I have to agree about Phil and Roy. The prices seem to be in line with other sources and their expertise on these old diesels can not be matched. If you are like me and don't know the exact name of the part, Phil and Roy will know exactly which "thingie" you are talking about when you try to describe it to them. And they will also tell you which parts go along with the job you are about to do...a good way to avoid that 5 day shipping wait when in the middle of a repair job.

As far as bleeding the lines when you remove the nut...you don't have to do anything. The 603 is self bleeding, just torque them and crank the engine. It may take a little longer than usual but it will work. I would try to loosen that injector hard line and re-torque it. It just may fix that leak.

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1987 300TDT ~264,000 miles