6 Modifications of General On Motorcycles

2011-04-15T22:18:00.000-07:00

Modif motor is the change in part of the construction of motor components with the aim of improving its capabilities. Among them are frequently in motor modif to do is:

1. Piston

Aiming to reduce the weight of the piston so that the motor power increases becausepower is lost to fight the heavy piston. To reduce the weight of the piston is done bycutting the bottom of the piston, the size of the cut is already certain and eachmotorcycle is not the same. 2. Cylinder head

In modif motor, compression, combustion chamber will determine the powergenerated. The higher the compression the engine the greater the power generated.Conversely the lower the power of the engine, the smaller the power generated. Toenhance combustion chamber compression can be done by reducing the volume ofthe combustion chamber. In the motorcycle generally this is done by mengerindacylinder head so that the combustion chamber volume is reduced and the compressionis higher. Cutting the cylinder head must be done carefully, because if it cuts too muchcan cause the piston will collide with the exhaust valve at the time step, especially on a motorcycle 4 stroke. Cutting cylinder heads that are too much compression resulted ina very high pressure that would cause other disturbances and further damage. 3. Flushing hole (Hole Revenue)

The number of new gas mixture of gasoline and air is incorporated into the enginedetermines the motor power is generated. More and more gas is included means the higher the gas density so that the compression pressure rises and better combustion.To achieve that hole flushing (pemasukan0 extended for the number of new gasentering more. Expansion of rinse holes should be fixed at a certain limit andaccompanied by modifications in other parts. If it is not done then the motor is notstrength but rather added into damaged.

4. Electrical System

Electrical power at most 6 volt motor, the voltage can be converted into 12 volts by changing the electrical system. With voltage 12 volt lights become brighter and horn becomes harder and spark plugs to be larger. With the change in voltage is then all electrical appliances such as lights, coil, battery, and the horn should be replaced with a 12 volt. Diameter of magnet wire coils should also be replaced with a larger diameter.

5. Rocker Arm

Rocker arm or arms pounder valve also functions to continue the movement of the rod-suppressing (push rod) or from the shaft so that pam can open and close valves. Thegood rocker arm is a lightweight but strong. If the cuts will result in excessive rockerarm rocker arm to be easily broken. Modif motor.

6. Gear

Modif motor done To speed motorcycle engine power increase on the same rear gearshould be replaced with a smaller diameter, if the gear is replaced with a smallerlength of chain wheel, of course, should be reduced or tuned.

WELDING MACHINE

2011-04-11T14:52:00.000-07:00

Welding machine power source can be obtained from:

- gasoline or diesel motor

- subtation

High voltage electric power is transferred through several kebengkel weldingtransformer.
Voltage required by the welding machine is usually:

- 110 Volt
- 220 Volt
- 380 Volt

Between networks with a welding machine in the garage, there is a breaker switch.

Welding machines driven by motors, suitable for field work or in the garage that has noelectricity network.

Arc welding flame caused by electric current from a welding machine.

Arc flash occurs when made certain distance between the electrodes with the workpiece and the wires clipped to kebenda work.

Welding machine there are two kinds, namely:
- welding machine DC (direct current - direct current welding machine)
- welding machine AC (alternating current - welding machine alternating current)

Secondary cabling, the DC welding machine can be configured / made into a DCSPor DCRP.
- if the cable is connected kekutub negative electrode machine, and the cable is connected positive kekutub then called straight polarity relationships (DCSP)
- the relationship DCSP, the heat that arises, one third and two thirds of heatingelectrodes heats the workpiece.

Means workpiece receives more heat from the electrode.

- if the cable is connected kekutub positive electrode machine, and the cable is connected kekutub negative polarity it is called the relationship the best (DCRP)

notes:
DCSP = direct current straight polarity
DCRP = direct current polarity revers

- the relationship DCRP, the heat that arises, two-thirds of the heating electrodes and a third heating workpiece. Mean electrode receives more heat from the workpiece
- when used D.C.R.P, it?
This depends on:
- workpiece material
- position welding
- materials and electrode salutan
- the desired penetration

In AC welding machines, cables and wiring the electrodes can be interchanged without affecting the heat changes that occur in the arc flame.

The advantages of machine D.C among others:
- stable arc flame
- can use the electrode covered and not covered

- to weld thin plates in relation DCRP
- can be used to weld in damp places and narrow

The advantages of AC machines, among others:
- arc small flame, so minimize the possibility of porous timbunya on ridge-ridge las
- equipment and maintenance is cheaper

Large current in the welding can be arranged with a tool setter, with a detour handlepull or push, depending on its construction.
Large amperage produced machines can be viewed on the scale amperes

ENGINEERING

6 Modifications of General On Motorcycles

WELDING MACHINE