S6K Diesel Engine Cylinder Head 518051 518052 3066 For Excavator
E320C / E320D
Specification
| Type: Engine cylinder head | Model Number: S6K |
| Application: Excavator | Part number: 34301 - 01060 / 34301 - 01050 |
| Type: Direct injection | valve: 12 valve |
| Car model: Mitsubishi | Number of Cylinders: 6 |
Description
Material and design of cylinder head
Construction: Cylinder heads are made from either cast iron or cast aluminium.
Cast aluminium is more expensive to produce, but offers
considerable weight-saving and dissipates heat better than cast
iron.
Combustion chamber: The combustion chamber is the space where the fuel and air mixture
is burned.
Ports: The ports of a cylinder head are passageways that allow air and
exhaust gases to enter and leave the combustion chamber.
Cylinder head layouts.
Modifications & Upgrades: A cylinder head can warp over its lifetime, and the lower face
that mates with the block can wear.
Types Of Cylinder Heads
1. Flathead Cylinder Heads: These were the first type of cylinder heads. Flathead cylinder
heads simply protect the cylinder block and have no moving parts.
These cylinder heads do not allow for an efficient air flow, and
thereby provide a poor engine performance.
2. Overhead Valve Cylinder Heads: These cylinders heads are superior to flathead cylinder heads.
Overhead valve cylinder heads have the camshafts above them. These
heads have their pushrods and valves connected to provide a smooth
airflow.
3. Overhead Camshaft Cylinder Heads: These are the most advanced designs of cylinder heads. Overhead
camshaft cylinder heads have the camshafts inside the cylinder
head, eliminating the need of pushrods. This provides a better
airflow, and in turn, increases the efficiency of the engine.
Problems in Cylinder Heads and Their Symptoms
The most common problem with cylinder heads is cracks that occur
often due to engine overheating. A cracked cylinder head may leak
the coolant, due to which the engine will fail to cool efficiently.
This results in further overheating of the engine. When a cylinder
head cracks, it will also cause the oil to leak into the combustion
chambers. This can be detrimental to the engine and can result in
costly repairs for the engine. In many of these cases, the entire
engine will have to be replaced. Other symptoms of a bad cylinder
head include poor engine performance and engine misfire.
When a car overheats, a lot of people fill water in the radiator
without attempting to narrow down the actual problem. This can also
cause the cylinder head to crack, since when water is added, it
results in a rapid change in temperature.
