Do spark plugs ignite the air-fuel mixture?
A spark plug ignites the air-fuel mixture. The four-strokes of the spark ignition engine are intake, compression, power (combustion), and exhaust.
Do I need a tune after spark plugs?
A tune-up is usually recommended if a car starts running poorly (scroll down for symptoms), or when your spark plugs are due for replacement according to the maintenance schedule. Conventional spark plugs need to be replaced every 30,000-50,000 miles.
What does a full tune-up consist of?
Generally, a tune-up consists of checking the engine for parts that need cleaning, fixing, or replacing. Common areas under inspection include filters, spark plugs, belts and hoses, car fluids, rotors, and distributor caps. Many of these only require a visual inspection or a simple test.
When should the spark plug ignite the compressed air fuel mixture?
During normal ignition, the spark plug fires just before the piston reaches TDC. The flame travels across the combustion chamber igniting the Air/Fuel Mixture. This causes a steady increase in cylinder pressure and forces the piston down on the Power Stroke.
How long does a tune up take?
around two to four hours
A tune-up takes around two to four hours, depending on the vehicle and tune-up services needed. More modern, computerized vehicles usually take less time than older cars with more mechanical parts to adjust.
Do I need a hotter or colder spark plug?
Critical factors affecting heat range include: Air/fuel mixture: Lean air/fuel ratios raise cylinder-head temperatures, requiring a colder plug. Rich air/fuel ratios require a hotter plug to prevent fouling. Mixtures that cause the plugs to read lean may contribute to pre-ignition or detonation.
Why do I need a quality plug wire?
Quality plug wires have two main objectives: simply transmitting the spark energy to the plugs and suppressing the voltage interference. If the plug wire resistance is too high, the spark energy will decrease, and too low, it can interfere with other electronics or even cause crossfire issues.
Where are the spark plugs in a car?
Spark plugs are installed in the cylinder head and deliver spark current to the combustion chamber. Symptoms of malfunctioning sparkplugs include: Produce high voltage spark energy sufficient to properly ignite the air/fuel mixture inside the combustion chamber. The On-Board computer or ignition module typically controls ignition coils.
What kind of spark plug wire do I Need?
The spark needs of a stock 216-cubic-inch inline-six Chevrolet are drastically different than those of a supercharged big-block Ford. Plug wires are often advertised by the diameter of the wire, making it easy to look at the options for plug wires and immediately think if 7mm is good, 8.8mm must be great.
Why do I need a lower resistance spark plug wire?
The higher voltage of a coil on plug or distributor system can create enough voltage that a slightly higher resistance wire will not greatly affect spark strength, but the relatively lower output of a magneto means using a lower resistance wire is more important to ensure a hot spark from the spark plug.