Parts of the engine

Parts of the engine:-

1. Oil Filler Cap
2. Tappet
3. Tappet Cover
4. Outlet Elbow
5. Camshaft Gear
6. Camshaft
7. Cam or Lobe
8. Push Rod
9. Rocker Shafts and Arms
10. Valve
11. Valve Springs
12. Cylinder Head
13. Cylinder Head Gasket
14. Cylinder Block
15. Inlet Manifold
16. Exhaust Manifold
17. Spark Plug
18. Cylinder or Bore
19. Gudgeon Pin
20. Pison
21. Piston Rings
22. Connecting Rod
23. Crankshaft
24. Balancing Weight
25. Crankshaft Gear
26. Oil Sump
27. Drain Plug

1. Oil Filler Cap

The enclosed lid through where we are supposed to refill the engine oil.

2.Cylinder Block

It is the block below the cylinder head and above the crankcase(in case of the separate cylinder block and crankcase) or above the sump (in case of the integral cylinder block and crankcase)cylindrical shape in which the piston.

It consists of 3 main parts:-

• The Cylinders where the pistons slide up and down.
• The port or the openings for the valves.
• The passages for the flow of coolant or cooling water.

3. Cylinder Head

It is the top cover of the cylinder. It is where spark plugs are mounted and sometimes valves as well (in I- and F- head). It incorporates passage for the cooling water as well.

4. Cylinder Gasket

It is placed between the cylinder head and cylinder block to retain compression in the cylinder, to prevent leakage and to ensure metallic tight fit joint.

5. Crankcase

It is the case which is below the cylinder block. It supports the camshaft and the crankshaft as well.

6.Oil Sump

It is placed below the Crankcase and it serves as a reservoir for the engine oil where it can be stored, cooled, ventilated.

7.Cylinder Liners

It is the barrel-shaped iron alloy containing silicon, manganese, nickel, and chromium, fitted into the cylinder block to reduce cylinder wear and tear.

8.Piston

The main component of the engine which is used to convert the chemical energy obtained by the combustion of the fuel into mechanical power during the expansion of the gases.

9.Combustion Chamber

It is where the air-fuel mixing and the combustion take place. It is the space enclosed between the piston head and cylinder head when the piston is at the top dead center.

10.Piston Rings

Rings that are fitted into the grooves of the piston to maintain a good seal to prevent blow-by of burnt gases, better piston lubrication and better heat transfer from the piston to the cylinder walls.

11.Piston Ring
It connects the piston to the smaller side of the connecting rod. It is also known as Wrist Pin, Gudgeon Pin.

12. Connecting Rod
The rod that connects the piston with crankshaft. At the piston end piston pin connects it to piston whereas at crankpin is used to connect it to the crankshaft.

13.Crankshaft
The mechanical component of the engine which converts the reciprocating motion of the piston to rotational motion

14.Valve
It is the component which is used to regulate the amount and timing of the intake(air-fuel mixture or air) and exhaust (exhaust gases) of the cylinder.

15.Camshaft
It is a shaft upon which cams are mounted the cam changes the rotation motion of the camshaft to linear motion of the follower.

16.Vibration Damper
It is used to dampen the Torsional Vibrations of the crankshaft.