my 225,000km old RB20det overheated today.
Limped it home and waited for it to cool down.
Topped it up with 4L of coolant and noted that its making some more noise than usual.
Is it the water pump that is on the back of the clutch fan, and has the bottom radiator hose going into it?
It seems to be coming from there, and I noted that the aforementioned hose is empty (normally i'd expect it to be full of coolant and hence firm).
thoughts?