Showing posts with label machine shop. Show all posts
Showing posts with label machine shop. Show all posts

Wednesday, October 13, 2010

Penetrating Oils Compared

Machinist's Workshop magazine is reported to have tested penetrants for break
out torque on rusted nuts. (I'm waiting for vevrification)

Significant results! 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. A local machinist group mixed up a batch and 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.

Monday, February 23, 2009

More machine shop wallpaper






The Craftsman tool shows how a machine can either be improved, or repaired, to better than original with a bit of tool know how. That center punch wouldn't be there if the machine's design had been adequate, and it's still there because it can handle the job.









http://justacarguy.blogspot.com/2009/02/high-performance-engine-building.html for the wallpaper quality photos I thought you might like, and thanks to J Bittle for the open house tour of the JBA machine shop!