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felt pads don't work #4443587
06/28/17 09:29 AM
06/28/17 09:29 AM
Joined: Nov 2009
Posts: 4,941
Houston, Texas
motor_oil_madman Offline OP
motor_oil_madman  Offline OP
Joined: Nov 2009
Posts: 4,941
Houston, Texas
I looked under the hood a few days ago and it looks like the acid actually ate away at the negative battery terminal. It might look worse than it is, idk. I keep forgetting to clean it off. The battery on the other side is clean. What happened? I've been using felt pads and battery grease for a long time and I thought it cured this problem.


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: felt pads don't work [Re: motor_oil_madman] #4443594
06/28/17 09:33 AM
06/28/17 09:33 AM
Joined: Jun 2003
Posts: 5,921
Illinois
SHOZ Offline
SHOZ  Offline
Joined: Jun 2003
Posts: 5,921
Illinois
If indeed the acid ate away at the lead terminal it was a very concentrated form. This could be from water evaporating from the acid that is leaking and absorbed by the felt pad.


2008 Hyundai Accent 1.6L 5 sp manual hatchback
2010 Hyundai Genesis Coupe Track 2L Turbo 6sp manual
Re: felt pads don't work [Re: motor_oil_madman] #4443609
06/28/17 09:47 AM
06/28/17 09:47 AM
Joined: Sep 2015
Posts: 1,526
USA
mk378 Offline
mk378  Offline
Joined: Sep 2015
Posts: 1,526
USA
If the seal in the battery is bad, it will leak more acid than the pad can handle.

Re: felt pads don't work [Re: motor_oil_madman] #4443622
06/28/17 09:56 AM
06/28/17 09:56 AM
Joined: Oct 2014
Posts: 11,844
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 11,844
Idaho
Time for a new battery and go from there. Exide battery?


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: felt pads don't work [Re: motor_oil_madman] #4443628
06/28/17 10:02 AM
06/28/17 10:02 AM
Joined: Apr 2009
Posts: 222
Reno, Nevada
Langanobob Offline
Langanobob  Offline
Joined: Apr 2009
Posts: 222
Reno, Nevada
I've been running AGM batteries in my F250. Pricey but no corrosion. I think that well maintained flooded batteries may last longer but the batteries seem to be holding up fine.

Re: felt pads don't work [Re: motor_oil_madman] #4443635
06/28/17 10:07 AM
06/28/17 10:07 AM
Joined: Nov 2009
Posts: 4,941
Houston, Texas
motor_oil_madman Offline OP
motor_oil_madman  Offline OP
Joined: Nov 2009
Posts: 4,941
Houston, Texas
Will they warranty that? I swear I had autozone put these batteries in not too long ago. Actually this set has already been warrantied.

Last edited by motor_oil_madman; 06/28/17 10:08 AM.

2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: felt pads don't work [Re: motor_oil_madman] #4443699
06/28/17 11:07 AM
06/28/17 11:07 AM
Joined: Nov 2009
Posts: 4,941
Houston, Texas
motor_oil_madman Offline OP
motor_oil_madman  Offline OP
Joined: Nov 2009
Posts: 4,941
Houston, Texas
A leaking battery post that is.


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: felt pads don't work [Re: motor_oil_madman] #4443707
06/28/17 11:13 AM
06/28/17 11:13 AM
Joined: Sep 2015
Posts: 1,526
USA
mk378 Offline
mk378  Offline
Joined: Sep 2015
Posts: 1,526
USA
They will but it would have to be a pretty big obvious leak. Also they could accuse that you broke it by external force on the post.

Re: felt pads don't work [Re: motor_oil_madman] #4443710
06/28/17 11:14 AM
06/28/17 11:14 AM
Joined: Sep 2004
Posts: 7,526
Marshfield , MA
andyd Offline
andyd  Offline
Joined: Sep 2004
Posts: 7,526
Marshfield , MA
I made a set of felts and soaked them in motor oil. They are on their second battery. Thanks to hanging here, I use a 1/2 amp floater in an attempt to keep the battery healthy. It is a 5 bucker from Harbor Freight. Seems to be working. grin2


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2
Re: felt pads don't work [Re: motor_oil_madman] #4443721
06/28/17 11:17 AM
06/28/17 11:17 AM
Joined: Nov 2009
Posts: 4,941
Houston, Texas
motor_oil_madman Offline OP
motor_oil_madman  Offline OP
Joined: Nov 2009
Posts: 4,941
Houston, Texas
I know in the winter time my abs and parking brake light comes on a second time after starting and that's when I know the batteries are weak. It also will throw a transmission code, but I forgot what it is. It hasn't done any of that yet though.


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: felt pads don't work [Re: motor_oil_madman] #4443829
06/28/17 12:36 PM
06/28/17 12:36 PM
Joined: Mar 2012
Posts: 1,277
San Antonio, TX
E150GT Offline
E150GT  Offline
Joined: Mar 2012
Posts: 1,277
San Antonio, TX
I use felt pads and dielectric grease. Also don't tighten the terminals real tight and make sure the battery is bolted down properly.
I would have to assume the post got torqued enough to break the seal. Sometimes when trying to pry a stuck terminal you can break the post sel if you're not careful.


1984 Mercedes-Benz 300SD - 100k
1995 F150 XL 4.9 reg cab 5MT - 251k 5w30
2016 Mazda6 Touring 6MT - 57k 10w30
2006 Buick Lucerne CXL 3.8 31k 5w30
Re: felt pads don't work [Re: motor_oil_madman] #4443928
06/28/17 01:49 PM
06/28/17 01:49 PM
Joined: Jan 2008
Posts: 10,670
OH
SatinSilver Offline
SatinSilver  Offline
Joined: Jan 2008
Posts: 10,670
OH
Get a Value one at Walmart for $48 and for an extra $3.50 they do the NOCO treatment which includes felt washers.

If spending around the $100 mark I'd go to Batteries Plus for a Duracell/East Penn battery. Coming up on the 5 year mark for the Rural King Exide battery. Had the NOCO treatment done and no more green fuzz on the positive terminal. Clean as a whistle.

Last edited by SatinSilver; 06/28/17 01:50 PM.
Re: felt pads don't work [Re: SatinSilver] #4444076
06/28/17 04:07 PM
06/28/17 04:07 PM
Joined: Nov 2005
Posts: 106
justin , tx
87sammy Offline
87sammy  Offline
Joined: Nov 2005
Posts: 106
justin , tx
I just use Plano wheel bearing grease all mine never any problems.

Re: felt pads don't work [Re: motor_oil_madman] #4444116
06/28/17 04:53 PM
06/28/17 04:53 PM
Joined: Dec 2003
Posts: 9,801
Florida, Cape Coral
Eddie Offline
Eddie  Offline
Joined: Dec 2003
Posts: 9,801
Florida, Cape Coral
+1 for BATTERIES PLUS. Dekta batters seem to be very well made. ed


CX5 Touring 2.5L :-)
Re: felt pads don't work [Re: motor_oil_madman] #4444595
06/29/17 07:57 AM
06/29/17 07:57 AM
Joined: Mar 2010
Posts: 5,356
Iowa
The_Eric Offline
The_Eric  Offline
Joined: Mar 2010
Posts: 5,356
Iowa
You want to know what works? Buy a battery that doesn't barf it's acid all over in the first place.

#1 worst is Exide. #2 is JCI. They do it too- maybe 70% of them do it, whereas at least 80% of Exide batteries do.

East Penn/Deka is the only battery that I've seen that consistently doesn't puke it's acid all over.

Now there are a few caveats- any battery will puke acid if you hulk out on the cable bolt and over tighten it! You'll either crush the post and break the seal, or you'll torque it (think bend it sideways) so much that the seal is broken that way. Severe over charging will do it to. Also, when it comes to East Penn made batteries, they still have a few battery BCI numbers out there that have a conventional cell cap on them (only applies to auto/light truck- AG and heavy truck is a different animal). BCI group 58 for Fords and 27 for Dodge comes to mind.


2005 Lincoln Aviator 4.6 DOHC
2000 Honda Accord 2.3
2001 Hyundai Elantra 2.0
1979 Ford F-150 351M
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