Posted by Hank on Monday, June 11, 2007 at 04:01:53 :
In Reply to: 12 volt dc vacuum pump source posted by jim in n.y. on Sunday, June 10, 2007 at 19:59:39 :
... in the 1980s and early 90's in order to power the vacuum locking systems that Mercedes was so hung up on. I had a W126, and the 12v pump was in the trunk. But I doubt that they would support a brake system without a hefty reservoir. The W123 Mercedes did have vacuum "cells" (read tanks) in the trunk, which were designed to allow the locks to cycle as few times with the engine off. I suppose that an electric vacuum pump could maintain such a thing, but it sounds like a dicey approach for brakes.
The diesel Mercedes I used to own all had mechanical vacuum pumps, as does my Ford 7.3. Does the engine you have not have this feature?
H
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