[V8] Kalunkakalunka booo

[Kneale Brownson]

Lower hose slipped off the radiator nipple on V8#2 today.  Got a low
coolant warning at the stoplight 1000 feet from my driveway, but the
temperature gauge only went a little above the middle mark before I got
parked.  Saw an empty reservoir, so I poured in most of a gallon of coolant
before I realized it was coming out of the hose.

After cooldown, I reattached the hose and snugged the clamp up really
securely.  I think what happened is when I put the hose back on after
finishing the timing belt marathon this spring is I tightened it down on
the lip on the nipple rather than on the neck behind the lip.  Anyway, it's
on  solidly now.

However, after refilling, I started the car and kept adding until I had a
steady stream through the return line to the reservoir, and then I let it
run for a while with the cap on so it could pressurize the system.   When
it was fully warmed and fully pressurized,  I hear a funny mechanical sound
I've not heard before, and it seems to be coming from the water pump.  I
put the long extension I'd used for tightening the clamp on the pump and
against my head next to my ear, and it was pretty loud.  Don't think it's
the A/C or steering pumps.  

Since the coolant serves as the lube for the water pump, I'm  guessing I
toasted the pump.  Do I have to worry enough about it failing  to do the
timing belt job over again?  We're probably not going to use this car for
any long trips.  What happens if the water pump fails?  I know on the I5s,
the pump can take out the belt.  The pump drive on the V8 uses the back of
the belt, so it doesn't engage the teeth, but it does provide some tension.
 Would the bearing leak before the shaft came loose and let the belt flop?