Stripped Out Screw Hole

[Meanwhile]

So I need some suggestions on how to repair this hole so a screw can get a bite.

My first thought is to use some West systems with a stiffening filler to level out the out old hole, then use a 2" wide piece of glass cloth on the bottom and top of this corner, then follow that with a 1" strip of glass cloth top and bottom. I'd trim to fit. That would give me four layers of glass for a screw to hold.

Any suggestions? The green Frog tape is to add contrast to the photo. Click to enlarge photo.



This started off as a project to drill out other stripped screw holes to 1/2" and then fill in with thickened epoxy. I have some moisture issues that I need to investigate as when I drilled I had some wet wood coming out. I'm not sure if my temporary cover failed and the rain water got in to the screw holes or if the wood is soaked. I'll have to drill a test hole to find out. These are located on the wood between the fuel tanks and the bilge hatch.

 

[jbrinch88]

So I need some suggestions on how to repair this hole so a screw can get a bite.

My first thought is to use some West systems with a stiffening filler to level out the out old hole, then use a 2" wide piece of glass cloth on the bottom and top of this corner, then follow that with a 1" strip of glass cloth top and bottom. I'd trim to fit. That would give me four layers of glass for a screw to hold.

Any suggestions? The green Frog tape is to add contrast to the photo. Click to enlarge photo.



This started off as a project to drill out other stripped screw holes to 1/2" and then fill in with thickened epoxy. I have some moisture issues that I need to investigate as when I drilled I had some wet wood coming out. I'm not sure if my temporary cover failed and the rain water got in to the screw holes or if the wood is soaked. I'll have to drill a test hole to find out. These are located on the wood between the fuel tanks and the bilge hatch.

Just use resin with West Systems filler.. Make it thick like peanut butter. Use something to make a shelf/base for the filler to lay down on out of plastic (it will not stick to the plastic). Once it cures pull off the plastic and sand/cut the filler to shape. You need to use an ovaling/countersinking bit instead of just widening up the whole hole when filling old holes. Use a few layers of tape on the opposite side of the hole so the resin/filler doesnt fall through.

I use West Systems highest density filler for things like this. Not the lighter filler used for fairing.

 

[Meanwhile]

Thanks for the tip on the shape of the holes.

Randy