Hey folks got my Orings for my injectors and I called a guy that works on Diesel engines and he said that to remove the injectors you have to have a special tool. He told me he would do the job:cheer: for $450.00 for replacing all the orings of 8 injectors. I have done some work myself on this diesel and can rebuild gas burner with my eyes closed. I was wanting to know if you got to have a special tool and also I have read up a little on this about removing the oil and the fuel from the HPOP and suck the oil off top of the pistons. So what is the hard part and what kind of special tool is required for this job. Thanks