MB never sold a diesel with a vacuum gauge..gas models, yes. On 7/28/05, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > > Now here's where I need a physics lesson. If indeed your engine has zero > vacuum, how does the cylinder fill with air and fuel? Let's use real > numbers, a 617.95 engine has bor/stroke of 90.9/92.4 and fills through a > relatively small intake runner. This doesn't create a vacuum when the piston > goes down to draw air in? There is no vacuum there? Without a turbo how > would you get enough velocity to fill the cylinder? > > If I remember right there was a guage in the lower part of the left most > guage in the cluster of my 300SD that acted a lot like a vacuum guage. What > is it measuring if not vacuum? > > Please set me straight on how the lambda system works if there is no vacuum > in your engine. I thought that the drop in vacuum during acceleration on the > upper chamber caused an imbalance and allowed the spring force to close the > contacts which enriched the mixture. If there was no vacuum how does it > work? > > Ken, in wondering mode. > > In a message dated 7/28/2005 12:46:13 PM Pacific Daylight Time, > [EMAIL PROTECTED] writes: > From: Fmiser <[EMAIL PROTECTED]> > Subject: Re: [MBZ] diagnosing bad valve stem seals/guide > To: Mercedes mailing list <[EMAIL PROTECTED]> > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; charset=US-ASCII > > rumor has it that [EMAIL PROTECTED] wrote: > > > Don M., > > > > I question whether this method will work in a diesel: > > It won't. > > > "To check your > > valve guides and/or seals find a very long hill and drive/coast down > > under compression, creating a large vacuum draw, > > _This_ is the problem with this test. A diesel doesn't create a large > vacuum. One of my W123s does have a butterfly valve in the intake, so it > creates a _small_ vacuum. All the rest will create a vacuum only when > the air filter is _way_ overdue to be replaced. *grin* > > Philip and his fleet of vacuum-free engines > > _______________________________________ > For used parts email [EMAIL PROTECTED] > For new parts see www.buymbparts.com > For repairs see www.oldworldauto.com > > To Unsubscribe or change delivery options go to: > http://striplin.net/mailman/listinfo/mercedes_striplin.net > > >
-- John Freer Palm Springs, CA 1992 500 SEL 1985 380SL
