6D125 - 3 Used Engine Heads 6156 - 11 - 1101 For Excavator PC400 -
7 Water Cooling
Specification
| Item: Engine cylinder head | Part Number: 6217 - 11 - 1113 |
| Application: Excavator | Type: Diesel Engine |
| Injection: ELectric | valve: 24 valve |
| Size: Standard | Number of Cylinders: 6 |
Description
Components of cylinder head
Spark plugs
Spark plugs are found in gasoline engines. They convey electricity
to the combustion chamber to ignite the air/fuel mixture. The plugs
usually mount on the cylinder head, with their tips going right
into the combustion chamber. To ensure an airtight seal, the spark
plug mounts are usually threaded.
cylinder head fuel injectors
1. Fuel injectors
On the cylinder head cover, you will also find fuel injectors.
These are basically valves but electronically controlled. In a
diesel engine, the injectors push fuel into the combustion chamber
directly, with the help of the injection pump. Fuel injectors in a
petrol engine use an indirect mechanism for the same function.
cylinder head camshaft
2. Cylinder Head Camshaft
Overhead camshaft or OVC cylinder heads house the camshaft. On
these cylinder head types, the camshaft works the opening and
closing of the valves in a timed manner. The crankshaft, which is
one of the engine block components, drives the cylinder head
camshaft using a belt.
other cylinder head parts
3. Other Cylinder Head Parts
The cylinder head cover also contains pathways for coolant to cool
the engine, and oil for lubrication purposes. Cylinder head port
designs vary, just like the head designs do. Essentially, every
type of construction aims at making the part as efficient as
possible.
The performance of the cylinder head affects the operation of
different cylinder block parts directly. The cylinder head cover
gasket, too. When these two parts fail, the engine may not function
as required.
A leak of coolant due to cracks or blown head gasket causes the
engine to overheat. It can also reduce the compression ratio and
make the vehicle to struggle uphill or during acceleration.
Therefore, inspect the head and the head gasket regularly, and fix
or replace them if damaged. Also, the cylinder head parts such as
valves, springs, and other components.
