donandmax
Mar 09, 2014Explorer
Tight screws
Who ever owned my rv before must have used epoxy or that red lock tite on the 4 screws that hold the a/c cover on because I used a big phillips head screw driver and cant budge them. I mean I have nev...
Gjac wrote:
My approach for screws that won't budge is as as follows. First try a screw diver with a wise grip or wrench for added leverage. If the screw driver tip comes out of the slots with the added torque I spray Kroil oil and let it sit over night and capillary action will allow the oil to penetrate on horizontal screws . You can put plastic under the screws to protect the rubber roof. If they still don't budge I use Matt's approach with heat except I don't have a high wattage iron so I heat the shank of an old screw driver with a propane torch and let the heat transfer to the screw. The glass transition temperature for most epoxies and polyesters is 350 degrees or less. As Matt said it does not take a lot of heat to break them free. They are only threaded into a piece of sht mtl that is .030 to .050 thick so there is not a lot of surface area to hold that screw into. Let us know how you are making out.