[RE-wrenches] Battery corrosion issue

[Tump]

I personally would try to soak the offending post in a solution of baking soda or some other corrosion remover for a while and then gently tap the bolt on both sides. Continuing to do this will eventually loosen the bolt.This IS a thru bolt not something that is threaded. certainly one can drill it out using the step approach  1/8 " then 3/16 then 1/4 till you  get to 5/16. Gently tapping or drilling you should find this removal easier then you thought. Tump
On Jan 20, 2016, at 5:34 PM, Ray Walters wrote:

> The EZ out is for unscrewing a threaded connection,  I've spent a bunch of time with those only to have the EZ out break off in there too.  Then you've got a real mess of hardened tool steel.
> 
> I would first drill several small 1/8" holes in the lead around the circumference of the bolt.  Then, I think tapping or pressing it out is the way.   The wheel puller would probably work.  You'll end up with an enlarged hole that you can either use a bigger bolt, or washers to deal with.   
> 
> I agree some of the hardware that comes with cheaper L 16s, is inferior.  I've had plenty of those square heads come off with minimal torque.
> R.Ray Walters
> CTO, Solarray, Inc
> Nabcep Certified PV Installer, 
> Licensed Master Electrician
> Solar Design Engineer
> 303 505-8760
> On 1/20/2016 3:04 PM, Roy Rakobitsch wrote:
>> Yup, id pre-drill and use an ez-out, or use a flaring tool as a small press and drive it out.
>> 
>> RoyR
>> 
>> On Jan 20, 2016 3:54 PM, "Kristopher Schmid" <solman at legacysolar.com> wrote:
>> Greetings,
>> 
>> Do any of you battery gurus have a suggestion for a method of removing a bolt remnant that is corroded into a flag terminal.  Both sides snapped off flush with the flag.  I was thinking try to drill it out or maybe a small gear pulling tool?  I will never again use the non stainless hardware supplied by the manufacturer...
>> 
>> Picture attached for reference.
>> 
>> Thanks!
>> 
>> 
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