You are confusing diesels with gas engines. The economy(vac) guage you
are talking about is only on gas models. Diesels do not have a lamba
system, that too would be gas engines.
[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
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