Service limit is 300 psi, new condition is about 425, I think (last number may be off).

The compression in that engine is fine. I believe the compression ratio is something like 20.5 to 1, but I don't remember exactly.

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!