Over charging problem- Voltage Regulator???

[Guest]

I have an over charging problem with a 1970 Cutlass. When the car runs for a long period of time, the battery begins to overflow acid. Another symptom is that when the ignition key is in the accessory position, the dash "generator" idiot light is lit. Does a bad voltage regulator cause this problem?

[rocketraider]

The idjit light should be lit <B>dimly</B> with ignition switch in ACC position. If it's lit up bright something's not right. <P>A voltage regulator that's set too high will cause electrolyte to spew out the battery vents. A bad battery will also cause this problem. Mechanical VR's by design are a compromise since they have to keep a battery charged under all weather and temperature conditions. The internal electronic regulators are much more adaptable and accurate.<P>It is possible to convert an external regulator Olds to internal regulated alternator. You'll have to change the two-wire plug on the alternator and bypass the external regulator. At one time, several of the GM vendors were selling a jumper harness that hid under the original VR case and kept the original appearance with modern works.