advantage for physically large engines in that the camshaft drive gear is small and so suffers less from the effects of thermal expansion in the cylinder block.
What is the limit of side valves?
The limit on sidevalve performance is not the gas flow through the valves, but rather the shape of the combustion chamber. With high speed engines and high compression, the limiting difficulty becomes that of achieving complete and efficient combustion, whilst also avoiding the problems of unwanted pre-detonation. The shape of a sidevalve combustion chamber, being inevitably wider than the cylinder to reach the valve ports, conflicts with achieving both an ideal shape for combustion and also the small volume (and low height) needed for high compression. Modern, efficient engines thus tend towards the pent roof or hemi designs, where the valves are brought close into the center of the space.
What is the name of the passages in a cylinder head?
Internally, the cylinder head has passages called ports or tracts for the fuel/air mixture to travel to the inlet valves from the intake manifold, and for exhaust gases to travel from the exhaust valves to the exhaust manifold.
Why were side valve engines used?
Early sidevalve engines were in use at a time of simple fuel chemistry, low octane ratings and so required low compression ratios. This made their combustion chamber design less critical and there was less need to design their ports and airflow carefully.
