Pertronix Ignitor II 91247XT User Manual download pdf

GENERAL INFORMATION

1. IMPORTANT: Read all instructions before starting installation.

2. DO NOT USE WITH SOLID CORE SPARK PLUG WIRES.

3. This kit is designed to fit N-Series Ford Tractors with front mount distributors.

4. Some modifications to the original distributor is necessary.

The Ignitor II ignition can be used in conjunction with most ignition coils rated at

0.45 ohms or greater.

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

Ignitor II ignition system.

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

8. See our website (www.pertronix.com) for the latest product information.

12-VOLT NEGATIVE GROUND INSTRUCTIONS

REMOVING THE DISTRIBUTOR.

440 E. Arrow Highway,

San Dimas, CA. 91773

909-599-5955

www.pertronix.com

POWER & GROUND TESTS

It is imperative that the power and grounds be checked as part of the installation

procedure. After installing the Ignitor module and the distributor and with the

distributor in the engine, use a digital multi-meter to 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 net resistance is: 0.2 ohms

VOLTAGE TEST

1. (Do not disconnect wires from Ignition coil). Place ignition switch in the “off” posi-

tion.

2. Connect a jumper wire from negative (-) terminal of the coil to a good engine

ground.

3.Connect the voltmeter red lead to the positive (+) terminal of the coil and the black

lead to a good engine ground.

4.Turn the ignition switch to the “on” position and note voltage reading on the voltme-

ter. 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

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:

Promptly Notifies PerTronix, in writing, of such defects.

Delivers the defective products product or component to Pertronix (ATTN: Warranty) with proof

of purchase date; and

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.

1. TURN IGNITION SWITCH OFF OR DISCONNECT THE BATTERY.

2. Disconnect the coil power wire.

3. Remove the spark plug wires from the distributor cap.

4. Remove the coil by unsnapping the retainer bail.

5. Unsnap and remove the distributor cap.

6. Note the position of the rotor so that the distributor can be reinstalled in

the same position. Remove the rotor.

7. Remove the two bolts that hold the distributor to the block.

8. Remove the distributor.

For Part Number: 91247XT

REMOVING THE BREAKER PLATE & CONDENSER

1. Remove the breaker plate retaining ring.

2. Remove the breaker plate hold down screw.

3. Remove the condenser.

4. Remove the shim washer from the distributor shaft.

5. Remove the distributor shaft and advance mechanism.

6. Remove the condenser.

7. Check the distributor for cracks and excess wear.

IGNITOR II INSTALLATION.

1. Set the adapter plate into the distributor. Insert the provided hold down

stud through the plate and distributor housing.

2. Install the timing adjustment slide over the stud. Install the provided lock

nut.

1 2

Summary of Contents

Page 1 - www.pertronix.com

GENERAL INFORMATION1. IMPORTANT: Read all instructions before starting installation.2. DO NOT USE WITH SOLID CORE SPARK PLUG WIRES. 3. This kit is

Page 2 - ILLUSTRATION C

COMMON QUESTIONS AND ANSWERSQ. The engine will not start or runs rough. What is the problem?A. Perform Power and Ground Checks. Check all connections

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