Alternator is overcharging, need to rebuild it!!!

[oldpilgrim]

http://www.tractorbynet.com/forums/...432-alternator-overcharging-need-rebuild.html

Two hrs before.

 

[DK35vince]

Mine charges at around 13.9 at idle and 14.8 when throttled up.

 

[alia176]

Didn't you believe those who posted in the earlier thread you made?

After I read your post I was puzzled and found that I hit submit twice somehow! I'm unsure how to delete my other thread or this maybe an admin thing only.;

In any case, it sounds like my ALT is doing fine, just need to clean up the crud and spray the battery post with terminal protector. I do have those green and red anti-corrosion pads but they are not able to keep up with the rate of corrosion.

As someone stated already, the Mahindra batteries are notorious for this kind of buildup.

Thanks for the feedback fellas.

 

[SedonaDave]

After I read your post I was puzzled and found that I hit submit twice somehow! I'm unsure how to delete my other thread or this maybe an admin thing only.;

In any case, it sounds like my ALT is doing fine, just need to clean up the crud and spray the battery post with terminal protector. I do have those green and red anti-corrosion pads but they are not able to keep up with the rate of corrosion.

As someone stated already, the Mahindra batteries are notorious for this kind of buildup.

Thanks for the feedback fellas.

Clean with baking soda....and seal all connections....That will slow all corrosion down...

 

[dickfoster]

Clean with baking soda....and seal all connections....That will slow all corrosion down...

When mine goes, I'll replace it with one of these

Heavy Duty/Commercial Specifications – ODYSSEY battery

keep a maintenance charger on it when stored and not worry about it anymore. It'll cost like the dickens but it's worth it.

 

[Billrog]

Baking soda will clean the corrosion but you must not get any in the battery , a kettle of plain boiling water will also clean the post right up.

 

[alia176]

Yep output voltage is a function of the regulator not the rest of the alternator. If it was 14 something at RPM, that's normal and it's supposed to be that way. How accurate is your meter and are the batteries in it good? Some meters are so far out of calibration it's pitiful and some aren't worth a hoot right out of the box.

When mine goes, I'll replace it with one of these

Heavy Duty/Commercial Specifications – ODYSSEY battery

keep a maintenance charger on it when stored and not worry about it anymore. It'll cost like the dickens but it's worth it.

Those are nice batteries and I have some experience with them. However, batteries are consumable items to me so for some time now, I've been purchasing blem Interstate batteries for $45 (deep cycle, normal cycle, etc) at my local Interstate supplier. Everything from my rock crawler to the DD, they all sport the blems. However, I'll try to find a battery that fits in the same space but taller for more CCA and reserve capacity in preparation for a 5k winch installation.

Thanks for the feedback.

 

[carmedic310]

I agree with the baking soda in warm water to clean up all the corrosion.Been doing this for years.I also coat my terminals with either grease or silicone dieletric compound.As far as the corrosion all over the holdown and all are you sure its not from the batteries vent area rather than the terminals that is causing it

 

[dickfoster]

Those are nice batteries and I have some experience with them. However, batteries are consumable items to me so for some time now, I've been purchasing blem Interstate batteries for $45 (deep cycle, normal cycle, etc) at my local Interstate supplier. Everything from my rock crawler to the DD, they all sport the blems. However, I'll try to find a battery that fits in the same space but taller for more CCA and reserve capacity in preparation for a 5k winch installation.

Thanks for the feedback.

If you want more power in the same space then an AGM is your answer. They offer more charge density and more cranking performance than wet cells especially at cold temps, about twice per unit volume I think.

I've found that the Odyssey design offers more power for volume than the Optima design as the Optimas are spiral wound so wastes a lot of volume for nothing but air. Optima has started having a lot of problems lately, it seems they've started selling their label instead of batteries. At least many of my wheeling buddies have been complaining about them for a few years now.

I use a couple of Odysseys in my rockcrawler which includes heavy winching duties along with some welding too. Nothing sucks current like a fully loaded winch. My 8K winch typically hits its heat limit before the little PCL 1200 battery finishes dishing the power out, although it's usually helped out with a 100A+ alternator.

I don't mind spending a little extra money so I don't wind up stranded way out in the boondocks somewhere cause AAA ain't comin.
So far they've been holding up very well so they haven't been consumable for me. I'd rather buy something once rather than two or three times. I think over time you'll likely end up spending about the same money either way. In one lump or in several lumps, take your pick.

Another advantage of the AGMs is higher tolerance to vibration and shock not to mention being spill proof. You can install and forget them but you do have to at least keep them maintained with a charger like any other battery. No battery no matter how much you pay for it will tolerate abuse or neglect and live.
No messin with topping up and all that nonsense though since they're all hydrogen recombinant and sealed up tight so no corrosion problems either.

But hey, if the US Army is putting them in M1 Abrams tanks, then they are good enough for me and my stuff.
Note: Odyssey was previously the automotive end of Hawker Energy.

ODYSSEY battery - Design Advantages

 

[alia176]

If you want more power in the same space then an AGM is your answer. They offer more charge density and more cranking performance than wet cells especially at cold temps, about twice per unit volume I think.

I've found that the Odyssey design offers more power for volume than the Optima design as the Optimas are spiral wound so wastes a lot of volume for nothing but air. Optima has started having a lot of problems lately, it seems they've started selling their label instead of batteries. At least many of my wheeling buddies have been complaining about them for a few years now.

I use a couple of Odysseys in my rockcrawler which includes heavy winching duties along with some welding too. Nothing sucks current like a fully loaded winch. My 8K winch typically hits its heat limit before the little PCL 1200 battery finishes dishing the power out, although it's usually helped out with a 100A+ alternator.

I don't mind spending a little extra money so I don't wind up stranded way out in the boondocks somewhere cause AAA ain't comin.
So far they've been holding up very well so they haven't been consumable for me. I'd rather buy something once rather than two or three times. I think over time you'll likely end up spending about the same money either way. In one lump or in several lumps, take your pick.

Another advantage of the AGMs is higher tolerance to vibration and shock not to mention being spill proof. You can install and forget them but you do have to at least keep them maintained with a charger like any other battery. No battery no matter how much you pay for it will tolerate abuse or neglect and live.
No messin with topping up and all that nonsense though since they're all hydrogen recombinant and sealed up tight so no corrosion problems either.

But hey, if the US Army is putting them in M1 Abrams tanks, then they are good enough for me and my stuff.
Note: Odyssey was previously the automotive end of Hawker Energy.

ODYSSEY battery - Design Advantages

Great points and I can appreciate info from a retired EE. We both have Yota crawlers and are both EEs, what a coinkydink!! I've gone through Odyssey and DH Platinum in the past for my winching and welding duties and now settled on blems. Admittedly, I'm not too abusive on my batts on the Landcruiser like you I'm sure. Still, running a Warn M10k winch on a 7k pig does manage to strain the charging system, on rare occasion.

Thanks for the inputs, very valuable.