Tunnie's bodge reminds me of a bus that I was on in the Philippines once.

I was sat up front next to the driver and noticed that every now and again he'd open a little brass tap on a length of hosepipe that came in through the window and disappeared into the engine bulge between us.

When we had a pee stop and I came out of the 'services', the driver was on the roof filling a big steel tank with water from a hose. When I looked underneath there was water pissing out from the engine bay.

So when the engine temperature got a bit too hot, he was topping up the radiator from the tank up top!
