How do you replace 1991 Ford Escort lx water pump?

The water pump is driven by the timing belt under the timing cover. It would be no more labor to replace the timing belt at the same time.They will only last about 90k and you could do both at the same time.To replace the water pump you have to take the timing belt off and drain the cooling system.Then, the new water pump is bolted on and the standard procedure is to replace the timing belt at that time.