Alternator internal electrical diagram

[chrisdoesitbetter]

hello everyone, pulled apart an alternator i got from a wreckers, and i pulled it apart only to find that the stator had wires running to the magnetic coil. does anyone have a diagram or know where they go

[wamboin23]

stator should be terminated onto rectifier, through diodes... which magnetic coil do you mean? the rotor?

[chrisdoesitbetter]

na the big cylinderical copper thing the rotor slips into, its soldered to the diode pack at the back of the assembly

[VrWagz1]

???Not sure what your talkin bout, but im sure they are setup just like a 3 phase full(or maybe half wave) wave rectifier. Google that up for a pic and you can prob guess whats goin on

[chrisdoesitbetter]

its kinda hard to explain... i mean the stator (big copper thing that the rotor slips in) is soldered to the retifier assembly (diode pack). when i pulled it apart two wires were broken. would it matter where they solder onto. would polarity matter as they are diodes and only allow electricity flow in the convention way.

[VrWagz1]

yes it will matter and you may damage your battery, ecu, insturments, if you get it wrong ans you will put AC through everything. If they are unmarked then it is going to be tricky to tell where they came from, i see your dilema.
I'll add these attachments of rectifiers i have and one of them should be somwhat similar to whats happening in the stator windings so you can see. My guess is it will be a half wave that has 3 diodes because the alt usually only has 1 active wire going to the battery. If it has 6 then it will be one of the full wave pics. In the pics imagine the resistor/load as the battery.
If it has 4 diodes then its a single phase bridge rectifier, google that for a pic, but unlikely it is single phase.

If you can find a star point and the ins and outs of the diodes then you should be able to meter it all out ok. If it is a halfwave 3 phase the output where the main out wire would bolt onto is where the common for all the cathodes(blocking side) of the diodes are

Hope this makes some sort of sence???????

Edit, it can also have more phase's ect, ike it can be 6 phase half wave too(so for the half wave one just imagine another 3more diodes in there with 3 more windings attached ect...), it dosnt have to be 3, it depends how many wires you have hanging out there, i have never pulled one down to see so im shooting blind here.

[wamboin23]

pics of the broken wires?

[chrisdoesitbetter]

those pics are a bit too schematic ish... i just needed help with soldering the rectifier/diode pack to the stator... the stator has 6 wires that were soldered to the rectifier and i broke 4 getting it out and i cant remember where they go