J08E Used Engine Heads For Excavator SK350 - 8 11101 - E0541 For
Hino
Specification of Used Engine Heads
| Type: Engine cylinder head | Model Number: J08E |
| Application: Excavator | Part number: 11101e0541 |
| Type: Electric injection | valve: 24 valve |
| Car Make: Kobelco | Number of Cylinders: 6 |
Description of Used Engine Heads
How are cylinder heads attached to the engine block?
Large vehicles usually cylinder heads as separate pieces that mount
on the engine block by means of bolts or studs. Usually, the type
of engine determines the kind of cylinder head to use. Inline
engines use one cylinder head, while V and Boxer engine types have
two different heads.
Cylinder Head Function
1. Provide the mounting structure for various components such as
the inlet and outlet exhaust valves and ducts, spark plugs,
injectors, and (in some head designs), the camshaft.
2. Contain the passages for coolant, oil, and combustion gases.
3. Dissipate the heat produced by the engine and, therefore,
produce cooling.
4. Act as the combustion chamber seal and the engine’s mechanical
control powerhouse.
5. Take the compression resulting from combustion pressure.
Why Do Cylinder Heads Fail?
The most common reason for cylinder head failure is overheating
caused by, for example, coolant loss, head gasket failure, or
restricted flow of coolant.
In extreme cases, a cracked or damaged cylinder head can result in
terminal damage to the entire engine! You must deal with any
problems as soon as possible to try and prevent this from
happening.
Cylinder heads can also warp because of the tremendous pressure
placed on them by extreme temperature changes. This means that it
is no longer providing a flat surface to hold the head gasket in
the right position, which can lead to expensive problems later on
in the form of major repairs or total engine replacement being
required.
Warping is a particular problem for cylinder heads made of
aluminum. Different engines have different levels of tolerance for
cylinder head warping – some can withstand a high amount of warping
while still working effectively. If your cylinder head does warp,
you may be able to take it to a mechanic who specializes in
realigning them – if not, you will probably need a replacement.
