Special section Motor Diesel

Cylinder head

Motors equipped with indirect injection with a room or rooms face the navel, which is made of steel or ceramic.

Room navel
These rooms are always pressed installation time so as not to shift its position, the groove and secured with pegs / bullets.

Front room
These rooms are held by using the ring screws. His position is also secured by the groove / wedge
1. Front room
2. Injector holder
3. Incandescent spark plug holder
4. Ring screw
5. Ring seals

The things that need to be considered on a cylinder head repair

Thicker cylinder head gasket
Cylinder head gasket replacement is always with the original thickness, also for a new cylinder head surface digrinda (because the flat cylinder head Diesel motor, therefore penggerindanya not affect the volume of the combustion chamber)

The distance between the valves, the mouth of the face and upper rooms piston
In the grinding cylinder head, the distance is reduced. To avoid collision between the piston and the valve (or front room), then the original distance to be adjusted.

standard distance adjusted by grinding the valve seat
standard distance adjusted by increasing the thickness of the sealing gasket

Cylinder heads on their own

• The friction in the cylinder head gasket, thermal expansion differencesbetween the motor blocks and cylinder heads to be small
• If one is cracked, replacement is easy and relatively inexpensive
• Construction is lighter and cheaper


Blook motor & crank mechanism
Split shaft tilt

• Since the combustion pressure on the high Diesel motor, large diameterbearings should
• In order to be installed / dismantled through the diameter of the cylinder,then the base of the shaft is made oblique


Cylindrical tube wet

To be equitable and overhoul cooling can be implemented with ease, Dieselmotors are often used in a cylindrical tube wet

• Distance A, B is important because the meeting so that the cylinder head gasket
• Hole release that led to the outside air serves to prevent the cooling waterinto the crank chamber during sealing ring / oring leak

Construction piston (eg direct injection)

Function ring of steel / ceramic
a) Overcoming the heat expansion
b) Overcoming the piston ring groove wear palinng top

piston cooling



• Used in Diesel motors that use turbo (sometimes also used in diesel motorwithout a turbo)
• Cooling with oil spray piston holding a soft, stuck piston rings or pens