One tooth early shouldn't be a problem. One tooth late and the valves hit the pistons. Gently, I suppose, as these things go, but contact.

Funny how much better a diesel runs with proper timing....

Peter

__________________
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!