Tight exhaust valves and blown vac pump diaphram. This will make heavy blue smoke, horrible oil consumption, and funny running -- makes a droning noise when it isn't running rough.

How long has the it had this problem? If it has been on the order of weeks, not problem, but long term (months and many miles), it may have also burned the pre-chambers.

Fix the diaphram, run some RedLine or Diesel Purge through it, and see what happens. Probably will fix it right up.

If not, can I buy it? The engine in the 220D I have is shot.

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!