94 Corolla left battery terminal (positive) becomes corroded frequently, any idea why?

94 Corolla left battery terminal (positive) becomes corroded
frequently, any idea why?

I've had this problem for a good 5 years or more. Never figured out
why this keep happening.

I'd say it happens in a month or two. Right terminal seems fine.
Maybe it's the battery itself? Seems to work fine. About once a year
the car won't start, and cleaning this off solves the problem.

Today I noticed it before it became an issue. Just wondering why it
happens so fast?

I was looking for a Corolla newgroup, but was unable to find one. Post
a link if you know of one.

Thanks

After cleaning the terminals really well, try applying some white lithium
grease to slow any corrosion from building up again. In the past, I just
applied a bit of Vaseline to the terminals and it did the trick. I don't
know what others would have to say about that. The idea is to prevent air
from getting to the terminals.


"Nate Goulet" <askifyouwant@yahoo.com> wrote in message
news:1mtdh2lcjs12rur41j5oeer2s03v83jue3@4ax.com...[color=blue]
> 94 Corolla left battery terminal (positive) becomes corroded
> frequently, any idea why?
>
> I've had this problem for a good 5 years or more. Never figured out
> why this keep happening.
>
> I'd say it happens in a month or two. Right terminal seems fine.
> Maybe it's the battery itself? Seems to work fine. About once a year
> the car won't start, and cleaning this off solves the problem.
>
> Today I noticed it before it became an issue. Just wondering why it
> happens so fast?
>
> I was looking for a Corolla newgroup, but was unable to find one. Post
> a link if you know of one.
>
> Thanks[/color]

"Nate Goulet" <askifyouwant@yahoo.com> wrote in message
news:1mtdh2lcjs12rur41j5oeer2s03v83jue3@4ax.com...[color=blue]
> 94 Corolla left battery terminal (positive) becomes corroded
> frequently, any idea why?
>
> I've had this problem for a good 5 years or more. Never figured out
> why this keep happening.
>
> I'd say it happens in a month or two. Right terminal seems fine.
> Maybe it's the battery itself? Seems to work fine. About once a year
> the car won't start, and cleaning this off solves the problem.
>
> Today I noticed it before it became an issue. Just wondering why it
> happens so fast?
>
> I was looking for a Corolla newgroup, but was unable to find one. Post
> a link if you know of one.
>
> Thanks[/color]

The corrosion is the result of acid fumes escaping from inside the battery
case. If the case fits very tightly around the metal battery post, then the
fumes escape slowly. If the case fits loosely, then the fumes will escape
more quickly. Auto parts stores sell colored fabric washers that fit over
the battery posts, underneath the clamps. This is one of the few gimmicky
things that work well. You can also purchase battery post protectant the
works like spray paint. Spray the area where the plastic battery case
surrounds the post liberally, then put one of those fabric washers, and the
problem should be reduced somewhat.
--

Ray O
(correct punctuation to reply)