SuzukiSavage.com - Often battery draining and now wont start at all..

Andreas

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Re: Often battery draining and now wont start at a
Reply #15 - 10/10/16 at 00:33:37

justin_o_guy2 wrote on 10/09/16 at 09:26:56:

Wouldn't a test light connected in series with either the ground or positive lead do the job?
If it lights, pull a fuse.
Etc..

or maybe an LED with a current limiting resistor (around 1kΩ) in series might detect a small current leakage. An LED can lid with some milliamps flowing through. A bulb on the other hand might not lid if a small current is there. Polarity must be taken into consideration with the LED though...
I'll also try that Wink

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Andreas

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Re: Often battery draining and now wont start at a
Reply #16 - 10/10/16 at 08:12:18

Ok new data.

Battery when engine is cranking shows 10.5V minimum value
Resistance measurements on stator:
1.3Ω between each coil

Resistance to ground:
0.8Ω for each coil... Undecided

Is there a problem here? Shouldn't I get infinite resistance?

R/R diode check:
Infinite resistance for all possible combinations (between each leg and reversed polarity)

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Re: Often battery draining and now wont start at a
Reply #17 - 10/10/16 at 08:28:50

Andreas wrote on 10/10/16 at 08:12:18:

Resistance to ground:
0.8Ω for each coil... Undecided

Is there a problem here? Shouldn't I get infinite resistance?

There's your problem, you gotta a bad stator coil.
I would double check, I would think the resistance would vary from coil to coil unless all of them were shorted.

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Armen Serious Thumper Online Half-Witted Wrench-Jockey from Jersey Posts: 1452	Re: Often battery draining and now wont start at a Reply #18 - 10/10/16 at 09:53:44 Andreas, If you got .4Ma with the key on, your meter is broken. The lights (even the instrument lights) pull more than that. -Armen
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Andreas

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Re: Often battery draining and now wont start at a
Reply #19 - 10/10/16 at 11:08:10

Armen wrote on 10/10/16 at 09:53:44:

Andreas,
If you got .4Ma with the key on, your meter is broken.
The lights (even the instrument lights) pull more than that.
-Armen

I can assure you about that because I used two different multimeters. Both showing zero with key off and 0.4 milliamps with key to on position. I have 0.4mA with the neutral and dash lights on

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Armen Serious Thumper Online Half-Witted Wrench-Jockey from Jersey Posts: 1452	Re: Often battery draining and now wont start at a Reply #20 - 10/10/16 at 11:20:13 Is the tail light on? Any other lights?
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Often battery draining and now wont start at a Reply #21 - 10/10/16 at 11:21:02 Four tenths of one thousandth of an amp is lighting What lights? Isn't the headlight on? And I haven't run the numbers, but I don't see how any light bulb uses so little current.
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Armen Serious Thumper Online Half-Witted Wrench-Jockey from Jersey Posts: 1452	Re: Often battery draining and now wont start at a Reply #22 - 10/10/16 at 11:21:53 Are your stator resistance values with the multi pin connector disconnected (stator isolated)?
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Armen Serious Thumper Online Half-Witted Wrench-Jockey from Jersey Posts: 1452	Re: Often battery draining and now wont start at a Reply #23 - 10/10/16 at 11:24:56 watts/volts=amps amps x volts=watts 13volt system (more or less) x .0004a= .005 watt bulb I'd say your meter is crap or you are reading it wrong
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Andreas YaBB Newbies Offline Badass Posts: 42	Re: Often battery draining and now wont start at a Reply #24 - 10/10/16 at 11:31:56 Sorry about that. I did the test again. I was reading the wrong scale both times. That would be 4mA with neutral and dash lights on. If I turn the head and tail lights on then I read almost 5A. I hope that makes sense now...
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Andreas YaBB Newbies Offline Badass Posts: 42	Re: Often battery draining and now wont start at a Reply #25 - 10/10/16 at 11:32:15 Armen wrote on 10/10/16 at 11:21:53: Are your stator resistance values with the multi pin connector disconnected (stator isolated)? Yes
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Andreas

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Re: Often battery draining and now wont start at a
Reply #26 - 10/10/16 at 11:58:26

I got this image from Clymer

If the centre of the star is indeed connected to ground then it should be plausible for me to read these values.
On the other hand I don't know how the stator is connected internally.
Does anyone measured it before?
Deep inside I wish to have a bad stator. I will replace it and problem solved. But I have to be sure as I believe that we are talking for a bit expensive part.

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Armen

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Re: Often battery draining and now wont start at a
Reply #27 - 10/10/16 at 11:59:43

Hey hey,
Take a look at where the wires wrap under the front pulley. Undo the clips and pull the wire bundle away from the shifter cover.
Then test again. Look at the wires for any signs of shorting to ground.
If nothing obvious, yank the alternator cover and take a looksee at the stator.
Amperage read still sounds low, but a lot closer to real.
assuming the instrument and neutral lights are at least a watt or two each, that would still give you 300-500 mA

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Armen Serious Thumper Online Half-Witted Wrench-Jockey from Jersey Posts: 1452	Re: Often battery draining and now wont start at a Reply #28 - 10/10/16 at 12:01:16 On that diagram, the center isn't ground. It's where the three legs join. Less time in front of the computer, more time with tools=results
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justin_o_guy2

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Re: Often battery draining and now wont start at a
Reply #29 - 10/10/16 at 12:14:06

An electrical diagram, schematic, shows grounds .

I can't reproduce it with the kindle.. And it's hard to describe,

But, available

http://www.rapidtables.com/electric/electrical_symbols.htm

Anyway, there is no Indication that the middle is grounded, and Armen has said so, and I think it's a good bet he's right.

You would not be the first to get wires screwed up by the belt.
Hope for that..

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