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 Posted: Tue Jan 20, 2015 3:26 am |
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Joined: Jul 27, 2014
Posts: 8
Trade Rating: 0
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I had an issue where by the alternator stopped charging the battery. I figured that I had no 12v signal to the exciter wire from the plug in the engine fuse box. Have temporarily put a switched +ve onto the exciter wire and it charges now but can over charge, up to 16v! My question is, is there a fuse for the exciter circuit? And also does the ecu turn off alternator charging from time to time under normal running to prevent over charging or is my alternator goosed as it should never charge that high? Please help!
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Posted: Tue Jan 20, 2015 6:08 am |
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Joined: Feb 07, 2010
Posts: 2720
Trade Rating: +6
Location: UK
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There should be a charge regulator on the alternator. Probably easiest just to replace the alternator.
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Posted: Thu Jan 22, 2015 8:44 am |
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Joined: Jul 27, 2014
Posts: 8
Trade Rating: 0
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Ok got replacement alternator
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Posted: Thu Jan 22, 2015 9:16 am |
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Joined: Jul 27, 2014
Posts: 8
Trade Rating: 0
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Anyone advise on how big a job it is ? Garages saying 3.7hrs and looks a bit tight in there
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Posted: Thu Jan 22, 2015 1:09 pm |
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Joined: Feb 07, 2010
Posts: 2720
Trade Rating: +6
Location: UK
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What engine?
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Posted: Fri Jan 23, 2015 1:00 am |
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Joined: Jul 27, 2014
Posts: 8
Trade Rating: 0
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GTI138, s16.....
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Posted: Fri Jan 23, 2015 5:05 am |
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Joined: Feb 07, 2010
Posts: 2720
Trade Rating: +6
Location: UK
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Not to hard. Aux belt off, might need to drop aircon pump first. Easily done on ramps though
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Posted: Fri Jan 23, 2015 11:51 am |
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Joined: Jul 27, 2014
Posts: 8
Trade Rating: 0
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Dam alternator from eBay (genuine pug) has two bolt on posts as opposed to one post and a two pin connector. Can I still use this?
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Posted: Fri Jan 23, 2015 1:45 pm |
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Joined: Feb 07, 2010
Posts: 2720
Trade Rating: +6
Location: UK
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Do the part numbers match. Should be two to bolt to the engine block. You'd have to check the connector. Is it 2nd hand?
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