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Hello guys need some help regarding exciter cable , I had issues with alternaor and realised there's more breaks in the dashboard so it's easier for me to add a exciter cable I know which wire I need to connect with the battery but what i want to know is how can I have the cable there permently ie: don't have to remove it each time i switch the Car off, is there a switch i could add or LED or anything that will allow me to keep the cable there with removing it many thanks
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The car is a 1982 golf GTI, if this helps
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BT
Posted a lot
Posts: 1,772
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Jan 31, 2017 10:23:34 GMT
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I had this on my vito. A bit of dry solder had cracked in the ECU and the exciter wouldn't become live when I turned the key.
I ran a length from the +VE on the battery to a button on the dash and then to the relevant terminal on the starter motor.
Have you tried replacing the switch in the back of the ignition? They're prone in VW and other vag items of that age. My supplier did mine for £7 or so for my Porsche and that solved all of my problems.
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BT
Posted a lot
Posts: 1,772
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Jan 31, 2017 10:26:54 GMT
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Jan 31, 2017 12:23:53 GMT
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Hi, The exciter for the alternator is an ignition supply through a bulb to the alternator. So you can either run a separate circuit altogether or solder in jump wires to bypass the printed circuit tracks. If you run a separate supply it will need to be switched (if you use a battery feed) because otherwise it will flatten the battery, it's not just the draw of the bulb it's also energising the field coils in the alternator. Don't forget the bulb is also telling you whether the alternator working and charging.
Colin
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Last Edit: Jan 31, 2017 12:25:28 GMT by colnerov
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Jan 31, 2017 13:19:53 GMT
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Switch a feed in at the fusebox, there are vacant spades (terminal D iirc) there to take a feed from, some are continuous feed and others are switched from the ignition (exactly what you need)
You could rig up a charge light if you wanted, the field coil will draw around an amp in order to excite.
Personally I'd fix the dash.
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Jan 31, 2017 14:09:25 GMT
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I see so can I fit a switch that will allow me to switch the exciter circuit on and off , if so what type of switch will I need if it's a 3 pin switch I would take battery live to + the wire from alternator to acc and then a earth to Chassis also would I require a inline fuse
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Jan 31, 2017 19:35:51 GMT
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I see so can I fit a switch that will allow me to switch the exciter circuit on and off , if so what type of switch will I need if it's a 3 pin switch I would take battery live to + the wire from alternator to acc and then a earth to Chassis also would I require a inline fuse You would need an fuse if you are going to earth it. |
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Jan 31, 2017 20:35:41 GMT
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Just a quick question when the AA Man got the alternator working by putting a wire to the alternator and battery he then removed the wire whilst the Car was running and it kept charging DOES this mean that once the Car car is started you connect the wire to battery and alternator, then you can remove it or DOES it need to be connected whilst driving the Car many thanks sorry so sound silly just curious
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Hi, That is a temporary fix or get you home measure, the problem is some alternators can get borderline at tickover because the magnetic field collapses and they stop charging, but you don't know because there's no charge light on the dash. He would be reluctant to leave it connected because you may leave it on overnight and end up with a flat battery in the morning and it will be all his fault.
There is of course the other problem that customers find it unacceptable to have to connect and disconnect a bit of wire to the alternator on a brand new car.
Colin
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Last Edit: Feb 1, 2017 0:32:14 GMT by colnerov
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bortaf
Posted a lot
Posts: 4,549
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Don't take this the wronge way but seriously just fix/change the dash, all you will be doing is adding complicated work arounds instead of fixing the issue which is reativly easy to fix, allways fix the cause not just the result  |
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R.I.P photobucket
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Thanks bortaf, I have found a speedo so hopefully that should be sorted but the Car won't start lol so more issues to resolve
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