I would. I would also adjust the ALDA for more fuel if you never get any smoke -- richen up til you just see some smoke over the deck lid at full throttle, third gear, 45 mph, no more.

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!