I think I have typed of this previously, many decades back while driving my battered old 60`s Lotus Elan, I saw the temp gauge rising to the extent I stopped to investigate, the cause was found to be a hole in one of the obviously corroded core plugs, the front of the plug looked OK in finest Ford blue, but once I pulled it out the rear of the plug was very badly corroded to eventually cause a water leak.. I found that a two pence coin could be encouraged to fit if it was slightly domed, and once in position with the dome facing outward, tapping the dome then tightened the fit....
Think I also typed of pouring boiling water into the fuel tank in freezing weather to resolve a fuelling issue on my then girlfriends car....Though I do begin to wonder if we might still be breeding young who may be able to think out of the box...? I sure hope so..
