I may have asked this before, but I’m asking again for a friend who is going to pull his exhaust studs out.
There was a product here a lot of folks like, which is preferred to products like PB Blaster. I can’t remember the name of it. So I’m asking again! Thanks! Victor
Actually, for the header bolt removal he’s going to use a penetrant applied the night before, then a start up the next day to warm the header bolts & Head &then a second penetrant treatment to cool the studs down while leaving the header warm. Hopefully, this combination will give him the release he needs without breaking any of the exhaust header bolts. He may also add a double nut to the mix so he has a bigger bit of leverage to turn the header bolts. Victor
All penetrating oils are flammable, including PB, WD, or whatever. Acetone is so volatile that it will go away on its own in mere minutes, leaving the ATF or whatever behind. Using heat on top of flammable oils simply causes the oil to flash. Done it most of my life and still have most of my hair. What you would not want is the the whole can to go bang, so use the spray or dope of your choice, put the can away, clean up slop, let it sit overnight or for as long as your patience lasts, and heat away. Just be aware that residual oil can flame up, so have a backup plan handy.