82 Cabrio charging problem

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Kafertoys@aol.com - 08 Mar 2009 20:17 GMT

The new alternator is putting out 14 volts while wires disconected
from battery ,and the battery is new but something is preventing the
alternators from charging the battery.

If it sets awhile on start up the center console meter will read 13.5
volts but as soon as the RPMs are kicked up then the meter drops below
12 volts.

Any help would be appreciated

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SFC - 08 Mar 2009 20:27 GMT

You should never disconnect the alt. wires from the battery on a running
engine!!. Seems you have fried the v.regulator/(field)diodes.

SFC

> The new alternator is putting out 14 volts while wires disconected
> from battery ,and the battery is new but something is preventing the
[quoted text clipped - 5 lines]
>
> Any help would be appreciated

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Kafertoys@aol.com - 09 Mar 2009 14:01 GMT

Could this this problem developed due to a short in an aftermarket
radio? Who ever installed was very inexperianced to say the least.

I suspected the voltage regulator and will have it replaced instade of
replacing an already remanufactured alternator.

Thanks its always nice to have conformation.

Mario

> You should never disconnect the alt. wires from the battery on a running
> engine!!. Seems you have fried the v.regulator/(field)diodes.
>
> SFC

> > The new alternator is putting out 14 volts �while wires disconected
> > from battery ,and the battery �is new but something is preventing the
[quoted text clipped - 7 lines]
>
> - Show quoted text -

Reply to this Message

SFC - 09 Mar 2009 16:55 GMT

No, a short in the radio or any other device will first blow a fuse. And in
case of no fuse it'll burn a wire and next the car.

SFC

Could this this problem developed due to a short in an aftermarket
radio? Who ever installed was very inexperianced to say the least.

I suspected the voltage regulator and will have it replaced instade of
replacing an already remanufactured alternator.

Thanks its always nice to have conformation.

Mario

On Mar 8, 12:27?pm, "SFC" <sf-cill...@hetnet.nl> wrote:

> You should never disconnect the alt. wires from the battery on a running
> engine!!. Seems you have fried the v.regulator/(field)diodes.
>
> SFC

> > The new alternator is putting out 14 volts ?while wires disconected
> > from battery ,and the battery ?is new but something is preventing the
[quoted text clipped - 7 lines]
>
> - Show quoted text -

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dave AKA vwdoc1 - 09 Mar 2009 21:59 GMT

If it has a Motorola alternator check the terminals in the plug. Usually
they can get loose and the alternator will not put out enough current. I
sometimes remove that plug and install correct size terminals. 2 big and 1
normal size female terminals.
First I try to clean and squeeze the terminals together to make them
tighter.

AND what SFC says. ;-)

Signature

later,
(One out of many daves)

> No, a short in the radio or any other device will first blow a fuse. And
> in case of no fuse it'll burn a wire and next the car.
[quoted text clipped - 28 lines]
>>
>> - Show quoted text -

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