I'll show you what I did to restore the jointer plane to former glory.
- Belt sander
- Sanding paper
- steel brush
- Wood oil
- 2-3 hours time
Photo 1: The beginning
Photo 2: The end result
Step 1: Disassembly, sanding and sharpening
Rust, stains and inperfections mostly. And very importent, sharpening the blade.
To remove the stains and inperfections I used a belt sander. Be very carefull that you don't sand the bottom of the block plane. If this becomes wobbly your restoration process becomes much harder.
The parts you can't reach with a belt sander need some hand sanding. I used grit 100 first and finished with grit 180 sanding paper. The wood is very hard, so don't bother trying a grit 200+, it will take hours.
Sanding the wood took me about 1.5 hours, so don't be hasty if you wan't a nice result.
Using a steel brush I removed most of the rust from the metal parts. T0 give it a nice and shiny surface the belt sander (grit 100) is used again. To sharpen the blade grit 150 sanding paper is used. Be carefull not to change the angle of the blade while sharpening. For me the blade is sharp enough. If you need it even sharper, please read http://www.instructables.com/id/Sharpening-a-chisel/?ALLSTEPS