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Mg metro alternator

How do I wire up a mg metro alternator to my kit car? (it is already negative earth)

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Only needs two wires, run a 40 amp cable from the large terminal on the alternator marked +, direct to the positive terminal on the battery or to the battery supply feed to the starter (which ever is easier). Then run a wire from the terminal marked 'ind' to a 5watt bulb, other side of the bulb needs to be wired to an ignition live feed. That's makes it the charge indication light. You need to fit this light, without it the alternator will not charge!!!! Light will come on when you switch the ignition on, and go out when the engine is started. Put a volt meter across the battery, should get a reading of 13.5 to 14.5 volts with engine running. Good Luck.

Posted on Dec 31, 2013


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I'm trying to find out how many wires connect on the alternator for a 1994 Geo Metro, I have the wires plugged into the alternator and then have a black and yellow, black and a green and black wire and I'm...

There are usually only 3 wires to an alternator.
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I need a diagram on how to replace a 2001 chevy metro alternator.

2001 Chevrolet Metro 1.3L MFI SOHC 4cyl

Alternator - Removal & Installation
  1. Before servicing the vehicle, refer to the precautions section.
  2. Remove or disconnect the following:
    Negative battery cable Air cleaner assembly Alternator electrical connectors Accessory drive belt Upper and lower mounting bolts Alternator
To install:
  1. Install or connect the following:
    Alternator and the bolts, do not tighten the bolts at this time
  2. Install the alternator belt and adjust the tension until a deflection of 0.24-0.31 inch (6-8mm) deflection with 22 lbs. (10 kg) of pressure exerted when installing a used belt. On a new belt the belt deflection should be 0.20-0.27 inch (5-7mm) with 22 lbs. (10 kg) of pressure exerted.
    Alternator electrical connectors, then torque the alternator bolts to 17 ft. lbs. (23 Nm) Air cleaner assembly Negative battery cable
  1. Before servicing the vehicle, refer to the precautions section.
  2. Remove or disconnect the following:
    Negative battery cable Accessory drive belt Alternator electrical connectors Alternator
To install:
  1. Install the alternator and hand-tighten the bolts.
  2. Install the alternator belt and adjust the tension until a deflection of 0.24-0.31 inch (6-8mm) deflection with 22 lbs. (10 kg) of pressure exerted when installing a used belt. On a new belt the belt deflection should be 0.20-0.27 inch (5-7mm) with 22 lbs. (10 kg) of pressure exerted.
  3. Install or connect the following: Upper alternator bolt to 18 ft. lbs. (25 Nm) Lower alternator bolt to 40 ft. lbs. (54 Nm) Alternator electrical connectors Accessory drive belt Negative battery cable

    Fig. Exploded view of the alternator-Metro and Prizm models
Hope thats help (remember rated this).

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1989 Gti

Hi I am Vortash the battery light is an indicator to if the Alternator is charging or not .. if the light is on it is saying that it isn't , check the plug and wire connections to the alternator check your earth strap from your negative side of the battery to earth or if it is a continental positive earth car check the + side is attched to the earth securely and cleanly .. check the output from the alternator you should be gettinfg approx 13.5 to 14 .5 volts DC if not switch to ac if you get a reading the rectifier has gone and will need replacing ..( most of the modern alternators come with new brushes attached to a rectifier as a single module ) Check the fan belt tension slipping belt can cause bad charge rate and bring the light on .if you are finding the car is becoming difficult to start the battery going low the fault is realy dead to rights a charging fault.. Hope this helps Vortash

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