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HowToDo Question : Why change the alternator on Clio 1.9 D does not load ?

Waiting for a better solution Why change the alternator on Clio 1.9 D does not load ?

Forum-> Car Repair & Maintenance
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PostPosted: 01 Dec 2010 6:38 
The vehicle is a clio 1.9D 1998.
Following ignition of the battery indicator in stock and an inability to start, I I searched the problem: restart
cables OK.
battery voltage 11.5V
engine barely turning 12V

->> I take the death of the alternator (and/or regulator).
The brushes and commutator were good too.

So I change the alternator with a 80A to the seller on the corner.

reassembling no major concerns except that no more load.

alternator battery cable continuity was verified.

Here I
The three have been resurfacing
- small wire on the + (it Another lug side)
- W terminal on
- thick cable (can not be wrong.)
# where's the catch?
I'm interested in any idea !

PostPosted: 01 Dec 2010 6:47 
See if the wire excitation of the alternator is a 12 volt foune engine running is the little wire that plugs alone.
And from there, try unplugging it and putting a battery direct. Otherwise see the son of mass motor, battery,.; ensure they are tight, not cut.
A +

PostPosted: 01 Dec 2010 8:08 
Thanks Jojo!
I will look on this thread (continuity).
alternator on the other hand there are two pins for the +
It is obviously the + terminal of the alternator should fix it?

There is nothing written on the second "take" on the side.

Sincerely ,

PostPosted: 01 Dec 2010 9:18 

verify the correct connection of terminal excitation at the back of the alternator.

else go there: technique/section12/sujet232846.htm

PostPosted: 01 Dec 2010 9:55 
Hello, if the battery voltage is below 12 volts it needs to be replaced, normally it should be closer to 12.5 volts. When the engine is running the voltage should be 14.5 volts

PostPosted: 01 Dec 2010 11:19 
This is the sequel of events:
Following the advice of Jojo, I measured the voltage on the line excitation engine stopped after contact I have no more than directly to the battery -> normal to me.
Step 2 -

I am preparing a wire connected to the battery + terminal
I start the clio cables then separates the two vehicles.
Tension continues down to the battery (the alternator not charging yet).
I connect the other end prepared on the terminal of the alternator (taking excitement).
-> 14.5V < -> alternator debit.

I do not understand how a direct line would bring more juice to drive the alternator. ??

I also tried to leave a second battery charged in parallel for more than 12V but the alternator does not necessarily charged.

solution let this thread is tempting but should not there be voltage after contact? Is there not a risk to leave the alternator and energized by the battery (discharge, heating, etc.)?

I am taking all your sparks (no pun !)
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