PerTronix Flame-Thrower Cast Distributors D182604 - 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 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
WIRING
The Flame-Thrower distributor can be used in conjunction with most
Ignition coils rated at 0.45 ohms or greater. For optimum perfor mance
purchase and install a 0.6 ohm Flame-Thrower II coil or 0.45 ohm HV high
performance coil.
1. Determine the proper wire length, and attach the provided termi-
nals. (Use a designated wire crimping tool to achieve an
adequate connection)
2. Attach the Red wire to the coil positive terminal or a 12-volt igni-
tion source. Note: Original ignition wire must be connected to the
(+) positive side of the Ignition coil.
3. Attach the Black wire to the coil negative terminal.
4. Check to insure correct polarity and that all connections are tight.
5. Reconnect the battery negative cable.
FINAL ADJUSTMENTS
1. Plug vacuum port to vacuum advance canister before setting initial
timing.
2. Start the engine and set the initial timing.
3. Tighten the distributor hold down clamp.
4. Connect the vacuum hose to the vacuum advance canister.
3. Turn the distributor drive tang so that it lines up with the distributor
drivshaft slot.
4. Install the distributor driveshaft spring.
5. Set the distributor into the engine. The distributor hold-down should
sit completely flat on engine block.
6. Place the distributor cap onto the housing.
7. Turn the housing so that the terminal, that represents the first
cylinder in the firing order, lines up with the rotor contact terminal.
8. Tighten the hold down and slightly tighten the distributor clamp.
Once the ignition timing is adjusted the distributor clamp should be
tightened completely.
Note: Hold down clamp must be free of paint
and corrosion, this will insure that a proper ground is made to the
engine block.
9. Clip down the distributor cap and install the spark plug wires in the
proper firing order. Beginning with the number one cylinder move
clockwise 1 - 4 - 3 - 2.
WARNING!!! DO NOT USE WITH SOLID CORE
SPARK PLUG WIRES OR COIL WIRE.
NON VACUUM ADVANCE DISTRIBUTOR
10. Locate and remove the vacuum hose that was previously attached
to the vacuum advance canister. Plug off the vacuum port.
VACUUM ADVANCE DISTRIBUTOR
11. Locate and temporarily plug the end of the vacuum hose that
was previously attached to the vacuum advance canister. After
setting initial timing the hose will be unplugged and attached to the
vacuum advance on the distributor.
FINAL ADJUSTMENTS
1. Start the engine and set the initial timing.
2. Tighten the distributor clamp.