Diyvehiclerepair
- Where is the ballast resistor located?
- How do I know if I have a ballast resistor?
- What does a Dodge ballast resistor do?
- What is a ballast resistor for a ignition coil?
- What causes a ballast resistor to fail?
- What's the difference between a ballast and non ballast coil?
- Does HEI distributor need ballast resistor?
- Do I need a ballast resistor with MSD ignition?
- Does a ballast resistor reduce voltage?
- Can a bad distributor cause a car not to start?
- What is an ignition ballast?
- What is the function of capacitor in a coil ignition system is?
Where is the ballast resistor located?
Note: Ballast resistors are usually located bolted to the firewall if your distributor and/or coil is at the rear of the engine. If your distributor is located near the front or side of the engine in the case of an inline-4 cylinder, then it's probably right near the ignition coil or distributor.
How do I know if I have a ballast resistor?
To test your ballast resistor you need an ohm meter or multimeter set to ohms. Remove the connectors from both sides of the resistor. The ohms should read between 1.8 and 5 ohms. You should be getting 9 volts to the positive side of the coil.
What does a Dodge ballast resistor do?
In simple terms, the ballast resistor in a Mopar limits the amperage, or current flow, through the coil while the engine is running, thereby extending the life of the coil and breaker points of the distributor.
What is a ballast resistor for a ignition coil?
A Ballast Resistor is an electrical device that reduces voltage to the coil so that more energy is available for the spark plugs during starting.
What causes a ballast resistor to fail?
The resistance through the ballast resistor varies with current flow which varies with engine rpm. This naturally causes the resistor to expand and contract from heat. That's why they eventually fail.
What's the difference between a ballast and non ballast coil?
A ballast coil is designed to produce the same spark output, but with only 6 to 9 volts on the input. With a non-ballast coil, the input to the coil is the same, 12 volts, whether the engine is running, or being cranked by the starter motor.
Does HEI distributor need ballast resistor?
When using HEI, the distributor requires a 12 volt feed. 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. ... This means that there is no power on the “RUN” circuit when the ignition switch is in the “CRANK” mode.
Do I need a ballast resistor with MSD ignition?
Late-model electronic ignitions or an MSD Ignition do not require the ballast. If you are looking to upgrade your stock coil, or want to compliment the performance of your MSD Blaster Ignition, MSD 5, 6, or 7, the Blaster Coil line is the right choice. Our Blaster Coils are designed for improved spark output!
Does a ballast resistor reduce voltage?
The ballast resistor, supplies the needed voltage during the start up, and then immediately after the arc is established, it reduces the voltage in addition to regulating the current flow.
Can a bad distributor cause a car not to start?
A faulty engine distributor won't spark, which will either prevent the engine from starting or cause it a running engine to fail. ... The distributor also disburses current to the spark plugs initiating engine performance.
What is an ignition ballast?
The ballast resistor allows the ignition system to operate at a lower voltage until the engine starts. ... The ballast resistor then functions to regulate the voltage going to the ignition system to avoid additional wear on the system.
What is the function of capacitor in a coil ignition system is?
Capacitor: A capacitor is made up of two metal plates separated by air. It is connected in parallel to the contact breaker to prevent damage to it caused by the rapid drop in current and magnetic field. In this way, it facilitates the generation of high voltage through ignition coil required for the spark.
