Mallory Ballast Resistor Wiring Diagram

If you use loom resistance wire connect to the coil terminal. 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. The typical automotive ignition system prior to 1974 consisted of a coil and ballast resistor with breaker points to interrupt the current flow when a spark was needed.

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I didnt see anything like a ballast resistor but it could be under the dash.

Mallory ballast resistor wiring diagram. If you use a ballast resistor connect to 12 volt side of ballast resistor. I have just installed a mallory unilite distributor and ballast resistor my question is before i hooked the igniton hot wire up to the resistor with the test light it lite up very bright but after hooking it up to the resistor with the switch turned on the light is very very dime is this normal i hanet been able to try starting it up yet i have no oil or fluid in the tranny this has been a. This video explains how the ballast resistor works. Determine if ballast resistor is needed.

Diagram attached for wiring of points dizzy and coil with ballast resistor. For additional how to tutorials visit our website. 700 in the wire between the ignition switch and the coil terminal. Failure to use an ignition ballast resistor will eventually destroy the ignition module.

This simple system is easy for even the novice mechanic to wire. Connect to the coil. Using the distributor wire harness furnished see figures 1 and 2. The 3 wires coming from the unilite distributor must be connected.

In many of todays vehicles the ballast resistor is not needed. A resistor that has the property of increasing in resistance as current flowing through it increases and decreasing in resistance as current decreases. Of course this meant that there was going to be a little less power getting to the coil. With an ignition ballast resistor install a mallory ignition ballast resistor part no.

Figure 1 unilite wiring diagram using ballast resistor note. Connecting a ballast resistor is a fairly straightforward project but you will want to pay attention to the wiring. Failure to use an ignition ballast resistor will result in the eventual destruction of the ignition module. The job of the ballast resistor was to inhibit current to a level that would not overheat the coil.

All my videos are in 1080p hi def so check that out just an idea on how the gm breaker points style distributor is wired thanks for watching and please subscribe. This simple system is easy for even the novice mechanic to wire. I am planning to replace the distributor with a mallory unilite pointless distributor the instructions emphasize the necessity of either a ballast resistor or a loom resistance wire between the ignition switch and the coil.