Re: 89 100 Wagon charging system woes :-(

[mlarosa@BayNetworks.com (Mike LaRosa)]

Thanks Scott, Tony and Katpassage...

I'll check thru your suggestions tonight and check back :-)

Although, the cables didn't have any nasty green goo
on either the starter end or battery end.  

Is the positive cable that goes from the starter to the battery
a straight thru cable ? or is there another connector or lug
along the way ?  anybody know ?

Scott, I'm using a sunpro 7680 or some number like that :-)
it has ac, dc, ohms, dwell, and tach for a 5cyl on it.  The
ohm dial has 200k, 20k, 2k and a tone setting.  The number
it showed was 0.000.  I did touch them together before I 
ohmed anything out and they said 0.000.  Is this what you were
looking for ?

Mike L.
89 100 Wagon... sick at the moment..
90 V8... misses it's rightfull owner ME, until the wagon is fixed...

At 10:08 PM 8/19/97 -0700, Scott M. wrote...
>Mike,
>
>From your test description, it sounds like the ground from
>the alternator, through the mounting bracket on the engine,
>through the engine block, through the braided ground cable
>from the drivers side engine mount bracket to the body,
>through the body and over to the negative battery terminal
>is ok. 
>
>The alternator output cable, the battery positive cable and
>the jump start cable all connect at the starter terminal as
>you know. It sounds like either the positive end of the
>battery terminal connector has internal corrosion or the
>other end of the battery positive cable with the big lug
>that bolts to the starter has a lousy connection between
>the wire strands and the lug. I would cut off the positive
>battery terminal from the cable  at the battery end and
>make sure the bare wire strands don't have that green
>corrosion stuff wicked up several inches of the cable. This
>could have happened at the starter end of this cable as
>well. Your test with the jumper cables should verify this
>cable as being the problem.
>
>I realize that  you measured the resistance between the
>positive battery cable and the jump start terminal but how
>did you get a reading of 0.000, most Multimeters are only
>good to 0.1 ohm resolution, and many are not very accurate
>down in the lower ranges. Going to 0.001 ohm resolution
>usually requires a 4 terminal meter. Does your meter allow
>you to zero out the resistance of the test leads? It only
>takes a  resistance of 0.02 ohms with 70 amps flowing to
>cause the voltage drop you described. Sometime under no
>load conditions things seem ok.
>
>HTH
> 
>Scott M.
>89 200TQ
>CHIPDIPPINDUDE
>> 
>> Test Conditions:
>>  Car running at idle.
>>  Multimeter shows 14.0 volts at Jump Start post under the
>hood
>> grounded to the Intake Manifold, Strut Bolt or Ground of 
>> Battery post.  Yes I ran a wire all the way back to the
>Battery
>> ground just to be sure.
>>  Multimeter shows 12.66 at Battery positive post when
>grounded to
>> the Intake Manifold, Strut Bolt or Ground of Battery
>post. 
>>  Thought this odd, so I ohmed out the connection from the
>battery
>> post to the Jump Start post and it showed 0.000.
>Some text deleted.....
>
>
>
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