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Grot
10-01-2009, 05:42 AM
Found this on a Ranger forum, thought some of you may be interested.


This was posted on several other boards that I frequent...thought I'd bring it over here and share...

" Some of you might appreciate this. Machinist's Workshop magazine tested penetrants for break out torque on rusted nuts.

They are below, as forwarded by an ex-student and professional machinist, Bud Baker.

They arranged a subjective test of all the popular penetrants with the control being the torque required to remove the nut from a "scientifically rusted" environment.

*Penetrating oil ..... Average load*
None ...................... 516 pounds
WD-40 ................... 238 pounds
PB Blaster ............... 214 pounds
Liquid Wrench ......... 127 pounds
Kano Kroil .............. 106 pounds
ATF-Acetone mix.......53 pounds

The ATF-Acetone mix was a "home brew" mix of 50 - 50 automatic transmission fluid and acetone. Note the "home brew" was better than any commercial product in this one particular test. Our local machinist group mixed up a batch and we all now use it with equally good results. Note also that "Liquid Wrench" is about as good as "Kroil" for about 20% of the price. "

Shadowlife25
10-01-2009, 10:17 AM
Great find and even better info!

I will give you reps for this one. It is well deserved.

Grot
10-01-2009, 03:28 PM
Why thank you mario

Nitro_Alltrac
10-01-2009, 05:47 PM
+1 to what Mario said!

Rick89GTS
10-05-2009, 08:20 AM
Interesting study.
Only problem is acetone is nasty stuff and kills your lungs. Think I'll stay with the Liquid Wrench.

Mr. Babb
10-05-2009, 02:04 PM
Interesting study.
Only problem is acetone is nasty stuff and kills your lungs. Think I'll stay with the Liquid Wrench.
not to mention atf all over everything,

one of my buddies gives me kroil fo freez

lalojamesliz
10-05-2009, 11:03 PM
thime to go buy some Liquid Wrench and throw away my PB Blaster :) thank you Grot

Luni
10-06-2009, 01:52 AM
Another problem with the homebrew stuff is how do you get it pressurized to spray it?

Seems like liquid wrench is the shimdizzle.

donteatbugs
10-06-2009, 02:11 AM
i use a oil called knocker loose. it works

DudeMan
10-06-2009, 02:57 AM
That's good to know, thanks for sharing.

I'm almost out of PB Blaster but I'll be picking up Liquid Wrench next time.

85gtsblackman
10-06-2009, 05:00 AM
Another problem with the homebrew stuff is how do you get it pressurized to spray it?

:slap:


refillable zep type can of corse, as seen here

http://i.ebayimg.com/05/!Bb5v+SgBmk~$(KGrHqYH-EIEqu+s,!W0BKyMvJOGPw~~_12.JPG

i have 5 of em


put solution in, close lid, fill with air, spray

i love those things

alistair
10-06-2009, 06:36 AM
I've always used liquid wrench, love the stuff, couldn't ever find PB Blaster when I needed it, and now I'll stop looking.

Luni
10-06-2009, 04:49 PM
Hmm, never seen one of those Joe.

Send me one.

Rick89GTS
10-06-2009, 05:35 PM
A lots of mechanics use those; Ive seen them in plastic too.

Luni
10-06-2009, 06:09 PM
Im gonna have to see if I can find one around.

85gtsblackman
10-12-2009, 04:50 AM
i always wondered why liquid wrench seemed to work better than the rest

im putting it to the test atm now with day 2 of soaking the crank bolt on my 22r thats on the engine stand

its gonna work or im going to havta buy a more powerfull air gun, which i want anyway, my spare broke so now im down to a old but good strong napa impact

alistair
10-12-2009, 08:32 AM
i always wondered why liquid wrench seemed to work better than the rest

im putting it to the test atm now with day 2 of soaking the crank bolt on my 22r thats on the engine stand

its gonna work or im going to havta buy a more powerfull air gun, which i want anyway, my spare broke so now im down to a old but good strong napa impact

Have you tried tapping it with a hammer? I've had some success with this. helps dislodge some of the rust and can help the lube penetrate a bit better.

I had to jump repeatedly on a 4 or 5 foot breaker bar to get my crank shaft bolt off of my celica so I know how much of a pain those can be.

85gtsblackman
10-13-2009, 06:25 AM
tried everything in the book to get it off

while i was at work my dad harnessed his marine strenth from NAM and chuck norris styled the breaker bar


bolt is free now


thats insane considering i was using a impact socket with a breaker bar and a sledge hammer before i went to work

VikingJZ
10-13-2009, 07:58 AM
EXCELLENT find.

My dad used that ATF-Acetone combo for something once, but I forgot about that until just now.

I actually have never used Liquid Wrench, but I think I'm going to since I will be doing the harmonic balancer on the Rolla soon. The difference between that and Kroil isn't enough to warrant a higher cost.

The Captain
10-13-2009, 03:28 PM
Dammit. I got all excited when I saw the name of this thread.

GT4SOM
10-13-2009, 03:33 PM
Awesome study! Liquid Wrench FTW! WD40 is so overrated.

KoreanJoey
10-13-2009, 07:58 PM
*shrug*

Have both the Snappy MG725 and an IR Titanium... one of them should be able to remove whatever I need.

Unarmed
10-13-2009, 08:24 PM
wd-40 wasnt designed to be a penetrating oil. It was designed to displace moisture...

The Captain
10-13-2009, 08:39 PM
wd-40 wasnt designed to be a penetrating oil. It was designed to displace moisture...

Water Displacement-formula 40.