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4748201 Datasheet(PDF) 2 Page - Mallory performance club |
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4748201 Datasheet(HTML) 2 Page - Mallory performance club |
2 / 4 page 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. 2 www.mallory-ignition.com MALLORY IGNITION + COIL UNILITE® WIRING DIAGRAM USING BALLAST RESISTOR FIGURE 1 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. IGNITION MODULE FEMALE CONNECTOR ENGINE GROUND DISTRIBUTOR WIRE HARNESS PART NO. 29349 IGNITION BALLAST RESISTOR BROWN GREEN RED ALL OTHER WIRES ORIGINALLY CONNECTED TO THE COIL (+) TERMINAL 12V/IGNITION SWITCH |
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