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Alternator stoped charging
Hi
My car, 1977 targa, has stoped charging. I just see 11.4-11.5 volt on the battery. I don't think it has stop charging totally because I have driven it quite long distances and I don't think the battery would have survived that. The alternator light in the dash isn't on either. Is it the regulator or the alternator, what is really the best approach testing this? Regulator: The stock mechanical black plastic regulator (tries adjusting the screw on the bi-metal, did nothing) Alternator: Stock from a 72 car (55amp? something) It was overhauled 10 years ago when I built this engine.
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Magnus 911 Silver Targa -77, 3.2 -84 with custom ITBs and EFI. 911T Coupe -69, 3.6, G50, "RSR", track day. 924 -79 Rat Rod EFI/Turbo 375whp@1.85bar. 931 -79 under total restoration. |
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11-22-2019, 04:10 AM
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Get off my lawn!
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It can be as simple as the indicator bulb in the instrument. It is required to excite the alternator to charge. If it is burned out the alternator will not charge. Check that first, it is real easy.
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Glen 49 Year member of the Porsche Club of America 1985 911 Carrera; 2017 Macan 1986 El Camino with Fuel Injected 350 Crate Engine My Motto: I will never be too old to have a happy childhood! |
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11-22-2019, 07:16 AM
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76 911S Targa
Join Date: Oct 2010
Location: Idaho
Posts: 1,150
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Alternator Not Charging
The other place to look is at the 14 pin connector. Since you have no dash alternator light, either the connector has lost electrical connectivity through corrosion or vibration, or the light bulb is broken. Good luck.
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76 911S, 2.7, Bursch Thermal Reactor Replacements, Smog Pump Removed, Magnecors, Silicone Valve Cover Gaskets, 11 Blade Fan, Carrera Oil Cooler, Turbo Tie Rods. |
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11-22-2019, 07:29 AM
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1977 Porsche 911 Targa 2.7s
Carrera
