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FerrariChat.com » Technical Q&A Archives » Archive - May thru December 2001 » 82' 308 GTSi Alternator putting out 11volts. « Previous Next »

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Herbert Edward Gault (Irfgt)
Posted on Saturday, August 11, 2001 - 6:25 pm:   

Use a pocket magnet for that.
'75 308 GT4 (Peter)
Posted on Saturday, August 11, 2001 - 2:37 pm:   

Looking at it now Herbert, you can do it in the car, but even with my thin arms and hands... The trick is that plate that bolts on the backside (seen in my photo, left-hand side, with the four little legs). Taking it off without loosing the nuts & washers would be a challenge.
Herbert Edward Gault (Irfgt)
Posted on Saturday, August 11, 2001 - 11:58 am:   

On a 308 you probably can replace the regulator with the alternator in the car. I have not tried it but I am almost positive I could do it. It would be worth the small investment to just try it and guess that is the problem which it usually is on a Bosch alternator.
Torai Madjid (Countach83)
Posted on Saturday, August 11, 2001 - 5:42 am:   

Motor, alternator, and starter rebuilders are an option to keep in mind. They are also a good option when you are on the road, far from home, and far from dealers. They usually know all the piece part cross references, and can get the internal parts. They can get you back in buisness fast and inexpensively. They can usually redo blown windings.

I take center nuts with an air impact wrench. You can easily hold the fan or pulley with your hand, and don't have to worry about bending or damaging anything.
Warren E. Smith (Magoo)
Posted on Wednesday, August 08, 2001 - 9:58 pm:   

Well done Peter, Not only that you were correct.
'75 308 GT4 (Peter)
Posted on Wednesday, August 08, 2001 - 9:49 pm:   

I bought my voltage regulator last year at a local parts store for $14 Canadian. My car did the same thing, after putting in this new reg. it worked fine. The rest of the parts inside were working fine (rectifiers, bearings, etc...).

You can check the working condition of the rectifiers by a continuity test. The rectifiers take the generated AC current and turn it into DC current. Six in total, three will show continuity in one direction, the other three, the opposite direction. These are solid-state and can last indefinitely (unless the alternator has been continuously cooked).

The only difficult part to remove is the center nut, after that, very easy and straight-forward.
altntr.jpg
Warren E. Smith (Magoo)
Posted on Wednesday, August 08, 2001 - 9:34 pm:   

Sorry Scott, I missed the part about removing it. Forget the belt check.
Warren E. Smith (Magoo)
Posted on Wednesday, August 08, 2001 - 9:32 pm:   

Scott it could be either one. You could try the reg. Then go from there. Or have it checked out and rebuilt or exchange for another. You are sure the belt is tight? Silly question but have you checked?
Scott Gold (Scotttgold)
Posted on Wednesday, August 08, 2001 - 7:56 pm:   

I removed my alternator today due to the battery light on the dash being on exessively and the battery going dead on me all the time. So I had it tested and found that it's only putting out 11 volts. So whats wrong with it? Is the volt regulator bad or does it need to be rebuilt?
If I can't fix it then how much does a new one cost?
Thanks,
Scott

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