For some reason my searches are not locating any any threads on how to replace a vacuum pump on a MB diesel. Lots of them saying to do it though.

It doesn't look very hard but I was mostly wondering if you first need to rotate the crankshaft to a specific position to relieve compression on the vacuum pump spring to facilitate easier removal and installation.

Thanks.

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1993 W124 300D 2.5L Turbo, OM602.962
2000 Chevrolet Cavalier, 2.4L DOHC
2002 Ford Explorer, 4.0L SOHC
2005 Toyota Prius, 1.5L

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