PerTronix Ignitor II 9MR-LS1 - Manual (Page 2)

POWER & GROUND TESTS
It is imperative that the power and grounds be checked as part of the installation
procedure. After installing the kit within the distributor and with the distributor in
the engine, using a digital multi-meter measure the resistance from the aluminum
plate holding the module to battery (-). The net resistance must be less than 0.2
ohms. Set meter to lowest ohms setting. The net resistance is the meter reading
minus the resistance of the meter leads. If the net resistance is greater than 0.2
ohms the source of the faulty ground must be found and fixed. Usually the source
of the bad ground is easily found by holding one probe on an original location and
moving the second probe toward the static probe. Where the resistance drops
identifies the source.
Maximum resistance from Ignitor plate to battery negative terminal. 0.2 ohms
EXAMPLE:
Resistance from Ignitor plate to battery negative (-) terminal.
0.4 ohms
Resistance of meter leads 0.2 ohms
After subtracting meter lead resistance, your total resistance is: 0.2 ohms
VOLTAGE TEST
1. Do not disconnect wires from Ignition coil and place ignition switch in the “off”
position.
2. Connect jumper wire from negative (-) terminal of the coil to a “good” engine
ground.
3.Connect voltmeter red lead to the positive (+) terminal of the coil and the black lead
to a “good” engine ground.
4.Turn “ON” the ignition switch and note voltage reading on the voltmeter. Quickly
read the voltage and turn ignition “OFF”. Leaving ignition “ON” for an extended
period could result in permanent damage to the Ignitor.
5. SEE CHART BELOW FOR SPECIFICATIONS.
Note: Low voltage can be caused by poor connections, poor contacts in the
ignition switch, ballast resistor, and or a resistance wire in the wiring harness
(Factory Installed).
Minimum Maximum
Ignition Switch “ON” 8.0V N/A
Cranking 8.0V N/A
Engine Running N/A 16.0V
WIRING INSTRUCTIONS
1. The Ignitor II ignition can be used in conjunction with most ignition coils rated
at 0.45 ohms or greater. For optimum performance purchase and install the
Flamethrower II high performance coil.
2. Attach the black Ignitor II wire to the negative coil terminal. Attach the red Ignitor II
wire to the positive coil terminal. (See Figure 3)
A. Recommended Installation: Many vehicles came equipped with ballast resistor or
resistance wire. To achieve optimum performance from the Ignitor II ignition system, we
recommend removal of these components.
• To remove a ballast resistor, (normally white ceramic blocks 3 to 4 inches long), dis-
connect all wires on both ends of the ballast resistor. Remove the resistor from the
vehicle and splice the disconnected wires together at a single point.
• To remove a resistance wire, trace the coil power wire, which was previously con-
nected to the positive coil terminal, back to the fuse block. Bypass this wire with a
12-gauge copper stranded wire.
B. Alternative Installation: The Ignitor II can also be installed in applications retaining
the ballast resistor or resistance wire.
• Attach the Ignitor II black wire to the negative coil terminal. Attach the Ignitor II red
wire to the ignition side of resistance, or any 12 volt ignition power source.
3. Check to insure that the
polarity is correct, and that
all connections are tight.
4. Re-connect the battery.
5. Perform the Power and
Ground tests. Refer to the
Power and Ground test
procedure.
6. Start the engine and allow
it to reach normal operating
temperature. Check ignition
timing, and adjust to the
desired setting.
+ -
To Ignition
FIGURE 3
(WITHOUT EXTERNAL RESISTOR)
IGNIT
OR
IGNIT
OR
FIGURE 5
(Large Cam 1.00”)
(Measured from point to point)
FIGURE 4
(Small Cam 0.715”)
(Measured from point to point)
FIGURE 6
IGNIT
OR
6 Cylinder Distributors Only
(S112AX & BX DISTRIBUTORS ONLY)
1 Remove distributor cap and rotor from distributor. Do not disconnect the spark plug
wires from the cap. Examine parts for excessive wear. Replace as needed.
2 Remove the point wire from the negative coil terminal.
3 Remove and retain the point and condenser. Installing the Ignitor does not alter
the internal configuration of your distributor. Therefore, the point, condenser and
hardware can be used as backup.
4 Clean all dirt and excess oil from the breaker plate and point cam.
5 6 cylinder distributors only (S112AX & BX):
• The adapter plate needs to be installed with the part number on the adapter plate
facing down.
• Use figure 6 to mount Ignitor to adapter plate.
• Use figure 6 to install adapter plate on to distributor.
6 Secure adapter plate with provided screws
7 Note: A wire tie is included to keep Ignitor wires from rubbing against any moving
parts.
8 Insert both wires through the wire tie and wire access hole in the side of the
distributor housing.
9 Pull the rubber grommet into place. Check to insure that the wires do not contact
any moving parts.
10 Replace distributor cap and rotor. Make sure all spark plug wires are securely at-
tached. Warning! DO NOT USE WITH SOLID CORE SPARK PLUG WIRES.