PerTronix Ignitor MR-163 - Manual

12-Volt Negative Ground Installation Instructions
Page 1 of 4
CAUTION!!! Before installing, please read the following important information....
909-599-5955 www.pertronix.com
12-Volt Negative Ground Installation Instructions
Page 1 of 4
CAUTION!!! Before installing, please read the following important information....
909-599-5955 www.pertronix.com
1. The Ignitor is designed for 12-Volt negative ground systems.
2. Leaving the ignition “ON” with the engine “OFF” for an extended period could result in permanent damage to
the Ignitor.
3. See Chart on back page for coil recommendations.
4. Four & Six cylinder engines require a minimum of 3.0 ohms of primary resistance. Do not remove resistors if
the coil primary resistance is less than 3.0 ohms.
5. If your Ignition coil has the recommended primary resistance, remove or bypass all external resistors.
6. The Ignitor is compatible as a trigger for most electronic boxes.
12-Volt Negative Ground Installation Instructions
Page 1 of 4
For Part Number: MR-163
DISASSEMBLY
1. PRIOR TO INSTALLATION TURN IGNITION SWITCH OFF OR DISCONNECT THE BATTERY
2. Remove distributor cap and rotor from distributor. Do not disconnect spark plug wires from cap. Examine cap
and rotor for wear or damage. Replace as needed.
3. Remove the point wire from the negative (-) terminal of the Ignition coil.
4. Remove screws that retain the original breaker plate and lift out the entire breaker plate assembly from the
distributor. Installing the Ignitor does not alter the internal configuration of your distributor. Therefore, the
points, condenser and hardware can be used as backup.
5. Clean all dirt and excess oil from the point cam.
IGNITOR INSTALLATION
6. Place the Ignitor module into the distributor housing. Align the “X” mark on the plate to the wire exit hole on
the distributor housing. See figure 1. Fasten the plate into place using the original screws.
7. Install magnet sleeve over the distributor shaft, onto point cam. Rotate the sleeve until a slight locating
position is felt before applying pressure. Press down firmly insuring sleeve is fully seated.
8. Module and magnet sleeve air gap is not adjustable.
9. Insert wires through the wire exit hole in distributor housing. Pull the rubber grommet into place. Make sure
wires do not interfere with any moving parts.
10. Reinstall the rotor, and the distributor cap. Make sure all spark plug wires are securely attached.
11. See Wiring Instructions.
Figure 1