View Single Post
Old 07-27-2011, 08:31 AM   #1
Jim Murphy
Registered User
 
Join Date: Mar 2009
Location: Atlanta (Dunwoody), GA
Posts: 461
My Ride: 2006 E46 330Ci ZHP
Rusty Nut Removal Comparison Test

For those of us who have suffered this frustration:

from About.com discussion on removing frozen fasteners.....

Rusty Nut Removal
For those of us who do our own restoration work, here's some interesting comparisons on penetrating oils sent by a friend. Happy knuckle busting!

Machinist's Workshop magazine actually tested penetrants for break-out torque on rusted nuts. Significant results! 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.

Hope that this helps.
Jim
Jim Murphy is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.