by rover » Thu Oct 19, 2006 9:04 am
I doubt you have damaged the engine Andy, they are very hardy, the rattling is most likely down to timing chain and or little ends because of the heat, if you werent chucking water out then it should be fine. It sounds like the rad is blocked or the water pump is getting weak, id go for the rad first, it was second hand after all, best way to check those rads is to take bothe top and bottom hose off and put a hose pipe in the top inlet, they run so free (when not blocked) that you should be able to turn the hose on full and the water will come shooting out the bottom, if it backs up and pushes it back out the top then the rad is blocked, more likely than not with limescale. If its just the rad then you want a Granada one as thats what it came from, then give it an oil and filter change, the oil in at the mo is Granville 10/40 semi synthetic.
Rover.