I am going to replace the timing belt , tesioner and idler bearing on my 2000 daewoo leganza. I noticed some of the kits have water pumps too. It is likely to break like the timing belt?
I would suggest to replace the car itself.
if your going that far to replace the timing belt, sure why not?
Well the logic is that since you only need to replace the timing belt every 60,000 miles, then you might as well change the water pump, should it fail in between you would end up having to do nearly the same job all over again. always change the water pump if it is driven by the timing belt. That is purely a rule of the trade.