Son of a......

Cool!

Ok, now you can use the booster to find the bad connection. Hook it on
the alternator bracket and see if the voltage drops, then hook it on the
engine block.

I am figuring the alternator bracket has lost it's ground to the block.
It does happen. I usually just get a second black ground wire and go
from the alternator bolt or the bracket to the battery negative so the
alternator has a dedicated ground.

Mike

Dirty Ditch Dawg wrote:
>
> WHOOOOOOWHOOOOOO,, i think,
>
> Mike writes,,,,,,,One last test just for the heck of it....
>
> Try running a booster cable from the battery negative to the alternator
>
> case and see if it turns on.
>
> I have seen that happen twice.
>
> Mike make it three times,
> hooked cable to neg on batt.
> reached over and clipped the alt bracket,
> BIG spark,
> jumped,
> re-clipped the cable no spark,
> alt-post to ground 14.5 volts
> my batt is charging acording to my dash gauge.
>
> SO NOW,,, whats the BAD,,good,,news?
> i havnt shut the jeep off yet,
>
> johnp

 

Mike,
ive taken the cables all the way off,
stopped the motor,
re-started,
and its now charging,
,
but i will still do as youve said,
theres gotta be something, keeping it from getting a ground,

johnp

THANK YOU FOR YOUR HELP, and Patience,
nice to know us handicapped folks have people like you to help us out

 

Mike,
ive taken the cables all the way off,
stopped the motor,
re-started,
and its now charging,
,
but i will still do as youve said,
theres gotta be something, keeping it from getting a ground,

johnp

THANK YOU FOR YOUR HELP, and Patience,
nice to know us handicapped folks have people like you to help us out

 

Mike,
ive taken the cables all the way off,
stopped the motor,
re-started,
and its now charging,
,
but i will still do as youve said,
theres gotta be something, keeping it from getting a ground,

johnp

THANK YOU FOR YOUR HELP, and Patience,
nice to know us handicapped folks have people like you to help us out

 

You are welcome.

You should beef up the ground, it lost it and managed to jump it again
by arcing somewhere but it won't last or allow all the power to pass.

Mike

Dirty Ditch Dawg wrote:
>
> Mike,
> ive taken the cables all the way off,
> stopped the motor,
> re-started,
> and its now charging,
> ,
> but i will still do as youve said,
> theres gotta be something, keeping it from getting a ground,
>
> johnp
>
> THANK YOU FOR YOUR HELP, and Patience,
> nice to know us handicapped folks have people like you to help us out

 

You are welcome.

You should beef up the ground, it lost it and managed to jump it again
by arcing somewhere but it won't last or allow all the power to pass.

Mike

Dirty Ditch Dawg wrote:
>
> Mike,
> ive taken the cables all the way off,
> stopped the motor,
> re-started,
> and its now charging,
> ,
> but i will still do as youve said,
> theres gotta be something, keeping it from getting a ground,
>
> johnp
>
> THANK YOU FOR YOUR HELP, and Patience,
> nice to know us handicapped folks have people like you to help us out

 

You are welcome.

You should beef up the ground, it lost it and managed to jump it again
by arcing somewhere but it won't last or allow all the power to pass.

Mike

Dirty Ditch Dawg wrote:
>
> Mike,
> ive taken the cables all the way off,
> stopped the motor,
> re-started,
> and its now charging,
> ,
> but i will still do as youve said,
> theres gotta be something, keeping it from getting a ground,
>
> johnp
>
> THANK YOU FOR YOUR HELP, and Patience,
> nice to know us handicapped folks have people like you to help us out

 

On Sun, 6 Mar 2005 16:15:01 UTC "Dirty Ditch Dawg"
<scopenutt@yahoo.com> wrote:

> Mike,
> engine off,
> 12.54V batt neg to pos
> 12.54V batt neg to relay
> 12.54V batt neg to alt post
> 12.32V alt post to alt case

Bad ground to the alternator case - that sucker should be as close the
the negative terminal as possible. May be a dirty/cruddy/oily contact
where the alternator bolts to the block or a bad ground between the
battery and the block. Try using a jumper cable from the battery
negative directly to the alternator case and see what happens - should
charge like a fool.

On the I6, there is a #4 or larger wire from the negative post to a
stud just behind the oil filter. That one can easily be crudded up or
it could be a corroded connector on that wire. That would kill the
engine and the alternator ground as well. The connection to the stud
is a PITA to get off - it's double nutted on a stud screwed into the
block and likes to come out of the block instead of letting the outer
come off.

That large nut on the starter relay where the alternator wire attaches
can be a bitch to get off as well - it really takes two wrenchs to
keep from buggering the relay by twisting the bolt as you loosen it
but one has to be really thin to get in there. Mine took 2-3 days
soak with penetrating oil and several good grunts to get off last time
I did it.

--
Will Honea

 

On Sun, 6 Mar 2005 16:15:01 UTC "Dirty Ditch Dawg"
<scopenutt@yahoo.com> wrote:

> Mike,
> engine off,
> 12.54V batt neg to pos
> 12.54V batt neg to relay
> 12.54V batt neg to alt post
> 12.32V alt post to alt case

Bad ground to the alternator case - that sucker should be as close the
the negative terminal as possible. May be a dirty/cruddy/oily contact
where the alternator bolts to the block or a bad ground between the
battery and the block. Try using a jumper cable from the battery
negative directly to the alternator case and see what happens - should
charge like a fool.

On the I6, there is a #4 or larger wire from the negative post to a
stud just behind the oil filter. That one can easily be crudded up or
it could be a corroded connector on that wire. That would kill the
engine and the alternator ground as well. The connection to the stud
is a PITA to get off - it's double nutted on a stud screwed into the
block and likes to come out of the block instead of letting the outer
come off.

That large nut on the starter relay where the alternator wire attaches
can be a bitch to get off as well - it really takes two wrenchs to
keep from buggering the relay by twisting the bolt as you loosen it
but one has to be really thin to get in there. Mine took 2-3 days
soak with penetrating oil and several good grunts to get off last time
I did it.

--
Will Honea

 

On Sun, 6 Mar 2005 16:15:01 UTC "Dirty Ditch Dawg"
<scopenutt@yahoo.com> wrote:

> Mike,
> engine off,
> 12.54V batt neg to pos
> 12.54V batt neg to relay
> 12.54V batt neg to alt post
> 12.32V alt post to alt case

Bad ground to the alternator case - that sucker should be as close the
the negative terminal as possible. May be a dirty/cruddy/oily contact
where the alternator bolts to the block or a bad ground between the
battery and the block. Try using a jumper cable from the battery
negative directly to the alternator case and see what happens - should
charge like a fool.

On the I6, there is a #4 or larger wire from the negative post to a
stud just behind the oil filter. That one can easily be crudded up or
it could be a corroded connector on that wire. That would kill the
engine and the alternator ground as well. The connection to the stud
is a PITA to get off - it's double nutted on a stud screwed into the
block and likes to come out of the block instead of letting the outer
come off.

That large nut on the starter relay where the alternator wire attaches
can be a bitch to get off as well - it really takes two wrenchs to
keep from buggering the relay by twisting the bolt as you loosen it
but one has to be really thin to get in there. Mine took 2-3 days
soak with penetrating oil and several good grunts to get off last time
I did it.

--
Will Honea