PeachParts Mercedes-Benz Forum - View Single Post - anyways to avoid catastrophic vacuum pump failure w/o buying an updated vac pump?

lrg · #6 06-06-2005, 01:49 AM

I think that's the right idea. If you inspect the pump bearings and they are still tight with no real signs of wear you should be OK for a while longer. The rotating cam that actuates the pump lever makes it virtually impossible to make a catch screen. It's not that ALL of these pumps fail, it's just that a fair number of them do and when it happens it makes a mess of your engine. For most of us replacement is easier than regular inspection but IMHO if you have the time and a few extra gaskets doing periodic inspections could allow a lot more safe time on your original pump.