My 1972 Duster is running VERY HOT!!
Thanks. I had the pump replaced last year due to a leak. The fan rotates freely by hand and has no wobble. I'll try replacing the lower hose as it does look bad but it has a spring in it. The radiator has not been flushed in 5 or 6 years at least. Well I got work to do but not today, it's Easter Sunday.
On a thermostatic clutch That's a bad sign.
On a viscous clutch it could go either way, which is why I never run one anymore.
Did you test it with an IR gun, or a meat thermometer?
Working in your driveway, with the cap off,you can get her hot, then cool it by watering the outside of the rad. The temp should begin dropping almost instantly.
If you see bubbles in the water, or foam, or smell exhaust, well you know what that is!
Sometimes , when you blip the throttle, you can hear it bubbling in the heater core. Reverse the hose connections and try again.
At idle in your driveway, with the engine hot, the fan should be noisy and moving huge amounts of air. If you have A/C, the condenser is, or can be, a huge PITA. They get clogged with dirt and debris and insect nests/eggs.