My resurrection of my 1984 'barn find' original import Range Rover is progressing well. Driving around to test and fix little issues as they come up.
A not so little issue is that engine seems to lack cooling as it slowly but surely overheats. My Holley Sniper EFI system provides very accurate temperature measurement. I am watching it so never overheated as in boiled, but driving to work (abt 25 miles/30-45min) I notice the temperature is going from 180 to 190 to 200 to 219 at which point I switched off the AC and put on the heating to see it go down to 215. Outside it about 80-90F so this will need to be solved.
I have dual 90W electric fans switching on at 185 and 195 but the original radiator. I recently replaced the cooling water pump as the old one was leaking and the system is brimmed with premix green antifreeze no airlocks as far as I can tell. Driving freeway is actually resulting in higher temperatures (220) then standing in traffic (210), so the fans are working but the radiator just cannot shed the heat that the engine is putting out. The timing is set right and engine is running well.
The exact 1984 radiator is not available in the US, so I ordered a 3 row aluminum 1987-1995 replacement radiator which will require slight modifications to fit. Should take a few hours to fit.
I know these cars have an overheat issue. Is there something else I am missing? Enclosed picture of inside of the radiator (cold side), which does not seem to be blocked but obviously not quite in perfect state. I did rinse it out two weeks ago when I changed the pump and it looks a little better now.
Edit: and I checked and replaced the thermostat, currently a 87C unit. Fully open at about 95C (203F)
A not so little issue is that engine seems to lack cooling as it slowly but surely overheats. My Holley Sniper EFI system provides very accurate temperature measurement. I am watching it so never overheated as in boiled, but driving to work (abt 25 miles/30-45min) I notice the temperature is going from 180 to 190 to 200 to 219 at which point I switched off the AC and put on the heating to see it go down to 215. Outside it about 80-90F so this will need to be solved.
I have dual 90W electric fans switching on at 185 and 195 but the original radiator. I recently replaced the cooling water pump as the old one was leaking and the system is brimmed with premix green antifreeze no airlocks as far as I can tell. Driving freeway is actually resulting in higher temperatures (220) then standing in traffic (210), so the fans are working but the radiator just cannot shed the heat that the engine is putting out. The timing is set right and engine is running well.
The exact 1984 radiator is not available in the US, so I ordered a 3 row aluminum 1987-1995 replacement radiator which will require slight modifications to fit. Should take a few hours to fit.
I know these cars have an overheat issue. Is there something else I am missing? Enclosed picture of inside of the radiator (cold side), which does not seem to be blocked but obviously not quite in perfect state. I did rinse it out two weeks ago when I changed the pump and it looks a little better now.

Edit: and I checked and replaced the thermostat, currently a 87C unit. Fully open at about 95C (203F)