Baz2236 Posted August 29, 2012 Share Posted August 29, 2012 Hi I have just brought a new Alternator for my 90 which was a NAD and now a 200 TDI I brought one that said it was for a 110 or 90 from 86 which I thought would be the same as mine. My orginal Alternator has 3 thick wire in a plug and 1 loose spade which plugs in The new Alternator has just the plug or 3 spades do I need the loose spade connector Which way should the new one be plugged in it came with no instrctions to say which pin is what I was hoping it was going to be a straight swap but oh no that would be easy. Baz Quote Link to comment Share on other sites More sharing options...
Baz2236 Posted August 29, 2012 Author Share Posted August 29, 2012 I have just checked and the Big plug with the 3 wires on fits in the new alternator. But I have got another smaller cable with a female spade connector which has no where to plug into on the new alternator. Is this wire needed ???? Quote Link to comment Share on other sites More sharing options...
western Posted August 29, 2012 Share Posted August 29, 2012 have a look at the link in my reply on this thread http://forums.lr4x4.com/index.php?showtopic=76939&hl=+alternator%20+connections#entry658318 it shows a diagram for various alternator connections, you need to identify the existing alternator connections & on the new alternator then all should be fine. Quote Link to comment Share on other sites More sharing options...
western Posted August 29, 2012 Share Posted August 29, 2012 I have just checked and the Big plug with the 3 wires on fits in the new alternator. But I have got another smaller cable with a female spade connector which has no where to plug into on the new alternator. Is this wire needed ???? what colour code on the single wire , it'll help identify if you need it, do you have a rev counter fitted ? if it's brown/yellow trace then Yes it must be connected to the new alternator. Quote Link to comment Share on other sites More sharing options...
Baz2236 Posted August 29, 2012 Author Share Posted August 29, 2012 Its just a plain brown quite a thin one. Have you still got the picture you posted on that old thread as I can't seem to load it. Quote Link to comment Share on other sites More sharing options...
western Posted August 29, 2012 Share Posted August 29, 2012 here you go. just click on the diagram to see a bigger version Quote Link to comment Share on other sites More sharing options...
Baz2236 Posted August 29, 2012 Author Share Posted August 29, 2012 Thanks so it looks like its the Battery Sense wire Is this needed ?? As on the new alternator there does'nt seem to be a connector for it ? Quote Link to comment Share on other sites More sharing options...
western Posted August 29, 2012 Share Posted August 29, 2012 you should have thick brown which is the feed from alternator to starter motor solenoid/battery Positive terminal & a thin wire which is for the charging light, all these are needed, you won't have a battery sense connection as that's used on a different alternator system on more up to date vehicles [Td5 for example] Quote Link to comment Share on other sites More sharing options...
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