Youre nozzles are probably fine. Especially if you have good numbers on emissions test. Bad nozzles should have showed up on the particulate matter portion if anywhere. Remember, however , that they are a wear item and will not last forever and waiting till one fails is the wrong thing to do. You can easily loose a cylinder.
You shouldn't hurt the nozzles. Sometimes the lines will rust up some and the nut will hang up. It wouldn't hurt to spray them with a penetrating oil if they are rusty before you remove them.
Last edited by catfish101; 01-10-2007 at 12:49 AM.