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Old 21-09-2015, 15:16   #16
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Re: Wing nut stuck on battery terminal

I think a64pilot is referring to a nut splitter, which uses a screw action to drive a wedge against the side of the nut; as soon as the nut starts to split it becomes loose. No sparks will be created. You do have to hold the splitter to prevent torque from breaking the whole thing off the battery.
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Old 21-09-2015, 15:24   #17
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Re: Wing nut stuck on battery terminal

I vote PB Blaster as best at loosening siezed parts but try not to get it on your hands or you will be tasting it for a week everytime you get your hands near your nose, be very careful using open flame, power of hydrogen gas can not be understated particularly in enclosed environs, I also put a tiny dab of NeverSieze on steel threads of lug when going back together, another great "better living through chemistry" item but it also has exceptional "trackability".
You will find it everywhere if you get sloppy with it, on the dog, turtles swimming by, on the moon etc.
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Old 21-09-2015, 16:32   #18
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Re: Wing nut stuck on battery terminal

This thing
http://www.sears.com/craftsman-nut-c...p-00904772000P
Sears calls it a "Nut Cracker" apparently, us Rednecks down south call them nut busters, but whatever if you have an excessively corroded nut, it's about the only way to get it off, even using a "smoke wrench" doesn't always work, but the nut spitter, buster or whatever does.
Smoke wrench is an acetylene torch if anyone was wondering.


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Old 21-09-2015, 19:52   #19
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Re: Wing nut stuck on battery terminal

Whenever a fastener is stuck in place. Soak with penetrating oil then try actually tightening it a little, then loosen. If you get any movement at all just keep repeating this method, tighten then loosen. It should eventually come off. The risk of just getting a bigger set of vise grips is that you can possibly turn the battery post itself, causing an acid leak where it goes into the batter case.
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Old 21-09-2015, 20:32   #20
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Re: Wing nut stuck on battery terminal

The WD in WD-40 stands for water displacement. It's designed to displace water in flooded electrical equipment. It has very little lube quality. It got it's start after a hurricane in Texas.
There are a number of products designed to penetrate stuck threads. Any of them will do a better job than WD-40.
But I go with a64pilot... A nut buster works every time.
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Old 21-09-2015, 20:58   #21
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Re: Wing nut stuck on battery terminal

Don't put another wing nut on when you repair this circuit. Wing nuts no longer comply with ABYC standards.
see No wing nuts on batteries!
Best of luck.
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Old 21-09-2015, 21:12   #22
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Re: Wing nut stuck on battery terminal

Hydrogen gas got a bad rap with the Hindenburg. Hydrogen burns colorless. It was the flammable fabric dope that actually caught fire. I'd be much more worried about propane and other heavy gases in your bilge, and possibly the propellant in the PB Blaster or WD40. Hydrogen is light, and finds its way up and out fairly quickly.

Stop charging, ventilate, and go to work on it.
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Old 21-09-2015, 23:42   #23
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pirate Re: Wing nut stuck on battery terminal

A nut buster will not work on Stainless Steel, just as it won't work on any copper alloys.
You will find yourself in a worse position after trying.

Lloyd

Quote:
Originally Posted by a64pilot View Post
This thing
Sears.com
Sears calls it a "Nut Cracker" apparently, us Rednecks down south call them nut busters, but whatever if you have an excessively corroded nut, it's about the only way to get it off, even using a "smoke wrench" doesn't always work, but the nut spitter, buster or whatever does.
Smoke wrench is an acetylene torch if anyone was wondering.


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Old 22-09-2015, 04:40   #24
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Re: Wing nut stuck on battery terminal

I appreciate all the replies. My situation is that the post's connection to the battery has been compromised due to too much man-handling, even after lube attempts. I wasn't that in love with the battery anyway as it is many years old and I almost considered replacing it before I crossed the GOM a few months ago. I can get it out of its compartment but not very far as I don't want to mess with battery cable; I will be going medieval on it with my dremel's grinding wheel and then buying a new one.
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Old 22-09-2015, 04:50   #25
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Re: Wing nut stuck on battery terminal

Quote:
Originally Posted by Lepke View Post
The WD in WD-40 stands for water displacement. It's designed to displace water in flooded electrical equipment ...
FWIW:

In 1953, a fledgling company called Rocket Chemical Company and its staff of three set out to create a line of rust-prevention solvents and degreasers for use in the aerospace industry.

Convair, an aerospace contractor, first used WD-40 to protect the outer skin of the Atlas Missile from rust and corrosion.

A few years following WD-40's first industrial use, Rocket Chemical Company founder Norm Larsen experimented with putting WD-40 into aerosol cans, reasoning that consumers might find a use for the product at home as some of the employees had. The product made its first appearance on store shelves in San Diego in 1958.

In 1961 the first full truckload order for WD-40 was filled when employees came in on a Saturday to produce additional concentrate to meet the disaster needs of the victims of Hurricane Carla along the U.S. Gulf coast. WD-40 was used to recondition flood and rain damaged vehicles and equipment.

WD-40 History | History and Timeline of WD-40 Company
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Old 22-09-2015, 05:31   #26
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Re: Wing nut stuck on battery terminal

Quote:
Originally Posted by FlyingCloud1937 View Post
A nut buster will not work on Stainless Steel, just as it won't work on any copper alloys.
You will find yourself in a worse position after trying.

Lloyd

I didn't know that, I assume the SS is just too soft, so it crushes as opposed to cracking?
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Old 22-09-2015, 06:17   #27
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Re: Wing nut stuck on battery terminal

Quote:
Originally Posted by FlyingCloud1937 View Post
A nut buster will not work on Stainless Steel, just as it won't work on any copper alloys.

You will find yourself in a worse position after trying.



Lloyd

I wish I knew this before I recently successfully removed a SS nut using a nut buster.

Worked a charm - why wouldn't it?

Mark
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