[woofa.express]

Well I fixed the problem. Bought new radiators for each car. One pressurised and one normal. The temp cannot be read on the pressurised ( I don't have a dedicated gauge) but on the normal one with the thermometer on the radiator cap the red dye only just showed when on an extensive climb. I'm pleased I went that way.
Both cars were fitted with new head gaskets and had any rust scrapped from the head and block. Fitted the return flow with socks and they each caught a good table spoon of rust flake. That was better than returning it to new radiators. I should have done purchased new radiators much earlier. gary