Fw: [Vwdiesel] idle switch, diesel leak, oily engine block

[James Hansen]

 Since you don't have a butterfly in the airflow to restrict airflow when
your foot comes off the throttle like a gas engine does, you will not
experience the same braking effect due to the vacuum.  That's one thing that
makes the diesel so efficient- the unrestricted airflow, and higher
resulting volumetric efficiency.
 -James

 ----- Original Message -----
> From: Scott Alexander <salex at dsl.cis.upenn.edu>
> To: Mark LaPlante <laplante at mac.com>
> Cc: vwdiesel list <vwdiesel at vwfans.com>
> Sent: Friday, January 02, 2004 4:21 PM
> Subject: Re: [Vwdiesel] idle switch, diesel leak, oily engine block
>
>
> > On Fri, 2004-01-02 at 17:13, Mark LaPlante wrote:
> > > I figured that much out.
> >
> > Sorry.  :)
> >
> > >  I was wondering which way the connector should
> > > be pointed. Or another point of reference is the part number stamped
on
> > > the part. The accelerator doohickie seems to contact the switch
> > > slightly differently depending on how the switch is put in. I seemed
to
> > > be getting some intermittent continuity to the switch with the
throttle
> > > at idle. The plunger seems to be separated from the baffled grommet
> > > part of the switch. Not sure if that is normal or not.
> >
> > I can't help on that bit.  A PO removed the upshift "relay".  Both of my
> > switches have exposed plungers since the rubber boot thing is about 50%
> > gone.  My conclusion was that I'd take the macho approach and figure I
> > didn't need a light to tell me when to shift (particularly after looking
> > at the prices of the bits to put it all back together :).
> >
> > > I have noticed the upshift light coming on when coasting around a
> > > downhill 270 degree offramp. I usually put it into third gear, which
> > > brings the rpm up, but I guess I don't really get the engine braking
of
> > > a gas engine in a diesel, right? Or does the compression help slow the
> > > car?
> >
> > I'll be interested to hear other answers on this since my car is a
> > recent acquisition and has spent more time getting stuff fixed than on
> > the road.  I did, however, do a quick experiment on a steep hill with
> > the clutch in and out and concluded that I didn't feel any engine
> > braking.  (Of course the speedo gear was missing from the trans when I
> > bought the car, so I was going buy seat of pants rather than a gauge.)
> >
> > Best,
> > Scott
> > >
> > > Mark
> > >
> > >
> > >
> > > On Friday, January 2, 2004, at 04:02 PM, Scott Alexander wrote:
> > >
> > > > Assuming that you are talking about the electrical switch which sits
> on
> > > > top of the fuel pump, it should be pointed so that the accelerator
> > > > doohickie pushes it when the accelerator is not being pressed.
> > --
> > Scott Alexander <salex at dsl.cis.upenn.edu>
> >
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