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Author Topic: Just found 0.5V  (Read 1349 times)

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Ken T

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Just found 0.5V
« on: 21 March 2011, 21:10:31 »
I previously mentioned how my battery seemed flat, despite having a recon alternator fitted (at vast expense by H***** :'( ). checking at the weekend showed the volts across the battery was about 12.3V when the alternator was putting in 35A, not really much good. However a little looking revealed :



Looks a bit suspect. Probing with a DVM into the lead past the melted bit and the battery revealed over 0.5V drop. I took off the terminal and bent it over :



Half the strands came loose. So that was the cause of the flat battery, and all the duff starting, alarm going off, etc.

I fitted a replacement, cheap and cheerful one, not very good as the 2 screws go straight into the wire, but it was all I could get on a Sunday, and after a quick 20min drive all back to normality :



Thats one thing less to fix, now if I could fathom out that damn lambda probe .........

Ken
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Lazydocker

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Re: Just found 0.5V
« Reply #1 on: 21 March 2011, 21:13:09 »
Yep, common fault. I must admit I went moths with mine like it and had several people try to tell me that the Alternator was knackered... :-[ ::)
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mrgreen

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Re: Just found 0.5V
« Reply #2 on: 23 March 2011, 00:25:56 »
oh i've been there before but i replaced it all,starter and battery on my transit only to find the frailed wires,  i think the fix which should have costa tenner cost €160! that woulda been cheaper at the garage! :(
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Ken T

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Re: Just found 0.5V
« Reply #3 on: 23 March 2011, 18:58:23 »
Yes, I nearly went out and bought a new battery before I checked this.

Its funny how you always find the real cause after you have spent all the dosh on un needed parts, like my getting a replacement lambda sensor  :-X

Ken
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hoj

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Re: Just found 0.5V
« Reply #4 on: 24 March 2011, 18:38:16 »
happened to me also
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Simon72

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Re: Just found 0.5V
« Reply #5 on: 24 March 2011, 22:13:42 »
Quote
I fitted a replacement, cheap and cheerful one, not very good as the 2 screws go straight into the wire, but it was all I could get on a Sunday, and after a quick 20min drive all back to normality :

Ken

If the screws are going through the cable then an easy fix to prevent this is to use a little bit of 15mm house hold copper water pipe, either shim it either side of the wire or if possible totally sleeve the wire and then screw on to that ;-)
Also when you do this smear a little copper slip on the end of the wire when you sleeve it.
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