What should the fuse be on a 130amp 3G alternator?
In a 130amp 3G the fuse should be a minimum 160amps, preferable 180 or 200amps. As when the stock alternator is loaded way down, it can produce 160amps at about 12.8 volts. This varies from alternator to alternator and is much higher for high output alternators.
When to fuse an alternator and a battery?
There is a guide line set by ABYC (American boat and yacht club) that says if the switch is going to be more than 7″ from a power source: Fuse it. The alternator and batteries are a power source. Except the starter. Also recommended was connecting the Alternator output to a battery not through a switch.
What should the voltage be on an alternator?
Measure the voltage with the engine off. Then have someone start the car and observe the meter. Have the driver rev the engine a little. The voltmeter should slowly climb towards 13 volts, then after a minute or so be up to 13.6-13.8.
What happens when the alternator is not putting out?
Have the driver rev the engine a little. The voltmeter should slowly climb towards 13 volts, then after a minute or so be up to 13.6-13.8. If the meter stays below 12.5 volts with the engine running at fast idle, the alternator is not putting out…Most of the time, an alternator failure will trigger a red dashboard warning light, “alt” or “Batt”…
In a 130amp 3G the fuse should be a minimum 160amps, preferable 180 or 200amps. As when the stock alternator is loaded way down, it can produce 160amps at about 12.8 volts. This varies from alternator to alternator and is much higher for high output alternators.
There is a guide line set by ABYC (American boat and yacht club) that says if the switch is going to be more than 7″ from a power source: Fuse it. The alternator and batteries are a power source. Except the starter. Also recommended was connecting the Alternator output to a battery not through a switch.
What should alternator voltage be with engine off?
Engine running and preferably with all peripherals off (lights, fans, etc.) you should see around 13.5 to 14.2 volts. This voltage varies due to the electrical load the car is placing on the system. July 5, 2016, 11:35pm #3. Measure the voltage with the engine off.
What causes an alternator to over charge a battery?
Measure voltage across the battery with your DMM. You should get 0.5 to 2 volts higher than base voltage. If you are getting more than 2 volts above base voltage, most likely your alternator is over-charging the battery or the battery is faulty. Other potential problems are a faulty voltage regulator or a problem in the charging system wiring.