PerTronix Ignitor II 91485A User Manual

PerTronix For the car

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440 E. Arrow Highway, San Dimas, CA. 91773

909-599-5955

www.pertronix.com

LIMITED WARRANTY

Pertronix, Inc. Warrants to the original Purchaser of its solid-state ignition system

(product) that the Ignitor, magnet assembly and wiring (components) shall be free from defects
in material and workmanship for a period of (30) months from the date of purchase.

If within the period of the foregoing warranty Pertronix finds, after inspection, that

the product or any component thereof is defective, Pertronix will, at its option, repair such
products or component or replace them with identical or similar parts PROVIDED that within
such period Purchaser:

1.

Promptly Notifies PerTronix, in writing, of such defects.

2.

Delivers the defective products product or component to Pertronix (ATTN: Warranty)
with proof of purchase date; and

3.

Has installed and used the product in a normal and Proper manner, consistent with
Pertronix printed instructions.

THE FORGOING LIMITED WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL

OTHER WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING AND IMPLIED
WARRANTY OR MERCHANTABILITY OR FITNESS FOR A PURPOSE.
THE FURNISHING OF A REPAIR OR REPLACEMENT COMPONENTS SHALL CONSTITUTE
THE SOLE REMEDY OF PURCHASER AND THE SOLE LIABILITY OF PerTronix WHETHER
ON WARRANTY, CONTRACT OR FOR NEGLIGENCE, AND IN NO EVENT WILL PerTronix

BE LIABLE FOR MONEY DAMAGES WHETHER DIRECT OR CONSEQUENTIAL.

12-VOLT NEGATIVE GROUND INSTRUCTIONS

COMMON QUESTIONS AND ANSWERS

Q. The engine will not start or runs rough. What is the problem?
A. Perform Power and Ground Checks. Check all connections to insure that they are
tight, and in the proper location. Check all grounds; if a distributor ground wire was
removed make sure that it was reattached properly. Make sure that the red Ignitor II
wire is supplied with a full 12 volts. The Ignitor II is designed to sense high current
levels, and shut off before damage occurs. Check all wires for shorts, correct polarity
and that the ignition coil’s primary resistance level is acceptable.

Q. . The vehicle will start, but then die. After waiting it will start again. What is wrong?
A. Perform Power and Ground Checks. The Ignitor II may have a “Low Voltage Problem.”
If the voltage supplied to the red Ignitor II wire is insufficient, the system may run for a
period of time, and then shut down as the voltage drops due to engine heat. The period
may vary from minutes to hours depending on available voltage and wiring condition. To
remedy this condition refer to steps 2-4 of the wiring instructions.

Q. How do I check for a “Low Voltage Problem” or determine if I am getting adequate
voltage?
A. Perform Power and Ground Checks. Also, to quickly test for a “Low Voltage Problem”
or for adequate voltage, remove the Ignitor II red wire from the coil positive terminal.
Attach a jumper wire from the battery positive terminal to the Ignitor II red wire. Try
to start the vehicle. If the vehicle starts with this test refer to steps 2-4 of the wiring
instructions for further information.

Q. How do I check my coil for primary resistance?
A. Remove all wires from the coil. Set the ohmmeter to the lowest scale. Attach one
lead of the meter to the positive coil terminal. Attach the other lead to the negative coil
terminal.

Q. May I modify the length of the wires?
A. Yes, you may cut the wires to any length your application requires. You may also add
lengths of wire if needed (20-gauge). Make sure that all wire splices are clean and the
connections are tight.

Q. Will the Ignitor II work with aftermarket capacitive discharge boxes?
A. Yes, the Ignitor II is compatible with most CD boxes in the same respect as points.
Use the CD box wiring instructions for point systems and treat the Ignitor II black wire
as a point wire. The Ignitor II red wire should be attached to the 12-volt power source.

Q. Will the electronic shift assist in an OMC boat work with the Ignitor II?
A. The Ignitor II will work with all OMC stern-drive applications, when our “diode fix” is
used. If you’ve purchased a kit that didn’t include the “diode fix” diagram, call our tech
line.

Q. How can I receive additional help?
A. Check our web site for current trouble shooting tips and up to date technical
information. Log on to www.pertronix.com. You may also contact our tech line at
(909-547-9058)

FOR PART NUMBERS: 9HO142, 9HO-161A, 91483A, 91484A, 91485A

1. PRIOR TO INSTALLATION TURN IGNITION SWITCH OFF OR

DISCONNECT THE BATTERY

2. Remove distributor cap, rotor and dust cover (if eqquipped) from

distributor. Do not disconnect the spark plug wires from cap. Examine
parts for excessive wear. Replace as needed

3. Remove the snap ring that retains the vacuum advance arm.
4. Remove the screws that retain the vacuum advance cannister to the

distributor housing and remove the vacuum advance cannister.

GENERAL INFORMATION

1. IMPORTANT: Read all instructions before starting installation.
2. DO NOT USE WITH SOLID CORE SPARK PLUG WIRES.
3. The Ignitor II ignition can be used in conjunction with most ignition coils rated at

0.45 ohms or greater.

4. All external resistors must be removed to achieve optimum performance from the

Ignitor II ignition system.

5. The Ignitor II is compatible as a trigger for most electronic boxes.

DISTRIBUTOR DISASSEMBLY

IGNITOR II INSTALLATION
1. Point style distributors only:

The Ignitor II does not require any modifications to distributor. Therefore
retain all parts and hardware for backup.

Disconnect point wire from negative (-) terminal of the coil.

Vacuum advance distributors only: Remove the snap ring that retains the
vacuum advance arm.

Install the new Ignitor II plate assembly into distributor. Fasten the ground
wire and plate assembly into place using the original screws.

Note:

Ground wire is not included on Non vacuum advance distributors.

Vacuum advance distributors only: Install the vacuum advance cannister.
Make sure to place the vacuum advance arm over the pin on the Ignitor II
plate and secure it with the snap ring that was removed.

Tip: For easier

vacuum advance installation remove Ignitor II module from the new
plate assembly.

Insert wires and gommet into the slot/hole on the distributor housing.
Remove the excess wire from inside the distributor housing by gently
pulling the wire through the grommet. Make sure wires do not interfere
with any moving part.

Go to magnet sleeve installation.

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