replaced engine now Alternator wont charge
 

ok I got a 1985 wellcraft elcalibur with a 548 bbc I just put the engine back in and the alternator wont charge. There are four wires going to the alternator black which looks to be a ground, orange which looks to be the out put. and a red and a purple which im guessing one is a field wire. does anyone have a wiring diagram for the charging system if so please share. Ive looked and looked and looked I dont see any thing I forgot to plug in.

or if anyone knows where the voltage regulator is?

ok im a little slow today. the voltage regulator is on the back of the alternator. its a motorola voltage regulator. if someone has a diagram for this thing.

go this web site Starters, Alternators and more for Cars, Trucks, Tractors and ATVs they have marine alt with wiring diagram hope this help

Black= ground
Orange= starter/battery
Purple= switch power 12 volts
Red= constant power

Thanks figured it out. just removed brushing and cleaned them and everything started worked Thanks for the reply