Exciter Wire Location
08-17-2008, 03:18 PM
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Exciter Wire Location
I have been suffering from voltage issues so I removed and tested the alternator that was installed by the previous owner. Everything tested okay. When reinstalling I think they had the Exciter wire (blue) just grounded to one of the posts which hold the cover on. Is this supposed to connect to one of the spade connectors on the back of the alternator?
08-17-2008, 07:54 PM
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Re: Not the upper wire it's the small wire next to the big wire.
My altenator is different than this one. Currently under the cover I have two wires which lead to the big side and two to the small side. Any ideas?
08-17-2008, 08:18 PM
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Re: What model audi is it?
1991 100 quattro. And I mistyped earlier there was only one wire to the small side. I have that extra wire (blue) that I think they had grounded to the alternator cover.
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08-18-2008, 06:27 AM
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Exciter wire is held on with a nut..
Exciter wire is held on with a nut, usually close to where the main output (big wire) comes off the alternator.
The exciter wire terminal may *look* like it's on a bolt holding the alternator together, but it's not. You can tell it apart from a 'structual' bolt, as it should have plastic insulation underneath. (The 'small' rusty nut on the right, in Kneal's picture)
The 'push on' connector in the top of the picture is for the attachment of the 'noise surpressor. It'a usually a small black box with one wire coming out of it, with the box itself bolted to the alternator case. ALternator will probalby work fine if that noise surpressor isn't installed..
The exciter wire terminal may *look* like it's on a bolt holding the alternator together, but it's not. You can tell it apart from a 'structual' bolt, as it should have plastic insulation underneath. (The 'small' rusty nut on the right, in Kneal's picture)
The 'push on' connector in the top of the picture is for the attachment of the 'noise surpressor. It'a usually a small black box with one wire coming out of it, with the box itself bolted to the alternator case. ALternator will probalby work fine if that noise surpressor isn't installed..