[Public-List] Bizzare electrical problem

Don Campbell dk.campbell at xplornet.ca
Sun Apr 7 08:17:44 PDT 2013


That is the quickest way to drain a battery that sits without being 
recharged,  and if you set a battery onto concrete,  this is the way 
charge is lost to ground, i.e. through condensation between the battery 
and the concrete.
Don
On 4/6/2013 2:31 PM, Gordon Laco wrote:
> That's good advice.   I once had a shock (pun intended) when I casually touched the probe of a multimeter to the inside skin of my boat while the other probe was touching the SIDE of one of my batteries.    There was a slight current.    I noticed everything was damp with condensation.   I dried everything I could reach and was able to kill the stray current, at least so far as my meter could detect.   If ever there was a good reason for battery boxes and good ventilation, I reckon that taught me.
>
> Gord #426 Surprise
> (In Kingston Ontario doing the Antique Boat Symposium)
>
> On 2013-04-06, at 1:58 PM, pat nolan <pnolan33 at yahoo.com> wrote:
>
>> A lifetime accumulation of salt can cause all sorts of electrical gremlins .. I once told a guy with all sorts of electrical problems to wash his engine room. He thought that I was nuts , but it cured his problems. Scrub in the hard to get at places . measure with an ohm meter to check for connections.
>>
>>
>> ________________________________
>> From: Glennb <brooks.glenn at comcast.net>
>> To: "alan.schulman at gmail.com" <alan.schulman at gmail.com>; Alberg 30 Public List -- open to all <public-list at lists.alberg30.org>
>> Sent: Friday, April 5, 2013 8:29 PM
>> Subject: Re: [Public-List] Bizzare electrical problem
>>
>> Alan,
>>
>> Thanks, interesting. The cooked wire does seem to be coincident with my engine start- first time since October.  So your suggestion seems feasible. The only thing I am having trouble visualizing is how the antenna coax is connected electrically to the ground.
>>
>> i didnt describe the set up completely accurately.  The antenna is actually bolted to the aft SS pushpit, which is thru bolted to the deck.  The antenna lead comes up through the taff rail.  Would the FG hull/deck conduct enough electricity to carry the resistance to the pushpit then back through antenna cable? i suppose the physical connection to the radio frame and radio ground would transmit the ground back to the engine through the master ground buss. Just not sure how the circuit could be made through the pushpit.
>>
>> I'll go check out the battery and starter ground etc tomorrow or Sunday.  The radio does have a circuit breaker on the positive, but no fuse on any of the negative side.
>>
>> Thanks,
>> Glenn
>> Dolce 318
>> Sent from my iPad
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