How hard is it to replace the water pump without removing the cams gears? I don't want to remove mine again. If you could guess, I am about to change my timing belt, tensioner, idler pulley and water pump. It is time. When I swapped my cams out I just took a crow bar and pryed the belt off then did the opposite when putting it back on. I used a rubber strap to hold the cam gears in place from the spring tension.