I think you have cured the problem. Tight valves cold usually means they stay open hot, and the resulting low compression causes all sorts of trouble.

It will take a couple hours running to get all the crud out of the cylinders from the low compression soot accumulation. Ditto for getting the valves re-seated properly.

You also have some carbon on the injectors from poor combustion -- this will clear up when you get some time on the engine with good compression.

You can speed all this up by running a full bottle of RedLine in a tank of fuel.

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!