Anyone ever had problems with the shoes not backing off the drum--
in relation to grooves being worn in the b/plate?
You smell 'em and the drums sizzle.
My guess is the groove is from old shoes, so when the new shoes were installed, they want back off--the metal of the shoe just 'seats' in the wear spot.
Of course, adjustment is harder and imperfect.
May have the adjustment wrong because of the wear, either way, bad.
New b/plate or some filler welding and grinder?