Breaking Rusted Nuts & Bolts Loose! - Club Crosstrek | Subaru XV Crosstrek Forums
Club Crosstrek | Subaru XV Crosstrek Forums
 


Reply
 
Thread Tools Display Modes
 
Old 11-25-2015, 03:51 AM   #1
Hero Member
 
billybob's Avatar
 
Join Date: Dec 2013
Posts: 611
My Vehicle: Subaru Crosstrek 2013 Orange, Toyota Tacoma 2005
Default Breaking Rusted Nuts & Bolts Loose!

Found this to be an interesting article, on what to use to break loose those rusted nuts and bolts. "Machinist's Workshop" recently published information on various penetrating oils. The magazine reports they tested these products for "break out "torque" on rusted nuts and bolts. A subjective test was made of popular penetrating oils, with the unit of merit being the torque required to remove the nut from a "scientifically rusted" bolt. Average torque load to loosen nut:

No Oil used ........................516 foot pounds
WD-40 ..................... ........238 foot pounds
PB Blaster .........................214 foot pounds
Liquid Wrench ......................127 foot pounds
Kano Kroil .........................106 foot pounds
ATF/Acetone mix...................... 53 foot pounds

The ATF/Acetone mix is a "home brew" mix of 50/50 automatic transmission fluid and acetone. Note this "home brew" released bolts 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 almost as good as Kroil for 20% of the price.ATF/Acetone mix is best, but you can also use ATF and lacquer thinner in a 50/50 mix. ATF = Any type of Automatic Transmission Fluid.

This version of the story was in one of the Military Vehicle Club newsletters

billybob is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-25-2015, 01:24 PM   #2
Site Team
 
AWDfreak's Avatar
 
Join Date: Oct 2012
Posts: 2,940
My Vehicle: 2014 Subaru XV Crosstrek 5MT
Default

I guess WD-40 isn't the best penetrating liquid for loosening rusted fasteners.

I should have used that 50:50 mix of ATF and acetone to remove the fog lights on my rust bucket Outback, friggin fog light studs broke off thanks to Michigan rust (don't buy a car from Michigan!)

Thanks for sharing, this'll be helpful for removing more stuck fasteners off my rust bucket Outback.
__________________
"Why would I want to profess my feelings for some 3D girl?" - Tomoya Aki from the anime Saekano
AWDfreak is offline   Reply With Quote
Old 11-25-2015, 02:34 PM   #3
Hero Member
 
billybob's Avatar
 
Join Date: Dec 2013
Posts: 611
My Vehicle: Subaru Crosstrek 2013 Orange, Toyota Tacoma 2005
Default

Since acetone eats paint. I suggest to try the ATF and lacquer thinner in a 50/50 mix. http://www.grainger.com/product/WESTWARD-Oil-Can-1EKE7?s_pp=false&picUrl=//static.grainger.com/rp/s/is/image/Grainger/1EKE7_AS01?$smthumb$
billybob is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-25-2015, 04:30 PM   #4
Member
 
Join Date: Nov 2015
Posts: 60
Default

Lacquer thinner is used to remove paint as well.........

WD40 is great at advertising, they product however is sub par. I use PB at home for just about everything as it breaks the rust up well. when I have broken down and rebuilt turbos I did run straight for the ATF, but in general I get the job done with PB and it is convenient and easy to work with. It also doesn't leave the mess Liquid wrench and ATF leave behind.
flipper66 is offline   Reply With Quote
Old 11-25-2015, 06:31 PM   #5
Senior Member
 
Cogen Man's Avatar
 
Join Date: May 2015
Posts: 318
My Vehicle: 2019 Limited/EyeSight
Default

Thanks for the post billybob. We use buckets of kroil at work.
__________________
2019 Limited with EyeSight.
Cogen Man is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 05:21 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.