How to adjust a contact breaker point
The contact breaker points! A crucial component in older ignition systems, but often a source of frustration when they need to be adjusted. Here's a step-by-step guide on how to adjust contact breaker points:
Before you start:
- Make sure you have a good understanding of the ignition system and the role of the contact breaker points.
- Consult your vehicle's repair manual or a reliable online resource for specific instructions and diagrams for your particular vehicle.
- Wear protective gloves and safety glasses to avoid injury from electrical shock or sharp edges.
Adjusting the contact breaker points:
- Locate the contact breaker points: Typically, they're located on the distributor cap or on the ignition coil. You may need to remove a cover or plate to access them.
- Identify the points: The contact breaker points are usually marked with an arrow or a pointer indicating the direction of rotation. The points are typically labeled "IN" and "OUT" or "OPEN" and "CLOSE".
- Check the points' gap: Use a feeler gauge or a point gap gauge to measure the gap between the points. The recommended gap is usually specified in the repair manual or on the points themselves.
- Adjust the points: To adjust the points, you'll need to turn the points' adjusting screw or nut. This screw or nut is usually located on the side of the points or on the distributor cap.
- To increase the gap, turn the screw or nut clockwise.
- To decrease the gap, turn the screw or nut counterclockwise.
- Check the points' gap again: After adjusting the points, recheck the gap using the feeler gauge or point gap gauge to ensure it's within the recommended specifications.
- Repeat the process: If the points are still not within specification, repeat the adjustment process until you achieve the correct gap.
- Test the ignition system: Once the points are adjusted, test the ignition system by cranking the engine and checking for a strong spark at the spark plug wires.
Tips and precautions:
- Always disconnect the battery before starting the adjustment process to prevent accidental engine starts or electrical shocks.
- Use a spark tester or a multimeter to verify the spark output after adjusting the points.
- Be careful not to overtighten the adjusting screw or nut, as this can damage the points or the distributor cap.
- If you're not comfortable with this process or if you're unsure about the adjustment, consider consulting a professional mechanic or a repair manual.
Remember, adjusting contact breaker points requires patience and attention to detail. Take your time, and you'll be back on the road with a reliable ignition system in no time!