I run and maintain a 1964 Singer Gazelle and this has a disc/drum setup. The rear drums do have a hole in them for a flat-bladed screwdriver to go through and make adjustments, but unfortunately they don't quite line up with where the adjuster sits on the end of the caliper. I just take the drum off and click it either way I need to.
The later Singers (and Rootes Group cars in general) moved to self-adjusters, but as others have pointed out they still need manually adjusting. NOS Lockheed slave cylinders are in abundance and I have a bit of a collection of them, all still wrapped in their original waxed paper.
I love working on the Singer as the mechanics are generally a joy to work with. The original workshop manuals are excellently written and composed, too.
The later Singers (and Rootes Group cars in general) moved to self-adjusters, but as others have pointed out they still need manually adjusting. NOS Lockheed slave cylinders are in abundance and I have a bit of a collection of them, all still wrapped in their original waxed paper.
I love working on the Singer as the mechanics are generally a joy to work with. The original workshop manuals are excellently written and composed, too.