Seems to me the cam bearing nuts need to be slacked off gradually since there is a risk of snapping the cam if you loosen some more than others. There is a tightening series in the manual, I don't remember off-hand how it goes. Let me check my manual.

Jeremy

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"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970