Griff2002

Need to remove the door sill plate but one of the screws is frozen solid (driver side - 2nd one from the front door jamb). I can't see a way to spray penetrating oil on it. Any suggestions?

TimAT

Spray the head and hope it'll soak in or round up your drill and a 1/8 bit.

roadblock69

To remove the ones in my car, I used an impact screw driver. I simply placed the appropriate bit in the driver, gave the screw driver a firm CCW twist and lightly tapped the impact driver. Worked very well for me. I would not hit the impact driver real hard, the screws are in fiberglass, if memory serves me.

Tom454

One of mine snapped off as well. They go throught the fiberglass into the metal support. In retrospect, I should have done as suggested above... plenty of penetrating oil and light hits with an impact screwdriver. I didn't know any better at the time. Sooo... only one is snapped off. The rest I removed more carefully.

Griff2002

Sounds like a common problem. I'll keep soaking it and try your suggestions.
The others were all different ranging from completely stripped to perfectly normal.

thanks

Indiancreek

I drill them out with left hand drill bits. They either back out or get drilled out. Either way they come out.

7T1vette

Those mild steel screws are likely rusted permanently into the channel. Try an E-Z-Out or an impact driver to remove the screw. When that fails, just drill it out with a drill that is just a bit larger than the screw shank. Drill it all the way through, if you can.

Then, fill that hole...and a gob on the underside of it...with JB Weld stick epoxy. Let harden for 24 hours, then put door sill in place and mark/drill new hole for the screw. When you install the sill, don't tighten with much torque...just enough to hold it in place. It will be fine. And, if you use S.S. screws, they will never rust again!

augiedoggy

I had to fill my holes with epoxy as the previous owner used giant sheet metal screw that of course were too large and did not sit flush.... I used a clear expoxy though and have yet to screw down the new sill plates till after the repaint.

bpassmore

For years I've used a "poor boys" impact tool. Clean the screw grooves where the screwdriver fits, place the screwdriver, tap with a hammer while twisting the driver to remove, you may also need to twist in the opposite direction several times , but they will come out. Don't need too much force on these.

Griff2002

I had never heard of an impact screwdriver until yesterday. Bought a cheap one at Harbor Freight today and that did the trick. Hope I don't have too many more opportunities to use it.

Thanks again all who posted.

TimAT

Those cheap ones from Harbor Freight work every bit as well as the $$$$ form Snap-on

I forget about using the one I have- working on big airplanes for years, I have a similar deal, but it fits an air powered rivet gun.