Brodhead Pietenpol Association

Original Posted By: Rcaprd(at)aol.com
I hope some can relate to this, with all the stuff going thru my head right nowsomething. My alternator has the voltage reg built in, but this would relate tothe ones that are seperate.also. There are three wires coming out. The two marked batt go to the battery,the other wire markedign goes to the ignition switch. What I'm blocked on is that does it go to thebatt side of the switch orthe ign side of the switch? If it goes to the ignition side, it seems like thatwould be the same as connecting it direct to the coil. So how would turning offthe ignition stop the engine? And if it connectsto the batt side, it would be the same as connecting it straight to the battery.I know this question soundsdumb but I've got a brain fart at the moment and can't draw the picture in my head.Any help will be appreciated.BTW Walt, good going on getting your plane to the airport. I hope to have my fuseout atmy field by the end of the month. The wings should follow in a couple of weeksafter.Carl________________________________________________________________________________

Original Posted By: "Carl Loar"
Carl, You did not say what kind of alternator you have so I am assuming youhave a Delco alternator with integrated regulator as used on GM cars duringthe 70's and early 80's. If this is not the case disregard the rest of this.The big wire that bolts under the lug goes to the battery that is where thepower comes out of the alternator. The 2 little wires that plug in go to theidiot light and to the ign side of the ignition switch. The one that goes tothe switch just tells the alternator that it is time to send out electricitybecause the switch is on.Wayne McIntosh----- Original Message -----

Original Posted By: owner-pietenpol-list-server(at)matronics.com
-----Original Message-----

Original Posted By: "John McNarry"
Thanks guys, I got it now. With your help and a scematic I found on the webof the samekind of Bosch alt as mine, I figured it out. The wire from the small jackdoes go to theign side of the switch. That activates a switching diode that lets the juiceflow from thevoltage regulator. When the switch is on, the alt sends voltage to thebattery. When theswitch is off, the flow is stopped, thus shuting down the engine.Thanks so much for the input.Carl----- Original Message -----

Original Posted By: clif