It’s been too long since I started posting. Work and repairs got in the way. Yes I am now running a waterless p38 range rover. Did it work, the jury is still out on that. And after testing the kit says I still have too much water in the system.must have been sat at the water pump please. But I pumped all but a litre of the expected volume of coolant out.
I think I have a small cracking in the head so the system still pressurised. Is it as catastrophic as before, no its great. It has overheated twice since the change. And both times it quickly recovered, in fact the second time it only barely brushed the red.
I should have changed the water pump. It’s bugging me now. It could well be nothing more than a lazy pump causing local overheating under load.