punisher Posted February 26, 2023 Share Posted February 26, 2023 hello everyone I’m French excuse me I use googled to translate, I live in the south of France and I own a 1950 Buick Super I have a problem with my alternator I bought a new one but my battery still does not charge I really do not know what to try to make it work, I wonder if the former owner could be swapped the wires on the amperemeter could that have prevented my battery from charging? thank you https://www.facebook.com/cape.koi/videos/582116980616972?idorvanity=1556663194660658 Link to comment Share on other sites More sharing options...
alsancle Posted February 26, 2023 Share Posted February 26, 2023 Somebody help me here. But wouldn’t a 1950 Buick still have a generator instead of an alternator? 1 Link to comment Share on other sites More sharing options...
dictator27 Posted February 26, 2023 Share Posted February 26, 2023 Yes it would. Could just be Google translate. 1 Link to comment Share on other sites More sharing options...
28 Chrysler Posted February 26, 2023 Share Posted February 26, 2023 Punisher Take some photos of what you have. Photos do better than the translators. Link to comment Share on other sites More sharing options...
punisher Posted February 26, 2023 Author Share Posted February 26, 2023 Hello to all thank you for answering me it’s nice, see the video I put on Facebook . Link to comment Share on other sites More sharing options...
SC38dls Posted February 26, 2023 Share Posted February 26, 2023 Post it here as not all can get on Facebook and you will get better answers. dave s Link to comment Share on other sites More sharing options...
punisher Posted February 26, 2023 Author Share Posted February 26, 2023 (edited) OK I’ll try to put the video here thank you Edited February 26, 2023 by punisher (see edit history) Link to comment Share on other sites More sharing options...
punisher Posted February 26, 2023 Author Share Posted February 26, 2023 Link to comment Share on other sites More sharing options...
punisher Posted February 26, 2023 Author Share Posted February 26, 2023 I try to put a video but I don’t know how Link to comment Share on other sites More sharing options...
punisher Posted February 26, 2023 Author Share Posted February 26, 2023 Link to comment Share on other sites More sharing options...
punisher Posted February 26, 2023 Author Share Posted February 26, 2023 Link to comment Share on other sites More sharing options...
DonMicheletti Posted February 26, 2023 Share Posted February 26, 2023 You do have a generator. To get it generating you have to polarize it. The manual should explain this process where you apply a short positive charge to the F (field) coil. Do check the manual 1 Link to comment Share on other sites More sharing options...
Jon37 Posted February 27, 2023 Share Posted February 27, 2023 Ce sera peut-être un meilleur forum pour vous. Là-bas, ils parlent la langue de Buick ! https://forums.aaca.org/forum/57-buick-post-war/ 1 Link to comment Share on other sites More sharing options...
Dandy Dave Posted February 28, 2023 Share Posted February 28, 2023 Some of the wiring looks as old as the car. Old wiring will turn green inside and need replacing. It will prevent the power from flowing. Replace the wires that are old. 1 Link to comment Share on other sites More sharing options...
punisher Posted February 28, 2023 Author Share Posted February 28, 2023 hello thank you for your answer I tried but when I replace with new cable of the same section there is no electricity at all yet there is only one cable that goes from gen to voltage and one from voltage that goes to the + of the starter, maybe the old owner got the wrong regulator Link to comment Share on other sites More sharing options...
punisher Posted February 28, 2023 Author Share Posted February 28, 2023 Link to comment Share on other sites More sharing options...
MochetVelo Posted March 1, 2023 Share Posted March 1, 2023 I don't know about facebook videos, but it is easy to post YouTube videos here. Just copy and paste the link. Phil 1 Link to comment Share on other sites More sharing options...
Frank DuVal Posted March 1, 2023 Share Posted March 1, 2023 On 2/26/2023 at 12:51 PM, DonMicheletti said: The manual should explain this process where you apply a short positive charge to the F (field) coil. Do check the manual No. That is the other circuit generator, the Ford B circuit charging system. There are A and B circuit generators and polarizing is different. You were right in saying read the manual.👍 You jump the BAT and ARM (or GEN) terminals at the voltage regulator to polarize the generator on a 1950 Buick (most GM cars 1950 and newer). Use a pretty good size wire, like (let me get my AWG to mm2 converter) 2 mm2 or larger. There will be a spark. Hold it for only a few seconds. This procedure is done with the engine off, key off. Jumping BAT to FLD on this A circuit charging system will fry the voltage regulator.😲 If you look closely at the voltage regulator there should be BAT, ARM (or GEN) and FLD stamped into the terminals. And there should also be stamped A and F next to the bolts on the generator. The Field terminal gets the red circle as shown in your picture. The A of the generator should wire to the ARM (GEN) of the regulator. The F of the generator should wire to the FLD of the regulator. BAT of the regulator should go to the positive battery post. The regulator case does need to be grounded (earthed to chassis) to operate. In operation, the regulator grounds the F terminal, so the regulator case needs to be grounded to do this. If it is mounted on rubber, there should be a jumper wire or brass strip to do the grounding. To test if the generator is faulty or the voltage regulator, when the engine is running, ground the F terminal of the generator. If the battery voltage rises/ammeter shows charging, the generator is working and the voltage regulator is suspect. Do not keep this jumper wire in place, it will overcharge the battery and apply too much voltage to the system. This is only a test. 2 Link to comment Share on other sites More sharing options...
nat Posted March 4, 2023 Share Posted March 4, 2023 Have you checked the brushes in the generator? Link to comment Share on other sites More sharing options...
nat Posted March 4, 2023 Share Posted March 4, 2023 Image/translation of "brushes" Link to comment Share on other sites More sharing options...
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