I appreciate the advice on the nuts & checking it cold & cam lobe position. I made sure I did everything exactly as the MB factory shop manual instructed before writing this post. After reading other posts in this, I'm beginning to think it could be one of the injectors.
Would a noisy injector sound like a valve needing adjustment?

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DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012