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A.Ignition system       An engine can generate power due to the combustion occurs in the engine. Powered engine combustion heat is converted into mechanical energy, called engine fuel.      There are some kind of engine fuel, which is the gasoline engine. In the gasoline engine thermal energy obtained by burning a mixture of fuel and air in the cylinder. The combustion process in gasoline engine starts the spark jumps.      Engine gasoline, gas into the cylinder is a mixture of air and fuel, the mixture is then burnt to produce combustion pressure later converted into mechanical power.      The system used is an electric ignition system, which is used to generate sparks electrical voltage as a sprinkler. Because the gasoline engine combustion process initiated by a high voltage sparks produced by spark plugs, several methods necessary to produce the required high voltage current.      The ignit...

Ignition System Components A.       Battery      This component serves to provide current 12 Volt low voltage for the ignition coil. The battery is an electrochemical made to supply power to the engine starter system, ignition system, lights, and other components. This tool store electrical energy in the form of chemical energy released when needed and supply it to each of the electrical system. The charging cycle and expenditures occur continuously. 1.        Battery Construction In the sulphuric acid electrolyte batteries are the positive electrode and negative electrode in the form of plates. The rooms are divided into several cells, and in each - each cell there are some elements that are submerged in the electrolyte. a.        Battery element      Inter plates positive and negative each connected by a strap plate. Bond positive and negative pla...

1.     Standard Drafting Standard technical drawing is a uniformity that has been agreed in order to avoid misunderstandings in communication techniques. People involved in the field of engineering drawings need to know about the standards. Related persons include students in technology and industry groups, the product planners, machine operators, assembly operators, mechanics and control the quality of a product / machine. Standard drawing techniques can be applied within the company, between companies / industries within a country, even the standard can be applied to engineering drawings of industrial inter-state known as International Standards or abbreviated SI. Countries that have made a standard is:                a.     Japanese Industrial Standard (JIS)                      for more info :  JISC b.      Nederla...

A.          Sistem Pengapian Suatu mesin dapat menghasilkan tenaga disebabkan didalam mesin tersebut terjadi pembakaran. Mesin bertenaga panas menghasilkan pembakaran yang dirubah menjadi tenaga mekanik, disebut motor bakar. Motor bakar ada beberapa macam salah satunya adalah motor bensin. Pada motor bensin energi panas diperoleh dari hasil pembakaran campuran bensin dan udara di dalam silinder. Proses pemba k aran pada motor bensin dimulai adanya loncatan bunga api. Pada motor bensin , gas yang masuk ke dalam silinder adalah campuran antara udara dan bensin, campuran ini selanjutnya dibakar untuk menghasilkan tekanan pembakaran yang nantinya dirubah menjadi daya mekanis. Sistem yang digunakan adalah sistem pengapian listrik, dimana untuk menghasilkan percikan api digunakan tegangan listrik sebagai pemercik. Karena pada motor bensin proses pembakaran dimulai oleh loncatan api tegangan tinggi yang dihasilkan oleh busi, beberapa metode dip...

1.     Standar Gambar Teknik Standar gambar teknik merupakan suatu keseragaman yang telah disepakati bersama dengan tujuan untuk menghindari salah pengertian dalam komonikasi teknik. Orang-orang terkait dalam bidang gambar teknik perlu mengetahui tentang standar. Orang-orang terkait tersebut antara lain siswa pada kelompok teknologi dan industri, para perencana produk, operator mesin, operator perakitan, mekanik dan pengontrol mutu dari suatu produk/mesin. Standar gambar teknik dapat diberlakukan di dalam lingkungan perusahaan, antar perusahaan/industri di dalam suatu negara, bahkan standar gmbar teknik dapat diberlakukan pada industri antar negara yang dikenal dengan Standar Internasional atau disingkat SI. Negara-negara yang sudah membuat standar antara lain : a.     Japanese Industrial Standart (JIS)      Lebih lengkapnya : JISC b.     Nederland Normalisatie Instituut (NNI)    ...