re: 4 row radiators

[Tom Jennings <tomj@xxxxxxx>]

It's pretty easy to get a quick look at you cooling system with a
decent thermometer.

If the system is full and the pump working, you can simply measure
the temperature drop from top hose to bottom hose.

I got 20 - 40 degrees difference (I forgot,and never wrote it all
down) in the hornet or rambler both are two rows, mechanical fans,
inline sixes.

If juice is flowing properly (pump good, hoses don't collapse,
belt not slipping, block not totally plugged) and the radiator is
doing it's job (tubes not clogged, air flowing) the engine will
cool.

If it doesn't one of the above is wrong, or ignition timing is way
retarded.

Even a badly undersized radiator will cool most engines most of
the time (flat and level 35mph+ cruising), it's the rest of the
time that yu tune for!