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Old 01-19-2020, 01:17 PM   #12
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Join Date: May 2010
Location: Oshkosh, Wi
Posts: 3,603
Default Re: Distributor vacuum brake question

Manifold vacuum pulls the plunger away from the plate. So during normal everyday driving the plunger does not contact the plate, so I don't see how it can stabilize the timing. If you've got wobble, the distributor needs to be serviced.
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