First, I want to thank everyone for their ideas on this problem. Due to an unexpected problem, I haven't been able to do anything on this until now. I'm about to start, but I have a question on the idea of doing a compression test on this 5 cylinder engine.

I don't have a lot of experience working on diesel engines, but it would seem to me that to do a compression test, one would have remove an injector and use a compression test gauge in the injector bore. However, from the discussion, I got the sense that perhaps there is another way. Could anyone clear this up?

It seems to me that if you did that you would also know immediately whether or not fuel was getting to the injectors. Am I right? Would appreciate anyone's comments.