PerTronix Ignitor II 9MR-148LS - 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)
Fig. 3
• PART NUMBERS 9LU-168LS & 9LU-169LS, Adjust the distributor timing micro
adjustment to roughly the middle of the travel. Position the Ignitor plate over point
pivot pin and line up hole on adapter plate to screw hole on the breaker plate.
Confirm that the Ignitor plate is flat and fits without modifications. Fasten the plate
into place using the original point screw. No air gap adjustment required.
• PART NUMBER: 9LU-241LS, Remove the module from the adapter plate, Position
the adapter plate over the point screw holes on the breaker plate. Note: Both point
screw holes will be used to secure adapter plate to the breaker plate. Confirm that
the Ignitor plate is flat and fits without any modification. Fasten the plate in place
using the screws provided. Install the module onto the adapter plate and secure
using the nuts and washers provided. No air gap adjustment required.
• PART NUMBER 9MR-148LS, Remove the screws retaining the breaker plate and
remove the complete breaker plate assembly from the distributor housing. Position
the Ignitor II plate into distributor housing. Line up cutout on the Ignitor plate to the
wire exit hole in the distributor housing. Fasten the plate in place using the original
screws. No air gap adjustment required.
• PART NUMBER 91762LS, Position the adapter plate over the point screw holes
on the breaker plate. Note: Both point screw holes will be used to secure adapter
plate to the breaker plate. Confirm that the Ignitor plate is flat and
fits without any modification. Fasten the plate in place using the
screws provided.
• The original grommet must be modified for use with the Ignitor.
Cut from above each wire down into the grommet, making two
parallel cuts. (See figure 2).
• Remove both point wires from grommet, and insert both Ignitor
wires in the same manner.
• PART NUMBER 91763LS, Position the Ignitor plate over point pivot pin and line up
hole on adapter plate to screw hole on the breaker plate. Confirm that the Ignitor
plate is flat and fits without modifications. Fasten the plate into place using the
original point screw. No air gap adjustment required.
• PART NUMBER 92563LS, Position the Ignitor plate over the condenser mounting
point of the breaker plate. There are both single
and dual screw condenser mounting configurations
(See Figure 2). The Ignitor plate fits over both types.
Confirm that the Ignitor plate is flat and fits without
any modification. Fasten the plate in place using
the provided screw or screws. NOTE: IAP Series
distributors require the removal of the point adjustment
eccentric screw.
• No air gap adjustment required.
• Distributor ground wire needs to be re-connected when
the Ignitor is installed.
• CAUTION: Care must be taken to insure wires do not
interfere with moving parts. Use the provided zip tie to
secure wires to the original bracket.
• Reuse the original grommet by cutting an exit hole for
both wires. Insert the wires through the new hole.
Figure 2
• PART NUMBER 91241LS, Position the Ignitor plate over the condenser screw hole
and one of the point screw holes. Confirm that the Ignitor plate is flat and fits without
any modifications. Attach the ground wire to the plate using one of the provided
screws. Attach the other end of the ground wire to the perimeter breaker plate
screw. Use the provided feeler gauge to set the module to cam air gap. Use the
second screw to hold the plate firmly in place.
Insert the Ignitor red and black wires
through the hole in the base of the distributor housing. Install grommet over the
Ignitor wires and into distributor housing.
7 CAUTION: Care must be taken to insure wires do not interfere with moving parts.
Use the provided zip tie to secure wires to the original bracket.
8 Install distributor rotor and cap. Note: Ignitor Kit #9LU-146LS includes a new rotor.
Make sure all spark plug wires are securely attached.
Warning! DO NOT USE
WITH SOLID CORE SPARK PLUG WIRES.
9 Go to Wiring Instructions.