14-05-2022, 10:51 PM
My car has always had a tiny hole in the radiator cap so that any steam could be observed (Had the curious effect that on the rare occassion of heavy braking a fine jet of rusty water shot over the roof! And a large quantity out the overflow. can be captured)
Becaue there is no reserve water and not above the head, and the head is alloy with ohc most modern engines are wrecked by a boil up. But provided enough water remains to ensure circulation, or at least over the head, older engines are little affected. So with reasonable care can can experiment with part blanked ardiator, no fan etc. Temp gauges in top tank can be deceptive as with no water may give an OK reading.
Becaue there is no reserve water and not above the head, and the head is alloy with ohc most modern engines are wrecked by a boil up. But provided enough water remains to ensure circulation, or at least over the head, older engines are little affected. So with reasonable care can can experiment with part blanked ardiator, no fan etc. Temp gauges in top tank can be deceptive as with no water may give an OK reading.