Guest dstaton Posted September 1, 2012 Share Posted September 1, 2012 Hello Folks,To trouble shoot a short in my dash wiring I have removed all connections at the horn relay – the positive battery lead, the starter, the Holley fuel pump – and reading the voltmeter at the 20v setting across the negative battery post and the grounding frame strap. The starter reads .02v. Add the pump, .05. Everything is clean to that point. But when I attach the alternator to the horn relay, it reads full voltage equivalent to the battery charge. The alternator is rebuilt, double bench tested and wired per Rocketraider's advice in other posts on replacing a generator with an S10 (see attached).Starfire Elvis shared the A/C Dealer conversion papers, but it shows a generator installation. I have been told that the A/C versions of the 62 were equipped with an alternator but it seems that particular wiring changes information is not extant anywhere. I have found a wiring diagram for the 1963 full body Olds with alternator, but it is substantially different from the 62 wiring, with a light relay and only three wires on the voltage regulator and a different Gen light circuit (see attached). Does a correct wiring diagram for the 62 Starfire with A/C exist? Does anyone know what changes should be made specifically different from the 62 Shop Manual version or from the attached 63 full body Version?Dead in the water,Doug Link to comment Share on other sites More sharing options...
Oldsfan Posted September 5, 2012 Share Posted September 5, 2012 There might be an alternator wiring diagram in the Service Guild supplements. I'll have to try to remember to take a look. Link to comment Share on other sites More sharing options...
Guest dstaton Posted September 5, 2012 Share Posted September 5, 2012 Thanks, Paul!Do you agree that checking for voltage between the Neg battery post and the ground strap with the alternator Batt terminal connected to the horn relay should not read 12 volts? The photo is from the test before i attached the alternator wire, reading the voltage from the starter, which I read elsewhere should read some mini number like .05. But after attaching the alternator it goes to 12v...I would love to see the correct wiring from the Service Guide.Doug Link to comment Share on other sites More sharing options...
Oldsfan Posted September 6, 2012 Share Posted September 6, 2012 I know enough about electricity to stay away from it. When I encounter such problems, I turn the car over to my mechanic. Here is all I've got on Delcotron. I don't know it it's going to help you, or make things worse. The text makes reference to a fuse for the relay, which isn't shown in the schematic. I'm willing to bet that the true schematic would be pretty close to the '63 one you have.Paul Link to comment Share on other sites More sharing options...
Guest dstaton Posted September 8, 2012 Share Posted September 8, 2012 Paul,You're awesome! Thanks for the excellent information. I wondered what that extra relay in the glove box was for. It never appeared on any chart or litany till now. These pictures show my newly discovered relay, which I hope works because there is only one on eBay for $150... The harness in photos is a junkyard extra for troubleshooting and modeling. My actual harness is absent the connector but I now know what those taped wires are for under my hood. Does anyone have a picture of the correct placement of this relay under the hood? It seems like it ought to be hear the voltage regulator, but I can't spot it in any 1962 Starfire photos from my archive.Doug Link to comment Share on other sites More sharing options...
starfireelvis Posted September 9, 2012 Share Posted September 9, 2012 These aren't the greatest, but should do the trick. Here are two pictures i took real quick to give you an idea. it is on the top of the driver's side front wheel well, pretty much right below the voltage regulator, and to the left of the brake booster and master cylinder. Two pictures to give you perspective. Link to comment Share on other sites More sharing options...
Guest dstaton Posted September 9, 2012 Share Posted September 9, 2012 Nice try, StarfireElvis,But as you can see, my Starfire originally came with two (!) horn relays, and for parallel structure, two (!) voltage regulators, while your car is merely relatively clean, correct, and amazing.What I need to see is the placement of the warning light relay that exists only on late 1962 A/C equipped cars (perhaps on 1963's..?) with an alternator. I think I have sussed from the redundant wiring harness pictured above that it should be near the origin of the harness engine bay entry point near the voltage regulator and the horn relay. I sure hope one day I can see your 62 in person. It looks perfect!Thanks,Doug Link to comment Share on other sites More sharing options...
D Yaros Posted September 9, 2012 Share Posted September 9, 2012 Have you tried making contact with the model year advisors of the either the OCA or NAOC re: this? Suspect they may answer, or guide you the answer you seek. Link to comment Share on other sites More sharing options...
Guest dstaton Posted September 9, 2012 Share Posted September 9, 2012 Dave,I gave Ernest Schrieter your best regards. Thanks for the advice,Doug Link to comment Share on other sites More sharing options...
D Yaros Posted September 10, 2012 Share Posted September 10, 2012 Doubt that Ernest S. knows me from Adam, but thanks. Hope he can get you headed in the right direction on this! Link to comment Share on other sites More sharing options...
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