My 1987 300D
My 1987 300D
So timing is good. Verified by adjusting timing with car running. Found that with #1 and #3 lines that my smoke issues are almost nil. Now, I did have these injectors serviced about a year ago, so I assume they are OK. I have swapped #1 and #4 to see if it follows. IIRC, I have already been through this dance with #1.... Time to start looking for a new engine I think.