MAIN COMPONENTS OF MOTORCYCLE ENGINE

                                              The main components on the bike

The main components on the bike are:

1. Cylinder head (cylinder head)
2. Engine cylinder block (cylinder block)
3. Space crank the engine (crankcase)

Thus, the three main parts are the backbone of for two-wheeled motor vehicle.

1. Cylinder head (cylinder head)

Cylinder head resting on the top of the cylinder block. point fulcrum sealed with gaskets (gasket) to guard against compression leak, in addition to the surface of the metal head upper surface of the cylinder and the cylinder block is not damaged. head cylinder usually made of aluminum material mix, in order to hold rust resistance also at high temperatures and light. Usually the outer finned cylinder head construction, to help release heat on air-cooled engines.

2. Engine cylinder block (cylinder block)

 

Cylinder liner and cylinder block are the two parts are attached to one another. Power a motor is usually expressed by the size of a cylinder of a motor. Cylinder liner is firmly on the block, and the material is not the same. Cylinder liner is made from materials that are resistant to friction and heat, while the block is made of heat resistant cast iron. At first, there is a design into a single, a rarity now. Now that means that the cylinder liner is made separately can be replaced if the wear is excessive. The material is made ​​of gray cast iron. For a lighter motors such as the bicycle motors of this material is mixed with aluminum. Materials selected for the block fulfill the terms of use, namely: Resistant to temperature high, can conduct heat well, and resistant to friction.
      Cylinder block is where the moving piston. place piston is right in the middle of the cylinder block. Piston cylinder liner is coated with materials in order to avoid rapid wear due to friction. Although it has received adequate lubrication but still did not wear a cylindrical hole can be avoided. Thus in the long term wear and tear must have happened. Cylinder bore wear and tear could have occurred by so it can be uneven taper. Each of these damages must be known to determine the repair steps.

3. Space crank the engine (crankcase)

Crankcase (like a crank) are usually made ​​of aluminum die casting alloy with less. crank chamber functions as the home of the components in its interior, which is a component:

1.Generator or alternator for generating electrical power motorcycle power
2.oil pump
3.clutch
4.Crankshaft and bearings
5.Transmission gear or gear
6.As a lubricating oil reservoir

crank chamber located below the cylinder and is usually the part that is linked to the motorcycle frame.

 How to measure the wear of the cylinder:

 

1. Remove the cylinder block 
2. Remove the piston
3. Measure the cylinder bore diameter with a "dial indicator" which measured the top, middle and bottom of the cylinder bore. Measurements were performed twice in the cross position. 
4. Calculate the magnitude oval and taper. Compare with the provisions of the manual service.If the amount of taper exceeds the allowable limits to be made over cylinder bore size. Stages over size is 0.25 mm, 0.50 mm, 0.75 mm and 1.00 mm. Over the first size should be 0.25 mm by 0.25 mm below the wear and tear and so on. If the cylinder is not possible in size over the coating solution is to replace the cylinder.

 

source: http://5-tweetysquare.blogspot.com/2011/06/komponen-utama-mesin-sepeda-motor.html

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