MSD 6AL-2 Ignition Control Module 64213 User Manual

1. Introduction

This manual provides essential information for the proper installation, operation, and maintenance of your MSD 6AL-2 Ignition Control Module, model 64213. The MSD 6AL-2 is a high-performance ignition system designed to deliver multiple sparks for improved combustion and includes a 2-step rev limiter for precise engine control.

Figure 1: The MSD 6AL-2 Ignition Control Module 64213. This image shows the overall design of the ignition control unit, highlighting its robust construction and integrated wiring harness.

2. Safety Information

WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.

Always ensure the vehicle's battery is disconnected before performing any installation or maintenance to prevent electrical shock or damage to the ignition system.

3. Package Contents

Verify that all components are present in the package:

• MSD 64213 Control Module
• Wiring Harnesses
• Mounting Hardware
• Rev Limiter Chips (if applicable)
• Installation Instructions

Figure 2: Included accessories and hardware for the MSD 6AL-2 Ignition Control Module. This image displays various connectors, mounting hardware, and tools provided for installation.

4. Key Features

• Digital Circuitry: Utilizes advanced digital technology for precise spark control and reliable performance.
• Wide Voltage Range: Operates efficiently within a 12-18 Volt range, suitable for negative ground systems.
• High RPM Capability: Supports engine speeds up to 12,500 RPM with 14.4 Volts.
• Low Current Draw: Consumes approximately 0.7 Amp per 1,000 RPM.
• Versatile Trigger Inputs: Compatible with Hall-effect, Points, and Magnetic pickup triggers.
• Integrated Rev Limiters: Features both a 2-step rev limiter and a maximum rev limiter for engine protection and launch control.

5. Installation Guidelines

Proper installation is crucial for the performance and longevity of your MSD 6AL-2. It is recommended that installation be performed by a qualified automotive technician.

5.1 Mounting Location

• Choose a location away from direct engine heat, exhaust, and excessive vibration.
• Ensure the module is mounted securely using the provided hardware.
• Allow for adequate airflow around the unit for cooling.

Figure 3: Side view of the MSD 6AL-2 module, illustrating the cooling fins. Proper mounting ensures these fins can dissipate heat effectively.

5.2 Wiring Connections

Refer to the detailed wiring diagram included with your product for specific connections. General wiring principles include:

• Power: Connect the heavy red wire to a constant 12V battery source and the heavy black wire to a good chassis ground.
• Ignition Switch: Connect the thin red wire to a switched 12V source that is active when the ignition is on.
• Coil Connections: Connect the orange wire to the positive (+) terminal of the ignition coil and the black wire to the negative (-) terminal.
• Trigger Input: Connect the appropriate trigger wires (e.g., magnetic pickup, points, Hall-effect) according to your distributor type.

Figure 4: Detail of a wiring connector for the MSD 6AL-2 module. This shows the type of connectors used for various electrical connections.

6. Operation

The MSD 6AL-2 features adjustable rev limiters to protect your engine and optimize performance.

6.1 Setting Rev Limiters

The module is equipped with rotary switches for setting the 2-step and maximum rev limiters. These are typically located on the top or side of the unit.

Figure 5: Top view of the MSD 6AL-2 module, showing the rotary switches for setting the 2-step and maximum rev limiters. The '1000', '100', and 'CYL' dials are visible for precise adjustment.

• 2-Step Rev Limiter: Use the '1000' and '100' dials under '2 STEP REV LIM' to set the desired launch RPM. This limiter is activated when a specific input (e.g., clutch switch, transbrake) is engaged.
• Maximum Rev Limiter: Use the '1000' and '100' dials under 'MAX REV LIM' to set the absolute maximum engine RPM. This protects the engine from over-revving.
• Cylinder Select: The 'CYL' dial is used to select the number of cylinders for accurate RPM readings and limiting. Ensure this is set correctly for your engine (e.g., 4, 6, 8 cylinders).

Always consult the detailed instructions provided with your module for precise adjustment procedures and recommended settings for your specific application.

7. Maintenance

The MSD 6AL-2 Ignition Control Module is designed for durability and requires minimal maintenance. Regular checks can help ensure optimal performance:

• Wiring Inspection: Periodically inspect all wiring connections for signs of wear, corrosion, or loose terminals. Ensure all connections are secure.
• Module Cleanliness: Keep the module clean and free of dirt, oil, and debris. Use a soft, dry cloth for cleaning. Do not use harsh chemicals or solvents.
• Mounting Security: Verify that the module remains securely mounted and that there is no excessive vibration.

8. Troubleshooting

If you experience issues with your MSD 6AL-2 Ignition Control Module, consider the following common troubleshooting steps:

• No Spark: Check all power and ground connections. Verify the ignition switch input is receiving 12V. Inspect the coil connections and ensure the coil is functioning correctly.
• Engine Misfire: Check spark plug wires, spark plugs, and distributor components. Ensure the trigger input signal is clean and consistent.
• Incorrect Rev Limiter Operation: Verify the rev limiter settings on the rotary switches. Ensure the cylinder select dial is set correctly. Check the activation signal for the 2-step limiter.
• Intermittent Issues: Inspect for loose connections, damaged wiring, or poor grounding. Ensure the module is not overheating due to improper mounting or airflow.

For complex issues, it is recommended to consult a qualified automotive electrician or contact MSD technical support.

9. Technical Specifications

10. Warranty and Support

For warranty information, technical support, or service, please refer to the documentation included with your product or visit the official MSD website. Keep your proof of purchase for warranty claims.