Bongo Fury

An engine will always increase in temperature when it is stopped.
All the heat is dissipated whilst moving but when you stop you have a chunk of metal that has to get rid of the heat, usually through the surrounding air and mostly through the coolant and radiator so you will get a temporary increase in temperature until it all cools down. So if your header cap is missing you could get an actual boil up (a pressurised system will boil at a higher temperature) and you will also get an increase in the coolant expansion and the header tank overflowing.
So always wear your cap.

I wonder if there is something about the bongo that makes you forget to replace it?

I've never, ever, made such a careless blunder in the past... I very nearly did it again a few months later

Yip, unfortunately, the water erupting up from the header does, on the surface sound like a cylinder head problem...

Hope it's sorted for you soon

Or it could even be as I described above and the engine boiled over after it was stopped.

Or you could just replace the head just in case??????
MEN......

Morning (still Bongo less)

The cap was defo on and tightly fitted the collant was coming out of the overflow (small black pipe)

It was not bubbling just pouring out...

I forgot to mention that when we set of the Diesel level was quite low...(our intention was to stop to refill)
Could this have had anything to do with the car stopping ie could the sediment have run round the pipes......??

It is no in the capable hands or our local garage.....

I await to hear the outcome....

Hils

If the cap was definitely on the header tank and coolant was overflowing from the overflow pipe then Big Daddy has a valid point.
Being low on fuel could have sucked some sediment up the pipe but I cannot see it causing it to overheat, more likely a leaking coolant pipe somewhere.
Let us know what the gararage say.

It certainly sounds like a head gasket. No big deal in the scheme of things. A quick sniff test (and or pressure test) will reveal all.