So I got to work on some of the #4s from my treasure box. Below is a Dunlap #4. Not a particularly nice plane and it didn’t have a “major rust” problem. But there was some rust and plenty of grime. The iron looked like it had been used to open paint cans and drive screws.
That’s paint on the sole of the plane.
So everything got a dip in to an electrolysis bath, some scrubing with a wire wheel on a drill press, some scoth brite pads after the bath, sole lapping, and sharpening. I also flattened the chip breaker so it would sit flush with the iron. The sole of the plane had a weird twist to it, like it had warped. The initial strokes left a diagonal line across the sole from the scratch pattern from the sand paper that revealed freshly sanded metal and the metal that had not been touched by the sandpaper.
This was the first plane I’ve had that did that. Most have a hollowed out center, from years of use I suspect, but never a diagonal twist. Anyway, after a little extra work I got it all flat. The the sides were lapped to make it mostly flat. Finally all parts were sprayed with Top Coat to protect them from rust until a new buyer comes along.
These Dunlap planes don’t perform as well as Stanley. I took it for a test ride of a piece of red oak with the grain direction changing along the length of the board. You do feel a little bit of chatter while planing. but it still does a decent job with a good sharp iron.
The end result:
Next up….some of the block planes.
-- Just a man with his chisel.........