Cummins engine parts 4BT Cylinder head 3966448

Cummins engine parts 4BT Cylinder head 3966448

In an internal combustion engine, the cylinder head (often informally abbreviated to just head) sits above the cylinders on top of the cylinder block.
cylinder headcloses in the top of the cylinder, forming the combustion chamber. This joint is sealed by a head gasket.

cylinder head most engines, the head also provides space for the passages that feed air and fuel to the cylinder, and that allow the exhaust to escape. It can also be a place to mount the valves, spark plugs, and fuel injectors.

Types of Cylinder Heads:

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.

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.

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.

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Also DONGFENG truck parts such as: ENGINE PARTS, FUEL SYSTEM PARTS, BODY PARTS, GEARBOX PARTS, AXLE PARTS and CHASSIS PARTS.

1.Cylinder Block, Cylinder Head, Cylinder Liner, Cylinder Gasket.

2.Crankshaft, Camshaft, Main Bearing, Thrust Bearing.

3.Water Pump, Oil Pump, Air Compressor, Fuel transfer pump.Turbocharger, air compressor, intake pipe, air filter, exhaust pipe,Fuel injection pump, injector, injector fuel supply tube, fuel manifold, fuel filter.

4.Piston, Piston Pin, Piston Ring, Piston Cooling Nozzle.

5.Connection Rod, Bushing, Gear, Gear Housing, Belt Tensioner.

6.Electronic control module, pressure sensor, position sensor,temperature sensor, pressure switch, etc