Quote:
Originally Posted by kerry
My point was that the engine vacuum vents into the crankcase hence pressurizing it. If there is a way to stop the existing vacuum pump from venting into the crankcase, you could avoid a second vacuum pump. I would think venting the crankcase to atmosphere would be entirely adequate since pressure could never build up.
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On the Piston Type Vacuum Pumps there is no way to vent outward because of where the Valve for that is located by the Vacuum Pump Arm.
The Blow-by is vented to the Atmosphere but it goes through the Hole in the Valve Cover.
Someone could come up with a vent the fits and replaces the Oil Fill Cap. But, the same ID Tubing/Hose needs from there to somewhere.
If it goes to the Air Filter Housing it is going to take some mods.
If it goes to the Ground you should have some sort of Filter on the end of it.
Concerning decreasing Oil leaks having a Vacuum in the Crankcase should be more beneficial than having no Crankcase pressure.