[Vwdiesel] pump numbers

[Scott Kair]

    IIRC, the valve runs about $6-8.  It was a dealer-only item when I
bought it, but I'd check with Halsey before bending over and spreading
my cheeks again.  It pays to buy two.
    The other device you describe sounds like it might be an
aftermarket inline fuel heater.  Stanadyne and MB both make them,
although I can't remember which is powered electrically and which has
coolant plumbed through it.
    On the bright side, a complete failure is easier to detect than a
hairline crack.  If you replace with the newer unit, be sure to orient
the whole unit and connect the lines correctly.
    Good luck,
    Scott

----- Original Message -----
From: "Bart Wineland" <bwinelan at allegheny.edu>
To: "Scott Kair" <scott3491 at insightbb.com>; <vwdiesel at audifans.com>
Sent: Friday, December 10, 2004 9:49 PM
Subject: Re: [Vwdiesel] pump numbers


> Thanks Scott. It is the plastic housing you describe that holds the
little
> wafer that came apart and will not seal again.   When I parked the
car in
> the garage tonight and shut the engine off I could hear it hissing.
It
> leaks fuel out pretty good when the engine is running and lets air
in when
> I shut it off. It makes starting the car a real chore. I probably
whacked
> it at some point when swapping the engines.  In addition to what you
> describe mine has another device that attaches to the filter
bracket. I
> think it is a heater since it has power running to it but is not
plumbed
> together in anyway to the filter since I've owned the car.
>
> Bart
>
> At 06:32 PM 12/10/2004 -0600, you wrote:
>
>
>
> >  >I have a old style fuel filter housing
> > > I want to install instead of the newer style. The newer style
has an
> >extra
> > > line that I don't know what to do with but will figure it out.
> > >
> > > Bart<<
> >
> >     The newer style incorporates a thermostatic wafer in a plastic
> >housing that runs return fuel from the pump back through the filter
at
> >temps below 50F.  IIRC, two of the fuel lines are coupled to the
> >housing, which sits atop the filter.  Over time, the plastic gets
> >brittle and cracks or breaks when you try to tighten the line
clamp.
> >     The new style doesn't become apparent until the thermovalve
> >housing cracks and leaks, or when you find out the filter is more
> >expensive and the housing a dealer-only item, or when the
temperature
> >gets below about 10F.
> >     At cold outside temps, you get warm fuel to the pump pretty
> >quickly, rather than the cold stumbles for several minutes.
Replacing
> >the newer style with the old involves a bit of re-plumbing the
extra
> >lines, and does save money and increased risk of leaks, but a
couple
> >of mornings at -10F made me a believer in the newer style.
> >     HTH,
> >     Scott Kair
> >
> >
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>