What do you do to pulleys after engine detailing?
Do you spray special lubricant to axles of the pulleys?

Are they designed not to be affected by spraying degreaser?

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1992 300D 2.5 turbo diesel. 319 k miles.
124.128 chassis, 602.962 engine, 722.418 tranny.

Presumably they are sealed bearings and need no lubrication?

Even if you put some on, I am not so sure it would make it in where it actually mattered.