This seems to indicate the small port is plugged. There is supposed to be an inline filter fitting where the hose from the small port to the "+" connector to intercept the dust/particle in the line. Without it the small port will be clogged up over the time. The small plastic inline filter (has mesh in it) is a MB item. I had ordered two from Rusty years ago but can't seem to find them at this time. Check to see if the filter is still there or clogged up. Now another possibility is to remove the small port from the vacuum pump and clean it but I have no idea if it is doable...
Tan --- Brian Smyla <[EMAIL PROTECTED]> wrote: > The vacuum pump on the engine in my '86 300SDL has > two ports; one is for the > brake booster, the other is a smaller port that > appears to handle the > emission control system. Does the pump supply > vacuum to both of these > ports? I have vacuum on the brake booster port, but > not on the smaller > port. Is this a normal condition? > > > > Thanks in advance. > > > > Brian Smyla > > > > _______________________________________ > For new parts see official list sponsor: > http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://striplin.net/mailman/listinfo/mercedes_striplin.net >
