I started up the 78 Elk again today. The volt meter went to +13 volts, then dropped to the orange line. Is there a part I need to change in the alternator or do I need to change the alternator?
Alternator ratings (in Amps) are determined by the vehicle options, not the engine size. The more electrical options (AC, power windows, etc), the bigger the alternator. For the 229 V-6, the mounting brackets are the same, so the physical housing swap back and forth with no problem. Just make sure the amp rating on the replacement matches or exceeds the alternator mounted from the factory.Since I put an alternator from a V6 Maibu is there any difference between it and the one from the 73 350?
Actually the 10 DN variety came with 1963 to 1968.The electrical system that came with these cars is the 10D.N. It has a very high average current rating with a stand alone voltage regulator. Having the regulator mounted on the radiator support with nice cool air on a steady section of the car is the best..
"Could it cause damage to the alternator?' It will cause damage to your battery (overcharge). Get a battery minder.Thank you for your information. This alternator came out of a 79 Malibu with a V6. I put it in the Elk, myself. It's been there since 2001. Is it possible that the regulator is bad? This problem seems to have started, after I started using the trickle charger and leaving it on all the time. Could it cause damage to the alternator?