Corrosion on battery terminals - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Interior | Electrical | ECU
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto EscrowInsurance

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 02-06-2003, 17:55   #1 (permalink)
Powered by HAD
 
AusXH's Avatar
 
Join Date: Jul 2001
Location: Central Coast NSW
Age: 32
Posts: 1,328
Red face Corrosion on battery terminals

Perhaps one of the stupidest questions to ask, but anyhow...

What causes the corrosion to form on the battery terminals and how can I prevent it?

What confuses me is I have had to rid it from the battery on my XH numerous times trying different things like cleaning with baking soda then coating them generously in grease, yet it grows straight back!

Then there's my bmw paddock basher which has the sloppiest of connections to the battery and has never been cleened in I dont know how long, yet the terminals stay corrosion free.

Someone please enlighten me!
__________________
PVTXR01
AusXH is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 02-06-2003, 18:01   #2 (permalink)
Crikey
 
Blurter's Avatar
 
Join Date: May 2002
Location: Sydney
Posts: 2,015
I've found petroleum jelly to be successfull in the past (after cleaning with baking soda).
Blurter is offline   Reply With Quote
Old 02-06-2003, 18:23   #3 (permalink)
E Series Chick Supremo
 
Mother Nature's Avatar
 
Join Date: Sep 2001
Location: MBFNW
Age: 47
Posts: 2,072
Top question AusXH......saved me from asking it .......

I have the same trouble in the XF.......
__________________
94 ED XR8 Sprint


Check out the OzECruisers Inc. website HERE

FF Lynch Mob BITCH
O.F.R #65
Mother Nature is offline   Reply With Quote
Old 02-06-2003, 18:40   #4 (permalink)
Registered User
 
snavy's Avatar
 
Join Date: Jan 2002
Location: mebourne
Posts: 1,969
go buy one of those battery maintanance kits at repco or something. They come with the brush etc, and some liquid stuff you put over the terminals. I did this, and hasnt corroded in over a year.
snavy is offline   Reply With Quote
Old 02-06-2003, 19:15   #5 (permalink)
96 EF Futura
 
SiX_iN_a_RoW's Avatar
 
Join Date: Aug 2002
Location: Now Residing in Brisbane
Age: 30
Posts: 2,494
another cheap way is vasoline
__________________
Lets go find that Hotdog tree I planted

Lowered EF Futura
Black Steelies ( too cheap to buy proper mags )
SiX_iN_a_RoW is offline   Reply With Quote
Old 02-06-2003, 20:33   #6 (permalink)
plarsson
Guest
 
Posts: n/a
Read

The "Coral growth" on battery terminals is a combination of the following.

a/ Dissimiliar metals of the battery and connecting terminals.

b/ A cloud of acidic Hydrogen gas that is created when the battery is being charged. Even on so called "sealed " batteries. Very important not to smoke around a "gassing" battery.


Basically what happens is that as the battery gasses off whilst being charged, the moist gas acts as a catalyst on the dissimiliar metals (Lead battery terminal & Tin plated Copper connecting terminal). The re******t chemical reaction is the "Coral" growth around the terminals. If its left alone it will convert all the Tin/Copper terminals to a bluey/white salt (the Coral growth) (Its been too long since I went to High School so I can't recall all the detail of what's what, sorry) now the gas escapes from the battery's vented caps as well as from around the terminals.

16 years around Taxis has taught me that although Vaseline or petroleum jelly is good for earlier cars with lower under bonnet temperatures. Later model (EA on) Falcons underbonnet temperatures are such that "Vaso" melts and evaporates very quickly. High Temp Wheel bearing grease works reasonably well. There is a Tar based spray on anti corrosion product but it tends to dry out after a while and the acid creeps underneath any way.

You will find a car that is driven constanly will create more growth than one thats parked all week. Once upon a time it used to form part of a weekly routine to open the bonnet of our cars and clean, check and adjust things as necessary, that was called "Routine Maintenance". Today its rare to open a bonnet between 15000k services (Known as "Risk Management") because the cars today are so genuinely reliable.

The best method of cleaning it up is as follows; Boil the jug, then pour the boiling hot water onto the terminals. Sprinkle some baking soda onto the terminals and wait till the fizzing stops. Pour the rest of the Boiling water over the terminals. Stand back for 5 minutes to allow to cool. Now undo the terminal bolts and clean and inspect the connecting terminals. Replace any terminals that are obviously weakened. With some fine emery cloth clean up the terminals and then thinly smear a film of wheel bearing grease onto the battery post and the terminals. Replace the bolt if obviously affected by corrosion. Reassemble terminal connections.

If your battery is getting older then it will gas off more and be more suseptible to the coral growth. I remember a time when car batteries lasted virtually the half life of a car about 6 to 8 years. Today your lucky if it lasts the warrenty period of two years.

If your new battery gasses off furiously then you should check the charge rate of the alternator. If its above 14.4volts then your regulator has gone rogue and needs to be replaced. I recall a batch of ED alternators when used in heavy duty Taxi/Cop applications needed to have their regulators changed for this reason.

Hope this helps.






  Reply With Quote
Old 02-06-2003, 20:41   #7 (permalink)
Powered by HAD
 
AusXH's Avatar
 
Join Date: Jul 2001
Location: Central Coast NSW
Age: 32
Posts: 1,328
Thanks for going to the trouble plarsson, quite a detailed and helpful explanation.
__________________
PVTXR01
AusXH is offline   Reply With Quote
Old 02-08-2003, 06:00   #8 (permalink)
NB & NCII V8 Fairlanes
 
Join Date: Feb 2001
Location: Bibra Lake Western Australia
Posts: 2,816
John Deere (the tractor people) sell some very good spray on stuff that essentially paints the terminals with an insulating shield and prevents corrosion happening (NOCO NCP-2 John Deere Part # TY-15730). I use it and it works; if you're in the city you can get it at lawnmower places that sell John Deere ride on mowers. They also sell a terminal cleaner (NOCO E 403 Battery Terminal Cleaner Part # Ty15732). Pyroil/Valvoline also make a similar spray you can get from Marlows/Rocca Bros. If colour is an issue the NOCO stuff is bright red while the Pyroil is bronzey brown.
__________________
Regards Blue
Aussiblue is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Interior | Electrical | ECU



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Computer and battery disconnection EA1191 Interior | Electrical | ECU 4 10-11-2003 19:14
Dual battery setup complete! (PICS) The Goodz Interior | Electrical | ECU 29 10-09-2003 01:06
Battery Change = Bad Idle ViGiLaNtE Interior | Electrical | ECU 27 01-21-2003 00:02
Ideas to keep a battery charged. Aussiblue Interior | Electrical | ECU 16 10-06-2002 07:46
Battery Suggestions! Nomad Ford Crown Victoria | Mercury Marauder | Grand Marquis | P71 1 08-04-2001 06:47

Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 19:23.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.