Danozeman
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| posted on 3/4/07 at 07:55 PM |
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Battery draining when left connected...
Help please.
If i leave my battery connected overnight it drains the battery.
Iv checked everything out and cant find anything draining it.
Anyone had the same with Vicky green loom??
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
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westf27
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| posted on 3/4/07 at 08:14 PM |
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assuming your battery is ok,something is draining it.Connect an ammeter in series with the battery and observe the current flow,then systematically
disconnect items till current flow ceases.It may help to isolate large parts of the whole car by initially pulling fuses one by one.
555
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westf27
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| posted on 3/4/07 at 08:21 PM |
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in fact had that problem with an Esprit,it was the alternator,diodes i think.
555
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stevec
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| posted on 3/4/07 at 08:25 PM |
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After you have checked the other circuits as suggested. If it has a Ford original alternator on it I have seen these try to be an electric motor when
the engine is off and drain the battery,
Does the alternator get warm even after the engine has been off for a while?
Steve.
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Danozeman
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| posted on 3/4/07 at 08:30 PM |
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Im thinking alt myself. Its a charade one.
I have checked everything else.
Thanks ill have aplay tomorrow. Iv got another alt somewhere. Ill try that.
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
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stevec
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| posted on 3/4/07 at 08:34 PM |
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If its the alternator I am sure it will get warm when it shouldn't if you know what I meen.
Steve.
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owelly
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| posted on 3/4/07 at 08:39 PM |
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Does the battery lose charge if it's disconnected? Could be a knackered battery?
Another way to check is to take one lead off the battery and tap it on the battery post. If there is a spark, no matter how small, there is something
still pulling current. Then try taking the fuses out one by one and try the tapping method to see if you can pin point which circuit os faulty. If it
still sparks with all the fuses out, it must be a fault before the fuse box or an unfused component. Unplug the alternator to see if it's
that?
[Edited on 3/4/07 by owelly]
http://www.ppcmag.co.uk
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stevebubs
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| posted on 3/4/07 at 09:45 PM |
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quote:
Originally posted by Danozeman
Im thinking alt myself. Its a charade one.
I have checked everything else.
Thanks ill have aplay tomorrow. Iv got another alt somewhere. Ill try that.
Unplug the alternator overnight. If it doesn't go flat then you've found the problem...
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BenB
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| posted on 3/4/07 at 10:03 PM |
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I'd unplug the battery to check the self-discharge rate....
If there's a slow discharge you've got two options- try and find the source of the discharge or just fit a battery isolator 
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flange nut
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| posted on 3/4/07 at 10:28 PM |
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I have a Vicky Green Loom and a Nippon Denso alternator. The problem is that the field coils of the alt are permenantly connected to the battery
(thin brown wire). I had to modify my loom to use a switched live feed.
Geoff
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Danozeman
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| posted on 4/4/07 at 05:41 AM |
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quote:
I have a Vicky Green Loom and a Nippon Denso alternator. The problem is that the field coils of the alt are permenantly connected to the battery (thin
brown wire). I had to modify my loom to use a switched live feed.
Ill have a look at that. Thats the sort of thing i was wondering because my alt is suposidly a recon. Although i thought my thin brown is
switched.
Its deffo not the battery. I always disconnect it when im not working on it and its fine. Only the other day i forgot to disconnect it, now it
flat and it does it every time i forget to disconnect it.
Convinced its alt.
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
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Agriv8
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| posted on 4/4/07 at 08:09 AM |
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If your alt is not the issue
I would run a test light across my fuse box and find the fusses that are live with ign off pull them all and leave and see if it still has a drain.
Then repace one by one, depending how big the drain is a spark may jump when you re-atach the curcuite with the item causing the drain.
regards
Agriv8
Taller than your average Guy !
Management is like a tree of monkeys. - Those at the top look down and see a tree full of smiling faces. BUT Those at the bottom look up and see a
tree full of a*seholes .............
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flange nut
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| posted on 4/4/07 at 01:06 PM |
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The Vicky Green loom uses Brown as the unswitched live and Green as the switched live. White is the ignition live.
Geoff
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