PLEASE HELP WITH MY PAPER!?

i need to put this information (below) in my own words, BUT I'm currently studying for 3 midterms for tomorrow, plus more homework. if someone could please paraphrase this stuff it would be a HUGE help and another thing off my to-do list.:











A vehicle's ignition system provides the first steps required to start the engine. The primary goal of the system is to ignite the fuel-air mixture so that the resulting energy can power the motor. A variety of ignition system designs have been used throughout the years. However, modern cars utilize an electric spark to initiate combustion.


Modern car engine ignition systems consist of a distributor, ignition coil, spark plugs and spark plug wires. The entire system is connected to the engine's battery. The distributor is the most complex and integral component of the system, and includes a rotating cam, condenser, rotor and distributor cap.


The ignition coil is the component that connects directly to the vehicle's battery and includes two transformer windings. The primary winding feeds into the distributor, while the secondary winding connects to the spark plugs. The distributor's cam rotates in unison with the engine's compression cycle. When enough energy has been created, the spinning cam opens a breaker, which causes a high-voltage jump in the ignition coil. This voltage surge is transported to the spark plugs, resulting in the necessary electric spark to begin ignition.


There are currently two types of automobile ignition systems in use: mechanically timed and electronic. They differ mainly in the way that the high-voltage surge is released to the spark plugs. Mechanically timed systems utilize a series of breaker points, while electronic systems use optical or light sensors. Electronic ignition systems are considered superior because they eliminate the possibility for mechanical wear and improve overall effectiveness.


A car engines Ignition System with distributor type ignition systems can seem complex, but once simplified can be diagnosed with ease. Using the Diagram provided above you can see there are several different components. The most common component is the spark plug. If you do not have spark at the spark plug then you can backtrack from there. Use a new spark plug or spark tester to test for spark coming from the plug wire, if you do not see spark here, test for spark coming from the coil wire to the distributor. If these test ok, move on and look at the distributor cap and rotor for corrosion or damage. If these look ok, then you most likely have a failed ignition module. The ignition module is located under the distributor cap on GM vehicles and external on most other vehicles. Ignition module failure is the most common no spark symptom outside normal tune up maintenance.


The ECM (engine control module) controls the engine ignition timing by advancing and retarding the primary trigger signal. In old cars a points, condenser and a vacuum advance unit performed this job. This ignition coil is a pulse-type it consists, in part, of two coils of wire. These wires are wrapped around two iron cores. Because this is a step-up transformer, the secondary coil has far more turns of wire than the primary coil. The secondary coil has several thousand turns of thin wire, while the primary coil has just a few hundred raps. This allows 40,000 volts or more of voltage to be generated by a car battery.


This electrical signal is generated by the crankshaft position sensor (CKP), camshaft position sensor (CAS). The ECM calculates spark timing by using the computer system.


The initial power supplied to the ignition system is generated from the battery. All vehicles use an alternator to recharge the battery during normal operation. A low battery can cause an engine not to start even if the engine is cranking over slowly. This is because the vehicle voltage has dropped below 12 volts. If any component of the ignition system is not functioning properly, it can cause an entire ignition system failure. Proper maintenance such as a tune up can help ensure that the vehicle's ignition system operates at peak performance.


Most four-stroke engines have used a mechanically timed electrical ignition system. The heart of the system is the distributor. The distributor contains a rotating cam driven by the engine's drive, a set of breaker points, a condenser, a rotor and a distributor cap. External to the distributor is the ignition coil, the spark plugs and wires linking the distributor to the spark plugs and ignition coil.


The system is powered by a lead-acid battery, which is charged by the car's electrical system using a dynamo or alternator. The engine operates contact breaker points, which interrupt the current to an induction coil (known as the ignition coil).


The ignition coil consists of two transformer windings sharing a common magnetic core鈥攖he primary and secondary windings. An alternating current in the primary i|||This is YOUR "to-do" list -- can't understand why you think that WE would do it.





Also remember, putting something "in your own words" is STILL plagiarism! If you want to use parts of this (and you didn't even post all of it) in your paper, just cite where you got the information.





Here's how to summarize:


http://www.class.uidaho.edu/adv_tech_wrt鈥?/a>





My best advice would NOT be waiting around for someone to do this -- that you get on it yourself and perhaps learn not to procrastinate.