Easy, not really. You must first = remove the engine pulley, this is a high torque nut. I had to make a tool = like that shown in the Bently manual. To get access to the pulley, you will = need to remove the muffler and splash guard sheetmetal. Once the pulley is = off, removing the pump is easy. When installing a pump, you should = replace the sealing nuts with new ones. I would doubt if the old ones would = seal a second time.