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I am sorry to disagree, but the BBB will not give easy to find, good directions for M130-983 engine repairs. I have both the early and the late version BBB and I find them quite useless. Depending on what your intended repair is, you are probably better off with a "Haynes" manual.
scoot: For you, with a 250SL, it may be, but the original question was for use regarding engine work on a 280SL, and for that, the BBB is not good enough. Period. I am working on my 71 280SL engine, I have the head off and the BBB is completely useless.
scoot: The question in the first post was very clear and specific. That's why I answered it the way I did. When someone is looking for how to adjust the linkage, I may point him to the BBB....