1972 454 Corvette Ignition Coil Ballast Resistor Wiring Diagram
Test voltage at wire from ignition to coil +. This product can expose you to chemicals including cadmium which is known to the state of california to cause cancer on birth defects or other reproductive harm.
☑ Coil Ballast Resistor
I didn't see anything like a ballast resistor but it could be under the dash.
1972 454 corvette ignition coil ballast resistor wiring diagram. The job of the ballast resistor was to inhibit current to a level that would not overheat the coil. In order to achieve this the ballast resistor or the resistance wire must be removed from the circuit and replaced with a pure 12 gauge feed wire. The ballast resistor is commonly found in older vehicles, because they did not have the benefit of circuit boards found in most of today’s vehicles.
The 75 & up corvette eliminated the ballast resistor and resistance wire altogether. Discussion in 1960 1966 started by ol betsy dec 20 2006. A resistor wire or ballast resistor may or may not be included in the original equipment.
The connection was actually under the dash or in the harness under the hood. The third concerns the starter 12 volt override and the ignition switch. 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.
When using hei, the distributor requires a 12 volt feed. The yellow bypass wire will also need to be put back if it was eliminated. I have a 69 convertible with 307 (edelbrock performer package) and i have a pertronix ignitor electronic ignition upgrade (including coil) to install to finally eliminate points/condensor.
Ignition coil to ballast resistor lead wire. The coil you have says to run a resistor. If not a ballast resister can be added in series with the feed wire to the coil.
The transistor ignition system features a specially designed distributor, ignition pulse amplifier, and a special coil. (if battery has 12+) if 12 at coil, mount resistor on firewall (they get hot),. Coil figure 1 unilite® wiring diagram using ballast resistor note:
This simple system is easy for even the novice mechanic to wire. The bypass wire sent a full 12 volts to the coil but only during starter operation. Over time, the ballast resistor can be damaged by normal wear and tear, so there are a few things to look for when you suspect a bad or failing ballast resistor needs servicing.
Ignition coil ballast resistor wiring diagram with ignition coil ballast resistor wiring diagram, image size 609 x 360 px, and to view image details please click the image. Make sure this wire stays hot while the engine is turning over, if this is in a 85 truck use the wire that hooked to the origional distributor. The directions indicate i need to eliminate the resistor wire to get the full 12 volts to the coil.
Specializing in c3 chevrolet corvette parts since 1977. Chrysler used the ballast resistor. This should be simple, run one wire from a switch on hot thru a ballast resistor (available from napa for about 15 dollars) to the positive side of 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. How old is your corvette's wiring? 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.
Some customers report that bypassing the ballast resistor by disconnecting the ballast feed wire ( from the starter solenoid or built into the loom) and providing a direct 12 volt feed from the starter solenoid/relay or fuse box to the ignition coil has proved to. A resistor that has the property of increasing in resistance as current flowing through it increases and decreasing in resistance as current decreases. Factory harnesses originally supplied with your corvette had a 10 year service life.
Here is a picture gallery about ignition coil ballast resistor wiring diagram complete with the description of the image, please find the image you need. This went from the ignition switch to the positive side of the coil. 20, 30, maybe 40+ years.
Failure to use an ignition ballast resistor will eventually destroy the ignition module. A resistor wire is used in place of a resistor. 1972 corvette diagram, electrical wiring 1972.
This simple system is easy for even the novice mechanic to wire. I just want to confirm that the resistor is necessary. Corvette parts, services and accessories for your classic car.
For more information, visit www.p65warnings.ca.gov. Two resistance wires are also used in the circuit; Diagram attached for wiring of points dizzy and coil with ballast resistor.
One as a ballast between the coil negative terminal and ground, while the other resistance wire provides a voltage drop for the engine run circuit Optimists think the glass is half full. Diagram wiring diagram ballast resistor ignition coil full version hd quality.
The second concerns the gauge of wire feeding the hei distributor. Original harnesses were made with copper strand housed in plastic. 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.
The only truly definite way of discovering which your car has is by testing the voltage at the coil lead feed with the ignition on. If you have 9 or so, it may be resistance wire. When the points were closed, there was about 9 volts at the coil positive.
Gm and ford used a resistor wire.
1972 350 coil wiring.? Page 2 CorvetteForum Chevrolet Corvette Forum Discussion
[DIAGRAM] Farmall M Distributor Diagram FULL Version HD Quality Distributor Diagram
☑ Coil Ballast Resistor
PerTronix Install Page 3 MercedesBenz Forum
73 Corvette Wiring Diagram Coil Wiring Diagram Networks
☑ Coil Ballast Resistor
20 New 1955 Chevy Ignition Switch Wiring Diagram
1972 Chevy Truck Ignition Switch Wiring Diagram
70 Cuda Wiring Diagram Free Download Wiring Diagram Schematic
Shiftworks In Dash Tach Need help 68 Chevelle Tech
Ballast resistor ? The Ford Torino Page Forum
67 Gm Ignition Switch Wiring Diagram Wiring Diagram Networks
73 Corvette Wiring Diagram Coil Wiring Diagram Networks
☑ Coil Ballast Resistor
Pertronix Ignition Wiring Diagram Wiring Diagram And Schematic Diagram Images
C2 Starter solenoid wiring connections CorvetteForum Chevrolet Corvette Forum Discussion
C2 Starter solenoid wiring connections CorvetteForum Chevrolet Corvette Forum Discussion
C2 Starter solenoid wiring connections CorvetteForum Chevrolet Corvette Forum Discussion
Ballast resistor on a 73? CorvetteForum Chevrolet Corvette Forum Discussion