The cylinder head is located on top of the cylinder block. The bottom of the cylinder head is indented and combines with the piston to form the combustion chamber. Internally, there are a oil hole and Read more Engine Cylinder Head
Gasoline Engine
EnginePlastic Region Bolt
The plastic region bolt is used in such areas as the cylinder head or bearing cap assembly to provide a steady bolt tension. Normally bolts are tightened to the elastic region. In this condition, the bolt Read more EnginePlastic Region Bolt
EngineCylinder Block 1 of 2
The cylinder block acts to maintain the compression pressure with the piston and receive the combustion pressure. Recent cylinder block consists of the aluminum cylinder block and the cylinder liner. However, Read more EngineCylinder Block 1 of 2
EngineCylinder Block 2 of 2
EngineCrankshaft
The crankshaft acts to convert the linear motion of the pistons into revolving motion. In order to be able to receive great force and revolve at high speed, it needs enough strength Read more EngineCylinder Block 2 of 2
Main journal and crank pin size
Differences in the main journal and crank pin circumference occur from unevenness in manufacturing precision. For that reason, there are several standard sizes for the main journal and crank pin. This Read more Main journal and crank pin size
EngineConnecting Rod
The connecting rod takes the force, which the piston receives, and transfers it to the crankshaft. Since it is constantly affected by compressing and pulling force, it needs to be sufficiently strong and Read more EngineConnecting Rod
Engine Crankshaft Bearing
When there is an appropriate oil film on the surface of the bearing, it can absorb the heavy load and shock from the rotating parts in the combustion stroke. This oil film prevents seizing and reduces Read more Engine Crankshaft Bearing
Big end bore size
The big end bore is machine-manufactured with the connecting rod and bearing cap. Due to unevenness in machine manufacturing precision, differences in big end bore size can occur. For that reason, there Read more Big end bore size
Engine Bearing Selection
The oil clearance for the crankshaft bearing and the connecting rod bearing is determined by the engine model. Each bearing should be selected to obtain the proper oil clearance with regard to the cylinder Read more Engine Bearing Selection
What is EnginePiston?
1. Description
The piston consists of the lowest part of the combustion chamber. In order for the pis-ton to move, there needs to be clearance between the piston and the cylinder wall. The construction Read more What is EnginePiston?