[Vwdiesel] Need Some Clarification !

[Shawn Wright]

Wouldn't be easier for VW to just give us the PD models aready out in Europe, which
already have much higher pressures? ;-)

On 22 May 2003 at 5:36, Nate Wall wrote:

> That would make sense from what Chris reports on the
> injector size. Since the Auto Tranny TDI models have a
> larger bore pump and SMALL diameter injector holes,
> then you'd get about the same fueling, but it would be
> higher pressure and a finer spray in the automatic
> models. Hense slightly reduced emissions
> (particulates, mainly)
>
> --Nate
> --- TexasTDI <texasvwdriver at hotmail.com> wrote:
> > Interesting.
> >
> > Learn something new everyday.  }:o)
> >
> > Chris Thornton
> > 1991 VW Jetta 2 Door 1.6 Diesel - 237k miles
> > 2000 VW Golf 1.9 TDI (turbo diesel) - 82k miles
> > Amsoil Synthetic Lubricants Dealer #1098500
> > http://texastdi.com/6/ubb.x
> > http://www.amsoil.com
> >
> > ----- Original Message -----
> > From: "Nate Wall" <natewall1 at yahoo.com>
> > To: "TexasTDI" <TexasVWdriver at hotmail.com>; "Shawn
> > Wright"
> > <swright at zuiko.sls.bc.ca>
> > Cc: <vwdiesel at vwfans.com>
> > Sent: Wednesday, May 21, 2003 9:22 AM
> > Subject: Re: [Vwdiesel] Need Some Clarification !
> >
> >
> > > The larger bore pump in the automatics is soley
> > for to
> > > meet emissions standards. In order to do this, the
> > > injection pressures have to be higher on the
> > automatic
> > > tranny TDIs, hence the larger bore pump
> > >
> > > --Nate
> > >
> > > --- TexasTDI <TexasVWdriver at hotmail.com> wrote:
> > > > That's the way VW made them.  The 5 speed gets a
> > > > 10mm pump and .184mm
> > > > injectors.  The automatic gets an 11mm pump and
> > > > .158mm injectors.
> > > >
> > > > The automatic TDI gets less fuel mileage because
> > of
> > > > the transmission.
> > > > Automatic cars always get less mileage than 5
> > > > speeds.
> > > >
> > > > Chris Thornton
> > > > 1991 VW Jetta 2 Door 1.6 Diesel - 237k miles
> > > > 2000 VW Golf 1.9TDI (turbo diesel) - 82k miles
> > > > Amsoil Synthetic Lubricants Dealer #1098500
> > > > http://www.amsoil.com
> > > > http://texastdi.com/6/ubb.x
> > > >
> > > > ----- Original Message -----
> > > > From: "Shawn Wright" <swright at zuiko.sls.bc.ca>
> > > > To: <vwdiesel at vwfans.com>
> > > > Sent: Tuesday, May 20, 2003 6:54 PM
> > > > Subject: Re: [Vwdiesel] Need Some Clarification
> > !
> > > >
> > > >
> > > > > Larger fuel pump? Why is this? My Dad's
> > noticed
> > > > his '02 auto gets worse
> > > > > mileage (about 45-48mpg imp)  than his '01 5sp
> > > > (50-55mpg imp) (both
> > > > > Jettas), but I'd have thought this wouldn't
> > matter
> > > > to the fuel pump...
> > > > >
> > > > > On 20 May 2003 at 18:46, TexasTDI wrote:
> > > > >
> > > > > > Yes, if her's is an automatic.  5 speed is
> > to be
> > > > changed at 60k.  The
> > > > reason for
> > > > > > this is the timing belt runs the fuel pump.
> > And
> > > > the automatic TDI has a
> > > > larger
> > > > > > fuel pump than a 5 speed (11mm vs. 10mm).
> > > > > >
> > > > > > Chris Thornton
>
>
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--
Shawn Wright
http://Zuiko.sls.bc.ca/swright
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