I have a 72 Lark with a 350. I put an aftermarket intake (TA 350 stage 1) and carb (Holley Street Avenger 670). My problem is that the car battery doesnt hold a charge/recharge. The alternator has been replaced (and tested good) from Schucks. The battery is new. Is there an internal voltage regulator for this year model? Is it external? If it is indeed external, any1 have a suggestion on where to find 1. John
John, The 72 came with an external one on the firewall. You can buy them from just about any autoparts store. I personnely converted my to an internally regulated type, But this would require you to buy a new alternator. There is a good how to on www.buickperformance.com http://www.buickperformance.com/alternat.htm
John, I went with a self exciting single alternator and you don't use the external regulater and it works quiet and more dependable, AL.
If you want to just replace the regulator, I replaced mine with a Wells VR715 that I got at, I think, Autozone for pretty cheap. It's a solid state unit. Al Fiandaca (GSThunder) suggested at the time that I swap the cover off the original onto the Wells unit for an original look. I have not done that yet, but it's on my list.
Thank you all for your insights! Now to get about finding a quick fix replacement and how to do an internal conversion... Thank you! John
year one makes a conversion kit to convert (eliminate) the voltage regulator . of course u will have to buy an internally regulated alternator . i purchased this kit a couple of years ago . check it out .
