C9 Used Engine Heads For Excavator E336D E330D 332 - 3619 311 -
7226
Specification
| Item: Engine cylinder head | Engine Type: Diesel |
| Application: Excavator | Type: Diesel Engine |
| Injection: ELectric | valve: 24 valve |
| Cooling: Water Cooling | Number of Cylinders: 6 |
Description
What is a cylinder head and how does it fail?
Cylinder head cracking has become more common as car manufacturers
use mixed metals in their engines. Many vehicles, for example, have
a solid cast iron engine block but an aluminium cylinder head.
These two metals expand at different rates, and this can lead to
cylinder head cracking.
The most common cause of cylinder head cracking is overheating.
When a vehicle overheats, it puts stress on all of its metal
components, including the cylinder head, which is often at the
center of the heat. This can cause the head gasket to fail, which
may lead to cylinder head cracking as the components warp and
pressure begins to leak. All drivers should properly maintain their
vehicles to prevent overheating.
Many drivers mistakenly pour cool water into the radiator when
their vehicles overheat, in an attempt to bring the temperature
down. This is not a good idea, because the rapid temperature change
will cause cylinder head cracking due to thermal stress. In a case
where the cylinder head survives overheating, the driver may
inadvertently destroy it by trying to do good.
To prevent overheating, make sure that your radiator is filled and
in good condition, with a tightly sealed cap. Check to be certain
that your engine thermostat is in good working order, and
accurately reflecting the temperature. Make sure that you have no
stretched belts or leaky hoses, and that the fan is working
effectively. If your car does overheat, stop, turn off the engine,
and allow it to cool completely before adding water.
Cylinder head cracking can also be caused by localized hot spots in
the engine, which usually represent a failure in some portion of
the cooling system. Always make sure that hot spots are addressed,
particularly if your head gasket has failed and required
replacement recently. Hot spots are often caused by uneven
expansion of engine parts, leaky hoses, and pre-ignition in the
cylinders of the engine.
