94 Camry - Battery positive terminal corrosion - how to replace

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Old 28 Feb 2006, 04:35 pm   #1 (permalink)
Ramakrishna Devisetti
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Default 94 Camry - Battery positive terminal corrosion - how to replace

Hi,

Recently, for 1994 toyota camry LE, it is taking 4 to 5 attemps to crank the
engine. It is very intermittent.
So far from your help I understood that it could be

1. Starter problem
2. Battery contacts / Cable problem

I took the starter to near by NAPA store and he tested on his bench test and
confirmed it is working great. And he suggested me to clean up the battery
contacts with Wire brush. For Few months it helped and the problem is
showing again.

I cleanup Battery contact and don't see any corrosion sludge around. So I am
guessing Positive terminal corrosion.

How to change the Positive terminal cable ??

Is it the cable from Starter to battery or any other points also to be
changed ??

Appreciate your help.

Regards,
Rama


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Old 28 Feb 2006, 05:17 pm   #2 (permalink)
timbirr@mailcity.com
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Default Re: 94 Camry - Battery positive terminal corrosion - how to replace


Ramakrishna Devisetti wrote:
>
> I cleanup Battery contact and don't see any corrosion sludge around. So I am
> guessing Positive terminal corrosion.
>
> How to change the Positive terminal cable ??
>
> Is it the cable from Starter to battery or any other points also to be
> changed ??


The links below should get you started. If you battery is having real
corrosion problems, it may be doing some excessive outgassing, which
could mean it is being overcharged -- doubtful from what you said -- or
it could be on its last legs.

Anyway, check the positive cable, as noted in the autozone link below.
And, if you need further cleaning instructions, the second link should
help.

Finally, the third link is a discussion about battery terminal sealer
spray. I have used this on my batteries for 20 years and have never had
a corrosion problem. Some people say they collect dirt, and as noted in
the article, they do, but it has never been aproblem for me....

I always "splurge" and buy a can of the spray-on battery terminal

http://www.autozone.com/servlet/UiBr...3d8004fcff.jsp

http://www.hotlib.com/articles/show....ning_Made_Easy

http://www.webbikeworld.com/motorcyc...minal-cleaner/

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Old 28 Feb 2006, 05:45 pm   #3 (permalink)
m Ransley
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Default Re: 94 Camry - Battery positive terminal corrosion - how to replace

I just has the same issue, intermittant no crank. For me it was the Neg
terminal, and cleaning terminals is not enough, you must clean inside
the terminal clamps on the cable, For apx 3$ get a tool that has a
Teriminal brush and Post brush built into a plastic housing. Its the
perfect tool to do the job easily and right. It is 2 tools in one with a
wire terminal brush hidden in the cap, and battery post brush in he
base. Wash the battery clean with soap and water being sure to clean
well around each terminal, A dirty battery conducts electricty around
the case , it can self discharge in 6 months with dirt on it. Also
recomended is grease on the terminals to keep air from acelerating
corrosion. If you have more time free on your hands mix up Baking soda
and water and pour it over the battery and down , it neutralises battery
acid. But dont get it in Fill Holes, Also Check that " maintenance free"
battery, most tops pop off, fill with distilled water to the bottom of
the O ring. If that does not help look at your Starter connections or
for broken battery cables, Yes in time they break inside and it is not
visable. Once I had to replace mine in the rain in the road, Not fun.

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Old 01 Mar 2006, 11:06 am   #4 (permalink)
Daniel
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Default Re: 94 Camry - Battery positive terminal corrosion - how to replace

You say you don't see any corrosion around the battery terminals, so
I'm not sure how cleaning them would help. Just make sure the battery
cables are not loose - check to see they don't wiggle with hand
pressure. If they're making good electrical contact and there's no sign
of corrosion, the first place I'd check for a starter problem would be
the copper contacts in the solenoid. These carry the full current when
starting, and do wear over time. They are inexpensive to replace and
the most common problem with older Toyota starters.
I'm guessing the bench test at NAPA with zero load might not have
revealed this problem.

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Old 01 Mar 2006, 02:10 pm   #5 (permalink)
m Ransley
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Default Re: 94 Camry - Battery positive terminal corrosion - how to replace

I did not see any corrosion either, but remove the terminal, it is
inside where there is contact of battery to cable.

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