Battery cables reversed.

On Wed, 7 Feb 2007 18:32:11 -0600, (J J) wrote:

>oops. Here is the additional information to original question
>I was cleaning cables on a very cold day and in my hurry reversed
>cables. (embarassing mistake) There were no jumper cables.
>
>It was an 1987 Lincoln Towncar.
>
>Alternator quit working. NAPA man said diodes were probably burned out.
>
>Which fuse was "suppose" to have blown to prevent this?

The one in your head, connecting your brain to your hands. ;-)

"Lawrence Glickman" > wrote in message
...
> On Wed, 7 Feb 2007 18:32:11 -0600, (J J) wrote:
>
>>oops. Here is the additional information to original question
>>I was cleaning cables on a very cold day and in my hurry reversed
>>cables. (embarassing mistake) There were no jumper cables.
>>
>>It was an 1987 Lincoln Towncar.
>>
>>Alternator quit working. NAPA man said diodes were probably burned out.
>>
>>Which fuse was "suppose" to have blown to prevent this?
>
> The one in your head, connecting your brain to your hands. ;-)

LOL! I think that was his problem, his brain wasn't connected to his hands.
He's damn lucky if an alternator was the only thing he toasted.

On Wed, 7 Feb 2007 21:52:15 -0600, Bob > wrote:

>LOL! I think that was his problem, his brain wasn't connected to his hands.
>He's damn lucky if an alternator was the only thing he toasted.

a $60 alternator repair probably saved him $400-1000 elsewhere.
Once the alternator diodes went into conduction, there was no way the
system would go more negative than their voltage drop of 0.7 volts or so
until they blew or the fusable link opened.

Think ECU if you want to think expensive. Add every single electronic module
in the car's electrical system if you really want to sweat.

Lotta modules in todays cars..


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