Guys here i am again with a electric problem this time.

By the time that the car was resting i ordered from 2cv viking some new brushes ( femsa) .

The old ones was working but didn't get me enough voltage and had a loose connection to the EXT cable so sometimes it didn't give any voltage at all.

When they came i installed it at the alternator and start the car. For some reason the systme didn't worked ( it may be possible to forgot the charger on the car ) . After that i realise that i ve burned my voltage regulator. Today i got myeself a new one installed it and start the engine. The femsa's brushes has two pins one that comes out of the brushes and one in the housing. When i connect the external it gives me no voltage so no charge. When i am installing the cable on the internal pin then it gives me no more than 13volts at high rpm.

I installed the old ones (brushes - loose connection) and took the car for a ride. I saw at that moment that the alternator was overcharging the car. Came back put the multimeter on the battery and i got myself suprised . At high rpm the alternator was giving even more than 16volts.

I talked with the man who sold me the alternator and he told me that if the earth is not good then the alternator can raise dramatically the charging voltage. But i didn't understood which earth connection of all.

I cant tell for sure that my cables are in good condition but i dont know which cable do i have to search first. Also it makes me wonder why the external pin of the new brushes doesn't give me any voltage ( i heard a crack through the installation ) but the internal gives me low voltage. The cables i thing are properly connected to the regulator .

So what do i have to search for ?

Any chance of photos of both bushes and how you connect them?

Cheers
Viking

I am going down to take some pictures. I just thought that i might burned down the new regulator.....!

on the installed one i put the wire to both of the male pins. Starting from the upper ( as installed ) one . This is where i think i burned my other regulator...... . After what i thinked i understood with what you told me i put the cable on the one which coming out . But before that i have heard a possible crack inside those brushes...!

I am afraid that there are some electrical sorting at the car but i don't know where.

And for what it stands i got a first contact with an engineer but i would like to solve it myself....!

As long as i have you guys to support


edit : i took out the positive terminal from the battery put it on the multimeter and measure 0.5a with the key ignition to off...!
I think that is somethign bad....! Now i ll have to look where these amps are going.

the .5amps were from the radio stanby mode.
fixed all the cables put the brushes on but now it is undetcharging again.
any ideas guys ?

Did you check the water level in the battery and/or some batteries are faulty preventing the alternator doing its job. Try another battery.

The Femsa brushes, use the spade connection sticking out fixing the wire from EXC or field if you like. The other connection should be ignored (GSA connection) With working battery, bridge the EXC (field ) and + on the alternator which should show total amount of voltage the alternator can produce. Make sure that the fuse (alternator and firewall) is not blown. If alternator can not produce past 17 volts or more, it is faulty. If OK regulator is not working. If you get stuck, try auto electrician.

Is it a sealed regulator?

The new one is a mobiletron ( or something) and it is a metalic and seems sealed too.

Peter i would go and check what you have told me. That means that all this time that i was driving the car the old brushes were wrong installed . I mean it should have another one pin ( the ext ) and it didn't. The battery is 6-7 months old .

At this time with the old brushes it doesn't charge at all . it cant reach 13v.

When i am installing new brushes do i have to disconnect the battery ?

Anyway i am going down to check the alternator.

How about a close up photo of the regulator showing how it is hooked up?
Did you modify the wires? Did the loom have 3 pin multi plug?

Problem Solved Guys . Thanks all for your time .

Now what was wrong. Basically i listened peter's advice and talk to a electrician here in greece.

He told me to take the alternator there and i took the regulator too. The fear i had was the alternator. The alternator was working perfect but he couldnt say for sure about the regulator.

So came back home and remembered what james asked . Then i opened the regulator ( which is a regulator with a coil and not an electronic one) and saw that one wired inside had been cutted .

The exc pin is connected with the earth in the car. If you take a look at the photos i tool the hole of the screw that hold the brushes on the alternator is on the ext pin. So connecting this to the regulator it was a electric sort .

On the old brushes that the car was working ( in the begging but overcharging) the cable i was putting in was on the right spot but some how it was touching the other pin with the hole and the - power. So it was overcharging as the guy told me on the phone yesterday...!

I am very happy. tomorrow i ll put everyhing on and take my new master cylinder for rolling endos training...."

New brushes good adjustmenet on the carb new and proper sparks ( i had some inproper installed b6phs ) new master cylinder and the car feels like a turbo one..

Thanks guys . Have a nive weekenf,

Pavlos