Snip:  I use a combination of Kroil, heat, judicious tapping, and patience

Bill,

I think the key word is patience.  Having worked in the automotive industry
for the majority of my life (not to mention lots of tinkering on cars with
my Dad as kid), I also have had both successful and unsuccessful
experiences using just about every "penetrating" oil product available at
some time or another.  That includes a few mechanic brews that probably
were more than dangerous.  The only thing that consistently has worked was
patience.  On really badly rusted and such things, I like to apply
something, then let it sit.  Then apply some more and let it sit.  Then
give it a bit of a test.  If it won't come loose, then try things like
heat, taking, etc.  Apply more penetrant,  and continue til it either
breaks loose, our breaks off.  One technique that a mechanic taught me that
has surprised me at how effective it is, is to actually try to tighten the
fastener before attempting to loosen it.  The point is to simply get it to
move no matter how little.  The idea of patience is the key word.  When you
get in a rush, that's when you make dumb mistakes.

Doc
On Jun 2, 2012 3:52 PM, "Bill Taggart" <w.taggart@v...> wrote:

>
>
> On 6/2/2012 12:09 PM, Steve Reynolds wrote:
>
>>        Tis true about penetrating oil being cheap.  But I must
>> respectfully vote against Kroil.  I used to order it all the time when I
>> was working in the lab.  I suppose I was a believer in the folksy cartoon
>> advertising they included with the order which purported wonderful
>> loosening stories.  The older guys in the lab were true believers and had
>> turned me on to it.  I bought all the varieties they had.  I never felt the
>> loosening love.  It just didn't ever unfreeze anything in an amazing way.
>>  I never bought another drop after leaving the lab and having to buy the
>> stuff on my own dime.
>>
>
> You must not be holding your mouth right. I've found Kroil to out-perform
> every other manufactured product I've tried - and I've used WD-40 (which is
> a joke when it comes to freeing rusted stuff), Liquid Wrench, PB Blaster,
> etc. Kroil has worked where other stuff did not. I use a combination of
> Kroil, heat, judicious tapping, and patience - repeating each step in
> sequence. I've unstuck some Excalibur-class stuck items that way.
>
> So yeah, I'm a big proponent of Kroil.
>
> I have yet to try the ATF/acetone blend, because I have plenty of Kroil
> about the shop, but that machine shop magazine I reported on way back
> indicated that the blend worked even better than Kroil.
>
> - Bill T.
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