DO NOT clean the head or block with abrasives with the pistons in the engine!!!!

Loose abrasive (even from Scotchbrite pads) ends up on the compression ring and will rapidly eat the cylinder walls.

Use solvent and a blunt scraper to clean the surfaces.

Please.

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!