I tried to start it after I got it back home but it would not start. However the weather was pretty cold then and I have not tried since. When it was running it would sometimes idle rough and then at other times smooth.

I am still on the steep end of the learning curve with these engines but from what I have read on this board and other places it does sound like a combined fuel and valve problem. With three cylinders @ 350 psi or greater and four over 325 psi it should at least start.

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Sedecrem

82 300SD 290k(needs engine swap)
79 240D 354k with new heart transplant w/220k
82 240D w/auto tranny soon to be manual 4 speed