Heys guys Im running out of hair to pull,so Im going to see if you guys can figure out what is going on.
First lets start off by saying I have a 69 camaro that used to have an L6 and a points type ignition,but now has a v8 with a GM HEI ignition. Also while the L6 was still in the car I did the external to internal si series alt. swap and everything worked fine or so I thought.
Also when I upgraded to the V8 and the elec. ign. I did all the stuff required like straight 12 volts to the dist. via a knew 10 gauge wire from the ign spade terminal in the fuse box and also put a relay inline to make sure constant 12 ,and I put the batt. in the trunk and ran 2 gauge wire from the trunk to a remote ford type solenoid,then to the starter.
Now for the problem I went to fire up the motor fr the first time everything worked fine,when I finally got the thing to idle and went to pull the key out Ill be damned if it kept on runnin,but everything is charging like it should be.
So I grabbed my meter to try to figur things out and what I came up with is that for some reason after the ign. is switched off and the motor is still running Im getting "2" volts to the relay to the dist. which I guess is enough to keep the thing energized so it will keep sending 12 volts to the coil,and also Im getting "2" volts to the fuse box at that time.
So Itryed some more experimenting and found that if pull the 2 wire connector out of the alternator whilethe car is still running with the ign. shut off it will die .
I read all the archive posts on alt. backfeed and still couldnt figure out if that was my problem or not so i started to tear into the factory harness and decided to rewire somethings to do away with the hole mess there around the horn relay.
So heres what I did
Ive got the main wire that bolts onto the back of the alt. going straight to the hot all the time side off the starter relay. Then The to wire connector coming out of the alt. (that I got from autozone that has a red and a white wire on it)The red wire going to the output stud terminal on the alt,and the white wire connected to the navy blue wire on the factory harness then its jumpered to the brown old external regulator wire.Then to illiminate the horn relay(ill figur out what to do with the horn later),I ran a 6 gauge wire from the batt. to the fuse box were it feeds everthing,because that wire originally came from the horn relay buss bar.
And I took all the dead wires out off the harness that werent being used anymore like the coil wires yellow starter wires and so on.
Did all this fired it up same problem with the 2 volts only now the gen light comes on but real dim and I noticed that with motor running key on ive got about 15 volts output at the altand when I turn the key off and the motor keeps running Ive only got about 12-13 volts at the alt.
Does anybody have any ideas?
Ive heard about the diode thing is that what I need if so were does it go?
I know I could put in a toggle switch in the ign coil circuit but I really dont want to.
Anybody with some ideas please help me its driving me crazy.
Sorry My posts so long I dont know how to draw a schematic on the computer.
Almost forgot whats the pink wire with the black stripe for going to the horn relay.
Thanks fo any help.