A detail on the automobile configuration. Understanding Automobile Configuration.
Fouling is said to happen when the spark plug tip temperature is insufficient to burn off the fuel, carbon, oil and other deposits. Fouling percolates the spark to the metal shell and hence the spark plug will fail to spark across the plug gap resulting in misfire. The wet fouled spark plugs will not fire [...]
When enough voltage is not delivered to light off the fuel in the combustion chamber at the exact moment of the power stroke, a spark plug can be said to have misfired. It might be a few degrees before top dead center. There could be a variety of reasons for a spark plug to generate [...]
Detonation is commonly found in cars that are highly tuned. When portions of the gas in the combustion chamber, generally the portion of gas at a corner, most far away from the spark plug self ignites, it is known as detonation. In the condition of detonation, the self ignition of that portion of the gas [...]
The ignition of the air/fuel mixture before the preset ignition timing mark is termed as Pre-ignition. The mains reason of pre-ignition is due to the hot spots in the combustion chamber. Pre-ignition can also be caused amplified by low octane fuel, too high compression, insufficient engine cooling, lean air/fuel mixture, over advanced timing, or too [...]
The rate at which work is done is termed as power. The amount of work a thing can do in a given space of time depends on the power generated by it. Consider a small child and adult asked to lift a sack of sand weighing 100 pounds onto a 3 feet high table top. [...]
Alike torque, work is also measured in units force times distance. But there is an elusive difference between Torque and Work. Movement should be involved for work to take place. Work can be termed as product of force times distance moved. Consider, a sack of sand on the floor weighing 100 pounds and should be [...]
A twisting force about an axis of rotation is termed as Torque and is measured in units of force times distance from the axis. Torque is exerted on a bolt when you tighten it. You apply a torque of 10 foot pounds, if the spanner is 1 foot long and you exert a force of [...]
Tip Temperature and Firing End Appearance The appearance of the firing end of a spark plug very much depends on the tip tmperatur of the spark plug. Spark plugs diagnosis depends on three criteria: Good Fouled Overheated The spark plug self cleaning temperature is defined as the borderline between the optimum and fouling operating regions [...]
Spark Plug Basics There are two primary functions for spark plug: Ignite the air/fuel mixture Remove heat from the combustion chamber In short, spark plugs transmit electrical energy that turns fuel into working energy. The ignition system should supply a sufficient amount of voltage to cause it to spark across the spark plug’s gap. This [...]