PerTronix Ignitor 1281 - 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. Eight cylinder engines require a minimum of 1.5 ohms of primary resistance. Do not remove resistors if the
coil primary resistance is less than 1.5 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: 1281
DISASSEMBLY
1. PRIOR TO INSTALLATION TURN IGNITION SWITCH OFF OR DISCONNECT THE BATTERY
2. Remove the distributor cap, and rotor. Do not disconnect spark plug wires. Examine cap and rotor for wear
or damage. Replace as needed.
3. Disconnect the point wire from the negative (-) terminal of the coil.
4. Remove the point wire, point, and condenser from the distributor.
5. The Ignitor does not require any modification to the distributor. Therefore the point, condenser and hardware
can be used as backup.
6. Clean all dirt and excess oil from the breaker plate and point cam.
IGNITOR INSTALLATION
1. Insert the Ignitor black and red wires through the distirbutor housing verifying the grommet is seated
properly.
2. Install the Ignitor module using the provided hardware in the same manner as a set points. NOTE: 1281 kits
use the points adjustment screw hole as a pilot for the Ignitor locating pin. Confirm the mounting plate is flat
and fits without any modifications. See Figure 1.
3. If the distributor ground wire was removed during the installation process be sure it is re-attached securely.
NOTE: If the ground wire is missing, one needs to be installed and attached from the point breaker plate to the
distirbutor housing. See Figure 1.
4. Place the magnet sleeve over the distributor shaft, and onto point cam. Press down firmly to insure magnet
sleeve is fully seated. NOTE: Make sure that the Ignitor module and magnet sleeve are level. See Figure 2.
5. Set the air gap between the module and magnet sleeve using the provided plastic feeler gauge (0.030”
thick). This done in the same manner as points.
6. Reinstall the rotor, and the distributor cap. Make sure all spark plug wires are securely attached.
7. See Wiring Instructions.
Magnet Sleeve
Must be level with
Ignitor on top.
Ground Wire Location
Figure 1
Figure 2