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  #14  
Old May 15th 09, 02:21 AM posted to rec.autos.tech
Hachiroku ハチロク[_2_]
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Posts: 2,364
Default Using Vaseline on Battery Terminals

On Thu, 14 May 2009 23:36:07 +0000, Tegger wrote:

> "Ulysses" > wrote in
> :
>
>>
>> "Don Stauffer" > wrote in message
>> ...
>>> jim evans wrote:
>>> > For years I've heard the advice to coat battery posts & terminals
>>> > with Vaseline to prevent corrosion. I've never done it because
>>> > it seems like the grease would act like an insulator and impede
>>> > electrical conduction between the posts and terminals.
>>> >
>>> > Do others who use it have any problems with conduction? If not,
>>> > why do you think that's so?
>>>
>>>
>>> While the vasoline MAY be squeezed out from within the connection,
>>> the normal way to apply it is AFTER the connection is made. That is,
>>> with the cable connected to the battery post, paint the vasoline
>>> around the connector, on all exposed lead and other metal.

>>
>> While I basically agree with this statement I always put it on before
>> connecting the cable

>
>
>
> I do this too. But then my cable connectors are aluminum, and have little
> barbs that bite into the battery post when they're tightened. Old-style
> lead clamps that are smooth on the inside may not provide enough "bite" to
> get through the grease film.
>
> However, since the posts are tapered, it's possible the bottom of the lead
> clamp is wedged on firmly enough to make proper contact in spite of the
> grease.
>
>
>
>
>> because I have lots of problems with corrosion

>
>
>
> Then your post-to-case seal is broken. This is usually due to some sort of
> mishandling or overtightening.


Like beating on it to make the car start?

> Treat your battery with kindness and care, and ye shalt remain corrosion-
> free, forevermore.


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