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Originally Posted by 1985 300SD Sady
Ahem, thats 22.5 to 1 thank you very much  |
You're both wrong.
Its 21.5 : 1. I have the owner's manual for an '85 300D right in front of me, now (from the first car I ever owned).
The 603 engine has an even 22 : 1.
BTW, it seems most common rail direct injection diesels have that piston crown shape.
Mercedes Sprinter engine (OM612 270 CDI)
Courtesy of Metric Motors (mercedesengines.net)