4755101 Datasheet, PDF (2/4 Pages) Mallory performance club – UNILITE® DISTRIBUTOR

WIRING PROCEDURE
The 3 wires coming from the UNILITE^® Distributor must be con-
nected using the distributor wire harness furnished (see Figures
1 and 2).
RED WIRE:
If you use loom resistance wire, connect to the coil
(+) terminal.
If you use a ballast resistor, connect to 12 volt side
of ballast resistor.
GREEN WIRE: Connect to the coil (–) terminal.
BROWN WIRE: Connect to engine block ground. Clean away any
grease, oil and paint from the mounting surface
before the connection is made.
ADDITIONAL CONNECTIONS
Vacuum advance applications: Connect original vacuum hose to the
UNILITE^® Distributor vacuum chamber. Replace hose if cracked, dam-
aged, or if it is not long enough. If the previous distributor was not
equipped with vacuum advance, connect a vacuum hose to a ported
vacuum outlet on the carburetor.
Tachometer operation: Connect wire or wires as recommended
by the actual tachometer manufacturer.
STARTING ENGINE
CAUTION: Be sure all tools, wires and miscellaneous objects are
clear of moving engine parts and extreme heat before staring the
engine.
Step 1
Recheck all wires and connections to make sure they are correct. Check
and clean, or replace spark plugs. If replacing spark plugs, use types
recommended by the engine manufacturer.
Vacuum advance applications: Disconnect the vacuum hose to UNILITE^®
Distributor vacuum chamber at the carburetor and temporarily plug this
carburetor fitting.
Step 2
Connect a timing light and start the engine. If the engine fails to start,
rotate the distributor in small increments clockwise or counterclockwise
until the engine starts. Do not exceed more than ten degrees of distributor
housing rotation in either direction.
Step 3
Set timing as recommended by the engine manufacturer, then tighten
distributor hold down clamp. Check timing again. If timing has moved,
repeat Step 3.
Vacuum advance applications: Reconnect the vacuum hose between the
UNILITE^® Distributor vacuum chamber and the carburetor.
FIGURE 1 UNILITE^® WIRING DIAGRAM USING BALLAST RESISTOR
12V/IGNITION
SWITCH
ALL OTHER WIRES ORIGINALLY CONNECTED
TO THE COIL (+) TERMINAL
RED
DISTRIBUTOR WIRE HARNESS
PART NO. 29349
IGNITION BALLAST
RESISTOR
IGNITION MODULE
FEMALE CONNECTOR
ENGINE
GROUND
BROWN
GREEN
NOTE: The purpose of an ignition ballast resistor between the ignition switch (12V) and the ignition coil positive
terminal is to restrict current flow through the ignition coil. Failure to use an ignition ballast resistor will
eventually destroy the Ignition Module.
EXCEPTION: If your vehicle is equipped with a HYFIRE^® Electronic Ignition Control or similar aftermarket ignition
control, use the wiring procedures stated in the instructions included with the ignition control.
To prevent false triggering and possible premature ignition failure, you must use suppression type (carbon
core, spiral core, or radio suppression core) spark plug wire.
DO NOT USE SOLID CORE (COPPER CORE OR STAINLESS STEEL CORE) SPARK PLUG WIRE WITH ANY ELECTRONIC
IGNITION SYSTEM.
+
COIL
2
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