Water pump bad = impending doom ?
 

All,

I looked at a 04 Disco today that was in pretty decent shape and the price is good. On the down side there is not much history with it other than the present owners had the water pump replaced due to it overheating about two months ago. It ran fine, sounded as healthy as any engine I have ever listened too and the temp gauge sat dead center on the gauge idling and being driven for about 45 min. On both hwy and stop and go. My question is this. If a Disco gets hot is the resulting damage usually seen immediately or can it fly apart later. I'm guessing the answer is both. Can one get hot and NOT sustain serious damage? Unfortunately this is one of those situations where the true history is not readily available, but the price is good to offset the risk......maybe. Any thoughts on this appreciated.

Just because it got hot does NOT mean it is toast.
You can run it to the red, cool it off and all will be well.
Continue to run it in the red and you can kill it.
Yes the problems would come up right away.
Everyone is so scared of these engines it makes me sick.
I am less worried about service records and more worried about the "right now".

Thanks Spike. I agree in most cases the present can tell a good story, always good to have history but not always available. I had a very competent mechanic tell me if you start a car, let it warm up, idle for 15 min. And then test drive it for 1/2 hour if nothing flares up its probably OK. I know it's not absolute but it does make sense. History checks out ok, no wrecks, three owners. 104k.

When ever I test drive a car I always drive it for a hour, including the expressway at high speed, I agree with your mechanic, most issues should come up in that time.

Bring along a Scan tool and see what the real coolant temps on the hwy and around town are.

Agree with above. If you or mechanic can attach a scanner and look at temperature in digital fashion that would be good. The factory heat gauge is not like Dad's Buick. It is designed to stay at 50% until really hot, then rise up sharply. Running extended hours at "extra crispy" temperature makes bad things happen.