Date: Tue, 22 Oct 2002 09:49:36 -0400 From: KeithG <noonenopsamspring.com> Subject: Re: PCV Valve on a 89 900 T16
Paul, Saabs do not use PCV 'valves', but crankcase vent elbows. The old spring loaded PCV valve was not used on a saab 900. On a turbo, the small vacuum line needs a checkvalve (any will do as long as it can handle about 1 bar or so) to keep from pressurizing the crankcase. That is all there is to it. The large pipe goes to a port in FRONT of the throttle plate and the small vacuum line goes to the intake manifold. Any 'performance PCV valve' ia a ruse. The 8VT may be a little different, and it may have changed for EU spec cars to be identical to the 16V as I do not see why the same parts would not work. The '84 8VTthat I worked on a couple of years ago was a littel different, but I do not remember exactly what it was... KeithG Paul Halliday wrote: > in article T8Gs9.6351$46.3061nopsam, G Noble at liladigsnopsamr.net wrote on > 20/10/2002 23:41: > > >>Hi, >>The diagram in the drivers fender shows a PCV valve. There dosn't seem to be >>one on the car. Does anyone know if this engine is sposed to have one? >>Location, USA. > > > Greg, dunno ... but I'm interested in this. > > Trent Saab (http://www.trentsaab.co.uk) make an aftermarket *replacement* > for "all turbos, including 9-3 & 9-5", so I think this is a fair indication > that there should be one to actually replace. I've not noticed one in the > two C900 turbos that I have owned, but then I'm not sure I know what to look > for. > > If you find it doesn't have one, it might well be worth fitting one. I know > I get more than a bit worried about gaskets blowing out on my Aero when the > oil pressure gauge is showing 70+ PSI. My Aero is being rebuilt at the > moment, but I intend to have a Trent Saab PCV, along with a fuel-pressure > regulator and a dump/blow-off valve, fitted once the bulk of the work has > been done. > > Anyone else know anything about this issue? > > Paul > > 1985 900i 16V > 1989 900 Turbo S > http://pjgh.go.dyndns.org/saab/index.html > >
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