[Vwdiesel] Simple little TDI question

[Bob O Shaughnessy]

On 5/7/02 7:02 PM, "LBaird119 at aol.com" <LBaird119 at aol.com> wrote:

> Dad's been checking a few little things on the Passat and came
> across two things.  First, the air filter had gotten wet at some
> time and had been sucked partly inside out.  It was sucked up
> against the outlet from the air box and was restricting air flow.
> The next thing he found was a lot of air in the fuel line.  He put
> on a new fuel filter only to have even more air!
> I checked a few things this morning and it seems that it's just
> plain slow to bleed all the air out what with the recirculating arrangement
> they use.  Does anybody know just why they do that?  I thought I'd
> figured things out when I found that most of the return was going to
> the filter instead of the tank.  If you turn that little plastic thing around
> then most of it goes to the tank.  Thing is the check engine light now
> comes on.  I'm wondering if it's causal or coincidence?
> Could someone take a look at that little plastic thingy that fits into
> the fuel filter?  There's a little dot toward one inlet/outlet.  I'm
> wondering
> which end gets the dot, the tank end or the pump end?
> It just doesn't make sense for the fuel to return heavily to the pump.
> There's no place for the air to go quickly!
> Thanks,
>    Loren

    Loren, the fuel returns to the filter to heat the filter.  The theory is
that any restrictive gelling that would take place would do so in the
filter.

    On my engine, two dots goes towards the pump, one towards the tank.


_________________________________________________________

Bob O'Shaughnessy,         Columbus, OH
vanagon at columbus.rr.com
99 A3 Jetta TDI
85GL with basic Westy interior
82 Westy Diesel (with bad motor)
74 Bus (Dad's)
72 Wife, 95 Cat, 96 Cat, 98 Kid, 00 Kid, 01 Dog
25 House