you can take an old pair of women's nylons, cut one leg off and put that down the inlet side of the radiator.
obviously, the open end of the nylon leg gets folded back over the rad inlet nipple and is held in place by the rad hose / clamp when you tighten that down.
this functions as a radiator fluid filter so that all those flakes of rust and grit that are so common in old engines don't clog the vanes of the radiator itself.
The way to crush the bourgeoisie is to grind them between the millstones of taxation and inflation.
Government schooling is about "the perfect organization of the hive."
H.H. Goddard, Human Efficiency (1920)