Ignition leads

Types of Ignition Leads

Ignition leads are an essential part of any vehicle's ignition system. They are available in numerous types and each of them is suitable for a specific type of vehicle. The most common types of ignition leads are as follows.

• Resistor Ignition Leads

  This type of ignition lead is mostly used in vehicles with older or conventional ignition systems. Unlike the non-resistor leads, they help to reduce the radio frequency interference (RFI) generated by the ignition system.

• Suppression Ignition Leads

  Suppression ignition leads are widely used in vehicles that have electronic ignition systems. The leads make use of resistance wire or carbon to minimize RFI.

• High-Performance Ignition Leads

  The leads are specially designed for use in performance or racing vehicles. They are manufactured from high-quality materials like silver or high-carbon that can improve the engine's performance by enhancing the spark's strength.

• Silicone Ignition Leads

  They are also known as high-voltage ignition cables. Silicone ignition leads are made using silicone rubber. They are commonly found in vehicles with high-performance engines. The ignition leads are known for their high heat resistance and durability.

• Carbon-Fiber Ignition Leads

  These types of ignition leads are made using carbon fiber. They are often used in vehicles with electronic ignition systems. Carbon-fiber ignition leads are designed to be durable and lightweight.

• Copper Ignition Leads

  They are manufactured using copper wire. Copper ignition leads are often used in vehicles with older or conventional ignition systems. They are known for their excellent conductivity. However, they are prone to corrosion, which can affect their performance over time.

• Magneto Ignition Leads

  These types of ignition leads are commonly found in older vehicles and racing cars. They are designed to be used with magneto ignition systems, which generate sparks through mechanical means rather than electrical components.

Specifications and maintenance of Ignition Leads

When buying ignition leads, it is important to check for specifications that meet the requirements of the target market. Below are some of the key specifications to consider:

• Length

  Each ignition lead has a different length. The length of the ignition lead determines its application. For instance, longer leads are ideal for larger engines. On the other hand, shorter leads are suitable for small engines.

• Diameter

  The diameter of the ignition lead will affect the flow of current. Larger diameter leads have the capacity to carry more current when compared to smaller diameter leads. As a result, larger diameter leads have improved performance and reliability.

• Resistance

  Different ignition leads have different resistance levels. The resistance level has an impact on the current carried through the lead. Ignition leads with low resistance offer a better solution for high-performance vehicles.

• Material

  Ignition leads are made from different materials. For instance, they can be made from copper, carbon, or aluminum. Each material has its own characteristics. The type of material used will affect the performance and durability of the ignition lead.

• Insulation

  Insulation is an important feature in ignition leads. Insulation helps to prevent the current from leaking out of the lead. In addition, it acts as a barrier against electrical interference. If the insulation is of good quality, it will improve the performance of the ignition lead.

Below are the maintenance requirements of ignition leads:

• 1. Regular inspections: Perform regular inspections to check the condition of ignition leads. Look for signs of damage, wear and tear, or cracks. Also check for signs of electrical interference.
• 2. Cleaning: It is important to clean ignition leads regularly. Cleaning helps to remove deposits that may interfere with their performance. Use a suitable cleaner to clean the ignition leads. In addition, it is advisable to wipe them with a damp cloth to remove dust and dirt.
• 3. Proper installation: Ensure that the ignition leads are properly installed. In addition, make sure that they are correctly routed. This will help to prevent damage and wear and tear.
• 4. Replacement: Over time, ignition leads will wear out. Therefore, users should check the manufacturer's guidelines for the recommended period of replacement. When replacing the leads, make sure to use leads that are compatible with the vehicle's ignition system.
• 5. Avoid contact: Take precautions to avoid contact of the ignition leads with other components under the hood. When the leads are in contact with other components, they may wear out quickly.

How to Choose Ignition Leads

Choosing the right ignition leads for retail can be a daunting task because of the factors to consider. Here are the factors:

• Compatibility

  When choosing ignition leads, consider whether they are compatible with various vehicle makes and models. This is done by checking the specifications and details to ensure that they are compatible with a wide range of vehicles and not just a selected few.

• Performance

  Another factor to consider when choosing ignition leads is the performance level. It is advisable to choose leads that are high quality and have good performance. This is because they provide optimal performance and even improve engine performance.

• Durability

  Ignition leads are made from different materials and the materials determine the durability of the ignition leads. When choosing durable ignition leads, it is advisable to go for those made from silicone or high-quality materials. This is because they are more durable and resistant to wear and damage.

• Brand reputation

  Brand reputation is also a factor to be considered when choosing ignition leads. Retailers are encouraged to go for well-known and trusted brands. This is because they offer quality products and reliable performance.

• Price

  Price is a crucial factor to be considered when choosing ignition leads. Retailers are encouraged to choose ignition leads that offer great value but at affordable prices. They can also choose leads from reputable brands and premium quality, but at a lesser cost.

• Set Composition

  When choosing ignition leads, the composition of the set also needs to be considered. This is because different vehicles require different numbers of ignition leads. For example, vehicles with inline 4-cylinder engines require 4 leads, while vehicles with V6 engines require 6 leads. Therefore, it is important to choose ignition leads with the right set composition for different vehicles.

• Length and Diameter

  Length and diameter are also important factors to consider when choosing ignition leads. This is because different vehicles require ignition leads of different lengths and diameters. When choosing ignition leads, be sure to choose leads with varying lengths and diameters to fit different vehicles.

• Resistance

  Resistance is also a factor to be considered when choosing ignition leads. Retailers are encouraged to choose ignition leads with low resistance. Low resistance leads provide better conductivity and improve engine performance.

How to DIY and Replace Ignition Leads

DIYers can successfully replace ignition leads by gathering the necessary tools and materials and following the right procedures. First, to facilitate the process, gather the required materials and tools.

Tools Needed:

• Socket or ratchet set
• Screwdriver
• Torque wrench
• Wire brush
• Safety glasses
• Lubricant

Materials Needed:

• New ignition leads
• Ignition lead cleaner

Steps to Replace Ignition Leads

• 1. Safety Precautions: Turn off the engine and put on safety glasses to avoid accidents and injuries.
• 2. Identify Leads to Replace: Open the bonnet and identify the ignition leads connected to the spark plugs and the distributor or ignition coil.
• 3. Take Note of Lead Arrangement: Before removing the old leads, take note of their arrangement or refer to the service manual to ensure correct installation of the new leads.
• 4. Remove Old Leads: Gently pull the old leads off the spark plugs and ignition components. If they are stuck, use a screwdriver to remove them carefully.
• 5. Clean Ignition Components: Use a wire brush and ignition lead cleaner to remove any dirt or corrosion from the ignition components' terminals. This ensures good electrical contact with the new leads.
• 6. Install New Ignition Leads: Compare the length of the old leads to the new ones to ensure they are the same. Then, attach the new leads to the spark plugs and the ignition components, ensuring a snug fit.
• 7. Arrange Leads Properly: Arrange the leads according to the pattern noted earlier or as per the service manual, keeping them clear of hot surfaces, moving parts, and sharp edges.
• 8. Torque Specifications: If applicable, use a torque wrench to tighten any connections to the manufacturer's specified torque.
• 9. Test Ignition: Start the engine to ensure it's running smoothly and test the ignition system to ensure proper lead installation.

Q&A

Q1: How can I tell if my ignition leads are bad?

A1: There are several signs that point to faulty ignition leads. These include having a rough running car, particularly one that struggles to run when it's damp or wet. Other signs include a car that is hard to start, particularly one that struggles to start up when the weather is cold. An easily visible sign of faulty ignition leads is if they appear cracked or damaged. Drivers may also notice their car's fuel consumption is high. This is because faulty ignition leads prevent proper combustion, forcing the car to use more fuel. Drivers may also notice their car's emissions are high. This is because the car is trying to compensate for the lack of power by working harder and emitting more fumes.

Q2: What is the difference between ignition leads and spark plugs?

A2: Ignition leads and spark plugs are two different components of the ignition system. Ignition leads, also known as spark plug wires, carry electricity from the ignition coil to the spark plugs. Spark plugs, on the other hand, are responsible for igniting the air-fuel mixture in the engine's cylinders. In short, ignition leads provide a pathway for electrical current, while spark plugs use that current to create a spark.

Q3: Can I use universal ignition leads, or should I buy vehicle-specific ones?

A3: It is advisable to buy vehicle-specific ignition leads rather than universal ones. This is because vehicle-specific ignition leads are designed to fit perfectly and match the specifications of the ignition system of a particular car make, model, and year. This ensures optimal performance and reduces the risk of ignition problems.

Q4: How often should ignition leads be replaced?

A4: Ignition leads should be replaced every two to four years, or when signs of wear or performance issues are noticed. The lifespan can vary depending on the quality of the leads, the type of material used, and the driving conditions.

Q5: Can faulty ignition leads damage other engine components?

A5: Yes, faulty ignition leads can cause issues that may affect other engine components. If the ignition leads cause the engine to run rough or misfire, it can lead to excessive wear on components like the catalytic converter, which may become clogged from the increased emissions. Additionally, a poorly running engine can strain the entire powertrain, potentially impacting the lifespan of parts like the spark plugs, coils, and even the fuel injectors.