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charging light T5

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Jim Mac View Drop Down
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    Posted: 21 Sep 2014 at 18:10
I was working on the T5 to check it over for MOT, hasnt been used since i got the Norge in May

Started it up and noticed the charging light was staying on. Checked the battery with a meter - definately charging ok. Switched bike off and back on - no charging light bust as soon as i started it up charging light came on.

What first to check ?
Norge 1200 GT 8v   T5 Polizia
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Brian UK View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 21 Sep 2014 at 18:45
Is it a Bosch alternator Jim? With brushes and slip rings?
 
What voltage did you get at the battery when the engine was running?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jim Mac Quote  Post ReplyReply Direct Link To This Post Posted: 21 Sep 2014 at 19:35
Its a bosch,oringinal from 1986, getting 12.4 at tickover rising to 13.8 at 2000rpm

The light is very low at tickover, brightens up when revving and real bright ifbyou put the brake on

Edited by Jim Mac - 21 Sep 2014 at 19:35
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 21 Sep 2014 at 22:40
Check all connections on the rectifier are good and clean, sounds like an earth connection is poor.
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Mike H View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 22 Sep 2014 at 20:44
Also look at brushes and slip rings, and alternator connectors. Yeah yeah I know how it looks like it's charging BUT .....
   
Edit: a clue is in the fact that you left it for a while, so suspect oxidised connector(s) etc.
 
 
 
 


Edited by Mike H - 22 Sep 2014 at 20:45
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jim Mac Quote  Post ReplyReply Direct Link To This Post Posted: 23 Sep 2014 at 15:41
All clean and tight in the alternator. When engine is running if i pull handbrake and foot on fbrake at same time, neutral light comes on and volt gauge starts working ?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 23 Sep 2014 at 16:11
Ah sounds more like you got a bad earth connection for the instruments area?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jim Mac Quote  Post ReplyReply Direct Link To This Post Posted: 25 Sep 2014 at 19:07
Trackd it to a dirty connection on the fascia, all njow bacvk to normal. Just need to ride it each week now to stop it getting in a huff
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 25 Sep 2014 at 21:30
Just sorted a starting issue on the Norge by soldering a crimped joint.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 25 Sep 2014 at 21:32
Originally posted by Jim Mac Jim Mac wrote:

Trackd it to a dirty connection on the fascia, all njow bacvk to normal. Just need to ride it each week now to stop it getting in a huff
  
That'll do it, I had similar weirdness last year when I put the rebuilt dash console on but forgot to earth it. LOL
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 25 Sep 2014 at 22:04
Test.
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