Raining W126 300SDs in PNW: Guess What is Weird on This Turbo Diesel Engine?

And no, it's not me! Haha

The engine is the silver 300SD that I got running with the remote fuel tank and some "weirdness" to it. I have noticed there are four things on this engine that are not typical in most W126 5 cylinder turbo diesels 1981 to 1985. Can you spot what they are? Part 2 to follow in one week.

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