If you are using the Mallory distributor and a coil no ignition box you do need a ballast resistor. Edited May 22, 2012 by Zed Head I am returning the Mallory to Summit as apparently the module is defective. Check a service manual for your vehicle to locate the ignition ballast resistor or loom resistance wire. » » Mallory Unilite Wiring Diagram Mallory Unilite Wiring Diagram Mallory Unilite Wiring Diagram On this website we recommend many designs abaout Mallory Unilite Wiring Diagram that we have collected from various sites home design, and of course what we recommend is the most excellent of design for Mallory Unilite Wiring Diagram. If you must have the key on unplug the distributor at the white connector first. The blue wire already is connected to the - side of coil. One Mallory diagram shows voltage to the electronics inside the Mallory distributor going trhough a ballast resistor.
This is not and I don't know about the mallory or anything else. It is not applicable or intended for use on any emission controlled vehicles operated on highways or roads, unless otherwise noted. All vehicles need a coil, which acts like a capacitor to build enough electrical energy to fire the spark plugs. Clean away any grease, oil and paint from the mounting surface before the connection is made. Thanks for all your input. About the Author Don Bowman has been writing for various websites and several online magazines since 2008. Electronic Distributor Wiring Diagram how to install an electronic distributor car electrical how to install an electronic distributor gregorys manual with a wiring diagram helps thought i d quickly draw up a diagram for a distributor fitted electronic ignition wiring diagram i m fitting bosch electronic ignition to my 253 i thought i had the wiring figured but currently got no spark i m using one of the bosch separate aluminium finned It is Electronic Distributor Wiring Diagram if you desire to have the great images regarding Electronic Distributor Wiring Diagram, click save link to download these pics in your laptop.
The wiring would be like a 280Z, I would guess, if the tachometer is the 280Z type. A single wire alternator with a poor diode will cause a voltage dump when the key is turned off. Locate the spark plug wire on the original distributor cap that that is used to set engine timing. The distributor simply directs the spark to the proper cylinder. I've search this site and others and cannot find an answer. Clean away any grease, oil and paint from the mounting surface before the connection is made.
They are not in any way necessary, but are kinda handy. Looks like you're doing a late 260Z, with the first electronic ignition? For some reason I looked on line at the unilite diagram and it has a resistor in the switch circuit. This can send a 30 or higher volt spike through the system. Either way works for the distributor. Includes degree keys, springs, and instructions to plot advance curves. Then experiment with, and closely monitor, various gaps to achieve maximum performance. Step 4 Note the direction that the rotor is pointing.
Failure to use an ignition ballast resistor will eventually destroy the Ignition Module. The diagram shows three wires from the Mallory distributor. Replace hose if cracked, damaged, or if it is not long enough. The Mallory Unilite distributor uses an infrared light lens and a sensor between which a wheel with tangs, called shutters, passes. Short circuits, high resistance in plug wires, too large a gap in the plugs or sparking the battery are all possible causes of a failed module.
Failure to use resistance wire will eventually destroy the Ignition Module. There are two power supplies to the coil +, one bypasses the resistor during starting and the other goes through the resistor with key on. However, installing or retaining the original ignition ballast resistor allows for easy conversion back to standard ignition. If it stays at 12, your problem is somewhere else, if it goes to zero, look for that other wire. Place a credit card between the infrared light and the sensor.
Left all other wires connected as found. Mark the distributor cap and distributor housing at this spark plug wire position. If it is a 6-volt coil, check the coil side of the resister for voltage with the key on. When you turn the key to Start the power to one circuit turns off and the other on. On my 76 280Z I disconnected the ignition module inside the car completely, but reconnected the blue wire from the ballast resistor to the negative post of the coil that's what it is effectively connected to, but at the ballast resistor instead of the coil. Bowman has a business degree from Pennsylvania State University and was an officer in the U. Check a service manual for your vehicle to locate the ignition ballast resistor or loom resistance wire.
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. This way if you have a box failure or want to remove for any reason such as trouble shooting an ignition problem you can do so without having to cut and splice wires. The infrared light makes a completed circuit when the sensor picks it up. If you use a ballast resistor, connect to 12 volt side of ballast resistor.
When the shutter passes, and the signal is restored, the coil is fired discharging its voltage through the plug wires. Should be able to just put your meter on coil + and see what happens when you turn the key to Start. However, installing or retaining the original ignition ballast resistor allows for easy conversion back to standard ignition. Make sure the rotor blade points to the mark made on the distributor housing from Step 2. As the distributor rotates, shutter tangs pass in front of the lens blocking the infrared signal, the circuit is opened and the coil is charged.