How do you wire an alternator with an external regulator?

How do you wire an alternator with an external regulator?

How to Wire an Alternator Voltage Regulator

1. Open the hood of your car.
2. Remove the black battery cable from the car’s battery terminal using a wrench.
3. Locate the voltage regulator.
4. Find the multi-wired harness nearby the alternator and voltage regulator.
5. Insert the plug into the socket on the voltage regulator.

Where does the alternator wire connect to?

Accordingly, where does the alternator wire connect to? This wire connects to the battery, either directly, or via some connection in the main battery supply circuit. Typically, it connects to the battery side of the fuse block.

Where does the alternator exciter wire go?

Voltage goes through the light and down the exciter wire to the alternator. The wire is connected to the “L” terminal of the alternator. The exciter wire is used to turn on the voltage regulator.

What does R and F mean on a alternator?

The R and F terminals are the ‘Reference’ or voltage sense terminal and the ‘Field’ terminal. The color on the spade connectors doesn’t matter, you will have to use a multimeter to determine which connector goes to which pin. The R will be hot at all times while the F will only be hot when the ignition is keyed on.

What does the W mean on an alternator?

The W terminal generally outputs an unrectified AC voltage, the frequency of which is proportional to the engine speed.

What is the sense wire on an alternator?

The sense wire is used to account for the voltage drop between alternator and battery to ensure an accurate charging voltage, i.e. it should be connected to a point which is most representative of battery voltage.

Can I connect the alternator directly to the battery?

Attach a cable directly from the alternator output post to the positive side of the battery. This allows for full output from the alternator to the battery when heavy electrical demands are placed on the alternator.

What is a Remy equipped alternator?

Delco Remy alternators are designed to outperform at low engine RPM, and models equipped with Remote Sense will dramatically improve battery charge time.

How do I know if my Delco Remy alternator?

You can identify the exact model number.

1. Open your car hood and secure it.
2. Look to see if the Delco Remy alternator has vent holes in the side.
3. Look at the rear of the alternator.
4. Read the label on the back of the alternator.
5. Under the label the name Delco Remy is moulded into the aluminum back plate.

What type of alternator do I have?

If your readings are around 14.4V DC then then you most likely have the traditional, non-smart alternator. If your reading is closer to 12.5-13.5V then it’s likely that you have a smart alternator. If you do happen to have a smart alternator this isn’t an issue.

What is the difference between a 10SI and 12SI alternator?

While a DN-series alternator struggles to produce 40 amps, most 10SI alternators deliver a steady 63-amp power supply, and some 12SI units churn out a whopping 94 amps. Although pulleys are similar, a 10SI comes with a metal cooling fan, whereas the 12SI has a larger plastic fan.

What is a 10 Si alternator?

The 10 SI alternator was the most common standard equipment alternator installed on GM cars & light Trucks from the early to late 70’s. It was also used extensively in other applications such as Industrial Equipment, Marine, Agricultural, and other applications. Universal Alternator Mounting Brackets and Accessories.

How do I know if I have a one-wire alternator?

You can verify it’s a one-wire by opening up the case and looking for the letters “SE” on the voltage regulator. If it’s already installed on the vehicle you have to polarize it the first time to get it to work. You just use a jumper wire to supply current to #1 or #2 connector on the side.