[Jembow]

I have a repro radiator. It will empty itself to well below the top of the tubes, even though it runs very cold. I can't see the overflow in the top tank, I think it is too low so that the turbulent water from the waterpump gets into it. On my 4 banger Fords the overflow sits just under the rad cap. My solution has been to put a rubber tube on the output with a restrictor for the moment, long term I want one of Skip's low pressure valves. Then I'll fit thermostats.