I have a Stanley #5 Type 9 with a frog that has the top portion (with the lateral adjuster) broken off. I’m wanting to turn it into a scrub plane, but having trouble with the frog / mouth opening. If I move the frog back to open the mouth, I can’t get the blade to advance enough. The screw on the chip breaker starts to contact the frog and won’t advance any more. So the furthest back I can have the frog with the blade still advance is basically set up as a smoothing plane, barely any opening.
Did Stanley change the chip breaker design and maybe I have the wrong one?