I recently posted a THREAD here about my Radiator - which no one has replied to......
Anyway - I bought a new radiator because my system was overheating.
It was 27 years old......
Once the old radiator was out, I BACK FLUSHED my engine with my Garden Hose and discovered a LOT of "Stuff" was in the cooling system !
Here is what came out after back flushing five times with the Heater Lever in the ON POSITION !
BACK FLUSH = Running the water backward thru the Thermostat Port WITH THE THERMOSTAT
OUT !
This loose trash (some of it 1/4 inch long!) would block up the new radiator tubes withing a few minutes of starting up the engine ! It also blocks the Heater tubes and cuts down on your car's heater output....
My advice (for what it is worth) is - back flush your cooling system every couple of years to get chunks of rubber (peels off old hoses ?) OUT of there !
DoctorBill