Since the engine/IP timing is still retarded would it be possible fix it by turning the engine until the IP lock tool engages (the one that goes in the side port).

Then carefully unbolt the clutter and the IP, then slide it out until the gear/spline just barely disengages.

Then turn the engine or IP body very slightly (the correct direction, whatever that is) and re-engage the gear/spline to the IP exactly one tooth advanced from the present position.

Thus removing the retarded timing.

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1st MBz: 1982 300SD
2nd MBz: 1987 300SDL
3rd MBz: 1995 S420
4th MBz: 1987 190DT
5th MBz: 1984 300SD w/1983 300DT engine
6th MBz: 1999 C230k I'm 3rd owner, got it w/57,235 miles.
and manages Mom's 2007 R320 CDI