Bad injector, it sprays sideways. Get them checked, they will burn the prechamber out, too.

Make sure they are correct side up, too, they leak if upside down. Ditto if there is also an old fit in the hole type seal in there too!

Peter

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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!