Coil and points wiring diagram is a commonly searched topic for those who own vintage cars or motorcycles. The ignition system of these vehicles usually includes a coil and a set of points, which work together to create a spark and start the engine. In this article, we will provide a step-by-step guide to wiring a coil and points, along with some frequently asked questions.
What is a Coil and Points?
A coil and points is an ignition system used in older vehicles. It consists of a coil, which is responsible for producing high voltage, and a set of points, which regulate the current flow to the coil. When the points open, the current to the coil is interrupted, causing a spark to be created that ignites the fuel in the engine.
Coil and points ignition systems were popular in vehicles built before the 1980s, when electronic ignition systems became more common. Today, they are still used in vintage vehicles and motorcycles, as well as in some racing applications.
Tools Required
Before we get into the wiring process itself, it is important to have the right tools on hand. Here is a list of tools you will need:
| Tool | Function |
|---|---|
| Screwdriver | To loosen and tighten screws |
| Wire cutters | To cut wire to the correct length |
| Wire strippers | To remove insulation from wire |
| Multimeter | To measure voltage and continuity |
Step-by-Step Wiring Guide
Step 1: Disconnect the Battery
Before starting any work on the ignition system, it is important to disconnect the battery. This will prevent any accidental electrical shocks or shorts, which can be dangerous.
Step 2: Remove Old Wiring
If you are replacing an old coil and points system, start by removing the old wiring. This may involve disconnecting the wires from the coil, points, and distributor.
Step 3: Install the Coil
Install the new coil in the same location as the old one. Make sure the mounting bracket is secure, and that the coil is grounded properly. Connect the primary wire from the coil to the points, and the secondary wire to the distributor.
Step 4: Install the Points
Mount the points in the distributor, and adjust the gap to the manufacturer’s specifications. Connect the wires to the points, making sure they are secure and properly insulated.
Step 5: Connect the Wiring
Connect the wires from the battery, ignition switch, and starter to the appropriate terminals on the coil and distributor. Use a multimeter to check for continuity and voltage, and make sure all connections are tight and properly insulated.
Step 6: Reconnect the Battery
Once all wiring is complete, reconnect the battery and start the engine. Check for proper ignition timing and spark, and make any necessary adjustments.
FAQs
Q: What is the purpose of a coil and points?
A: The coil and points work together to create a spark that ignites the fuel in the engine, allowing it to run. The coil produces high voltage, while the points regulate the current flow.
Q: How do I know if my coil or points are bad?
A: If your engine is not starting or running properly, it may be due to a bad coil or points. You can use a multimeter to check for continuity and voltage, or have a mechanic test the ignition system for you.
Q: Can I replace a coil and points with an electronic ignition system?
A: Yes, many older vehicles can be retrofitted with electronic ignition systems, which offer improved reliability and performance. However, this can be a more complex and expensive process.
Q: Can I install a coil and points myself?
A: Yes, if you have basic mechanical knowledge and the right tools, you can install a coil and points system yourself. However, if you are unsure about any aspect of the process, it is best to consult a professional mechanic.
Q: How often should I replace my coil and points?
A: Coil and points systems can last for many years with proper maintenance. However, they may need to be replaced if they become damaged or worn out. It is a good idea to have your ignition system inspected regularly by a mechanic to ensure it is functioning properly.
Coil and points wiring diagram is an important topic for those who own vintage vehicles. By following this step-by-step guide, and with the right tools and knowledge, you can wire a coil and points system yourself. Remember to always prioritize safety, and consult a professional if you are unsure about any aspect of the process.
