Comprehensive Guide to Mallory Dual Points Ignition System Setup for 1966 Ford Mustang

Introduction

The Mallory dual points ignition system is a popular upgrade for classic Ford Mustangs, particularly the 1966 model. This system provides improved ignition timing, spark intensity, and reliability, leading to enhanced engine performance and smoother operation. Following these detailed instructions, you can successfully install and adjust the Mallory dual points ignition system in your 1966 Ford Mustang.

Step-by-Step Installation and Setup

1. Gather Necessary Tools and Materials

• Mallory dual points distributor (compatible with 1966 Ford Mustang)
• Distributor wrench
• Timing light
• Feeler gauge
• Spark plug wrench
• Screwdriver
• Pliers
• Electrical tape

2. Remove Old Distributor

• Disconnect the negative terminal on the battery.
• Locate the distributor cap and remove the retaining screws.
• Pull the cap off the distributor.
• Disconnect the primary and secondary ignition wires.
• Use a distributor wrench to loosen the distributor hold-down bolt and lift the distributor out of the engine.

3. Install Mallory Dual Points Distributor

• Align the gear on the new distributor with the camshaft gear.
• Install the new distributor into the engine, making sure the base of the distributor is fully seated.
• Tighten the distributor hold-down bolt using the wrench.

4. Adjust Point Gap

• Remove the distributor cap to access the points.
• Loosen the point mounting screws using a screwdriver.
• Use a feeler gauge to set the gap between the points to 0.016 inches.
• Tighten the point mounting screws while holding the feeler gauge in place.

5. Set Ignition Timing

• Connect the negative terminal on the battery.
• Attach a timing light to the number one spark plug wire.
• Start the engine and allow it to run at idle.
• Point the timing light at the timing mark on the engine's timing tab.
• Adjust the distributor body by turning it clockwise or counterclockwise until the timing mark aligns with the desired timing setting.
• Consult your vehicle's owner's manual for the correct ignition timing specifications.

6. Adjust Dwell Angle

• Use a dwell meter to measure the dwell angle at idle.
• The dwell angle should be set between 28 and 32 degrees.
• If the dwell angle is not within this range, adjust the point gap accordingly.

7. Connect Ignition Wires

• Connect the primary and secondary ignition wires to their respective terminals on the distributor cap.

8. Reinstall Distributor Cap

• Place the distributor cap back on the distributor and secure it with the retaining screws.

Troubleshooting Common Issues

• Engine Misfiring: Check the point gap, ignition timing, and dwell angle.
• Hard Starting: Ensure that the points are not sticking and that there is a strong spark at the spark plugs.
• Ignition Coil Failure: Replace the ignition coil if the points are not making contact properly or the dwell angle is inconsistent.
• Distributor Gear Wear: If the engine has high mileage, the distributor gear may be worn and need replacement.

Performance Benefits of Mallory Dual Points Ignition System

• Enhanced Ignition Timing: The adjustable breaker plate allows for precise timing, leading to improved engine efficiency and power output.
• Increased Spark Intensity: The dual points provide a stronger spark, resulting in a more complete combustion and smoother running engine.
• Improved Reliability: The redundant points reduce the risk of ignition failure and increase the lifespan of the ignition system.

Comparison of Mallory Dual Points vs. Single Points Ignition System

Frequently Asked Questions

1. What is the recommended dwell angle for a Mallory dual points ignition system?
   - 28-32 degrees
2. How often should I adjust the point gap?
   - Every 5,000-6,000 miles
3. What are the symptoms of a worn distributor gear?
   - Engine misfiring, difficulty starting, and excessive wear on the camshaft gear
4. Can I use a Mallory dual points ignition system on a modern engine?
   - Yes, with the appropriate adapter
5. Is it necessary to use a timing light to set the ignition timing?
   - Yes, for precise adjustment
6. Can I adjust the Mallory dual points ignition system without removing the distributor?
   - Yes, if you have access to a remote dwell meter