I bet Mary has a wiring diagram. I probably do in a service manual too. Both my g0bodies read lower on the gauge than at the battery. JC On Wed, Nov 24, 2010 at 12:31 PM, Chris Lindh <chris@xxxxxxxxxxxxxxxxx>wrote: > Yes, I had previously used the brown wire that originally plugged into > the SI alternator. I had to extend the wires since the V6 had the alt > on the passenger side. I do not know where that brown wire > originates. I changed the "L" (lamp) exciter wire to a wire coming > from the HEI plug with a 470 ohm resistor. > > I installed the new CS130 alternator and I'm back in business: 14.7 > volts read at the alt. When the alternator is "on" with key turned > you can hear a high pitched sound, the same as the previous CS130 > (before it died). I hope the resistance is correct... > > One snag, I had to clock (rotate) the alternator housing so the stud > would clear the valve cover. I don't use the rear support, so this is > not a problem. It's a bit more tidy with the alternator plug hidden. > > On Wed, Nov 24, 2010 at 6:10 AM, John Christensen <johncgg@xxxxxxxxx> > wrote: > > Is that the brown wire that goes to the 2 wire clip on the back? Where > does > > the other end go? To the dash cluster? Are we there yet? > > > > My gauge on the Monte reads way low, but the voltage measures fine at the > > battery. I think there is a bad connection somewhere. I had the dash > partly > > out to fix the transmission gear selector indicator (the little loop > > broke.... they all do, so a little binding wire fixed it). I didn't tear > it > > down far enough to clean the contacts on the ribbon connector. Seems like > > that fixed the same situation on the Elky, but only for a short time. I > > should replace the middle bulb on the Monte too. Why does that one always > go > > out??? > > > > I should also pay attention to the bulbs. when I start it next time. I > know > > the check engine light has been pulled, along with the computer. I > suppose > > if the bulb is out, I could be in trouble then. > > > > Thanks, > > JC > > > > On Mon, Nov 22, 2010 at 7:34 PM, Chris Lindh <chris@xxxxxxxxxxxxxxxxx> > > wrote: > >> > >> I measured the same voltage on the "L" exciter wire as the voltage at > >> the battery, and the only warning light illuminating when I turn the > >> ignition to "on" is the "Fasten Belts" light. So I took the > >> ignition-on 12V source from the HEI plug and added a 470 ohm resistor, > >> 1/2 watt, so when the battery voltage read 11.85 the L wire now reads > >> 11.75. > >> > >> I've read stock CS alternator wiring has a resistor in the wiring in > >> case the warning light goes out... my '80 probably does not have this > >> resistor. A 50 cent bulb took out the alternator? > > > Rules: Please play nicely with others. > > -List members page (text & pic links): > http://www.myelcamino.net/eclist.htm > -List members page (all pics): > http://www.myelcamino.net/ec_list.htm > >