On Sat, 19 Jan 2013 21:22:01 -0600, "NotMe"  wrote:   
      
   >   
   > wrote in message   
   >news:kklmf8511poq2vkekc5n7oa53qo0ugmrcr@4ax.com...   
   >> On Sat, 19 Jan 2013 19:46:07 -0600, "NotMe"  wrote:   
   >   
   >>>>>>   
   >>>>>>>> All the visible connections look good.   
   >>>>>>   
   >>>>>>> Off the wall ideas.   
   >>>>>>>   
   >>>>>>> 1)    bad/intermittent connection between the negative battery   
   >>>>>>> terminal   
   >>>>>>> and either the block or the chasses.   
   >>>>>>>   
   >>>>>>> quick check connect a jumper cable between the block then chassis and   
   >>>>>>> the nag term of the battery.   
   >>>>>>>   
   >>>>>>> 2)   partial short/open in one or two legs of the alternator   
   >>>>>>> rectifier   
   >>>>>>> system.   
   >>>>>>>   
   >>>>>>   
   >>>>>> I've double-checked battery connections and ground wire.   
   >>>>>>   
   >>>>>> The alternator/rectifier is keeping the battery charged.   
   >>>>>   
   >>>>>Still does not preclude a partially functional alternator and more   
   >>>>>importantly one that can discharge a battery when the engine is off.   
   >>>>>   
   >>>>>   
   >>>>>   
   >>>>   
   >>>> EXTREMELY easy to check that, Connect voltmeter set to AC volts -   
   >>>> should show less than 1 volt.   
   >>>   
   >>>I don't see the logic of your test.   
   >>>   
   >>>   
   >> A bad diode will put ripple on the DC. The ripple is read by the AC   
   >> Voltmeter. It is a test that goes all the way back to 1960 and the   
   >> introduction of the alternator on Chrysler products at that time.   
   >   
   >Might then again might not put a measurable ripple on the DC much depends on   
   >the load and the battery condition.   
   >   
   Well, in over 35 years I have yet to find one with a bad diode I did   
   not catch, or a good one I called bad   
      
   --- SoupGate-Win32 v1.05   
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