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Old 02-24-2000, 09:19 AM
Posts: n/a
The early 617.95 engine vacuum pumps with two diaphragms are driven differently than the later ones. You have to use the type that came on the car or change the injection pump timer to the later type....and that is a real pain. Early pumps were driven by a splined coupler, later ones are driven by an eccentric on the face of the pump timer sprocket.

Randy D.

ASE Master Tech
Mercedes Tech 19 Years
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