What is a spark plug housing?
Housing. The housing forms an outer shell that surrounds the insulator, supports the insulator, and installs the spark plug in the engine. At the bottom the ground electrode is located, so current can flow through the engine itself to the center electrode over the gap.
Which is not a part of spark plug?
Explanation: The spark plug has three main parts, the center electrode, the ground electrode, and the insulator separating them. Besides these, there are the body shell, the sealing ring, and the gasket washer. The distributor cap is not a main part of the spark plug.
What is inside a spark plug wire?
Description. Spark plug wires have an outer insulation several times thicker than the conductor, made of a very flexible and heat-resistant material such as silicone or EPDM rubber. The thick insulation prevents arcing from the cable to an earthed engine component. A rubber “boot” covers each terminal.
What sits on top of a spark plug?
At the top of the spark plug sits the connector, or terminal. This is where the spark plug wire attaches. The terminal connects inside the plug to the copper core of the center electrode, which is surrounded by insulation. Next comes the hex head.
Can a spark plug produce electricity?
No, you can not. Spark plug from an electronics perspective is just two conductors with an airgap, connected to a high voltage source. It consumes energy from your battery to produce the spark needed to run your engine.
Where is the spark plug gap in an engine?
Spark plug gap – that area between the center and ground electrode, where spark plug discharge is designed to take place – is essential for optimal engine performance. Setting it requires a precise and steady hand as you check or adjust the spark plug center electrode or center electrode ceramic insulator.
What are the parts of a spark plug?
SPARK PLUG Construction. A spark plug comprises three main parts: the housing, insulator, and electrodes. * Example: IRIDIUM POWER. Insulates the terminal, center shaft and center electrode from the housing, preventing escape of high voltage from the electrodes.
What makes a spark plug hard to read?
1 Carbon fouled 2 Wet (gasoline) 3 Burnt 4 Oil deposits 5 Worn out Electrode 6 Broken Electrode 7 Normal
What are the negatives of multiple spark plugs?
The negative side to this arrangement is that the multiple flame fronts create a lean spot where they meet thus creating less power and potentially harming the engine. In an ideal engine a multiple plug arrangement would show no benefit over a centrally located single plug but there is no ideal engine.