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Have a alternator that is 6 inch across and 4 inch back to front no information on alt what is its voltage and amperage?
Wiki User
∙ 10y ago
Look very closely for a serial number stamped on the unit. The suggested course of action is to take the alternator to an auto parts store to see if they can recognize what vehicle the alternator should belong to. Automotive alternators are three phase and should have a full wave diode bridge concealed within the alternator housing. If you open the alternator case, the diode bridge will have diode numbers or a number stamped on the bridge network. Cross referencing this number to other diode bridges will tell you what amperage the alternator should be able to output. If you find a number there let the automotive parts store see if they can find a substitute for it.
Wiki User
∙ 10y ago
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How do you measure the current by using multimeter?
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Why does the engine shut down when the battery cable is removed on your 2005 ford focus?
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How can you tell if its the battery or alternator that's not working on a car?
Start car. Turn on all lights, blower etc., that you can. Read voltage across battery terminals. If voltage is 13.5 or more then your alternator is okay. This assumes you have clean connections, good cables.
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How does voltage regulator works?
A Voltage Regulator is just a Zener Diode that is wired across the alternator terminals. ... no. Doing this will blow the zener - don't try it at home or anywhere else.
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Toyota gt four alternator wont charge battery?
Check fuses first. If fuses are good, check the voltage from the negative battery cable to where the wire bolts onto the back of the alternator. (With the engine running). If you can't reach the back of the alternator, then measure across the posts of the battery. Voltage should be about 14 volts DC. If lower than that, replace the alternator. When you replace an alternator, it's a good idea to replace the battery, as a precaution.
