vacuum

if an engine is super/turbocharged - where does the vacuum for the brakes etc come from? the same as diesels? as in a pump on an alternator? im thinking of supercharging the 6.9 (with 5psi or so) - but as the plenum chamber would be above atmospheriuc pressure, things like the vac control...

A strange request here but I have to ask. I'm trying to track down an alternative supply of one way vacuum valves (also called a "check valve") for a particular automotive application. I'm guessing that MBs must have quite a few of them scattered around the car due to the vacuum operated central...

as the s class (W140) pump often dies - and its the motor dying - i cant believe that the motor isn't replaceable by itself. so - if anyone has a dead one they dont want - can they bung it my way so I can see if its possible to make an adaptor for a standard motor - and keep the price for a...