Just wanted to update everyone in case they should have this problem
in the future. I pinpointed to the problem to a clogged pickup tube
screen. I tried several different solvents and back flushed it but it
really only solved the problem temporarily. I then decided to just
suck it up and remove the tank. I also removed the fuel level sender
so I could look into the tank. I took pics, which I may post, if
anyone thinks they would be useful. My fuel level sender was rusting
apart, which probably explains why it only works when it feels like
it. The screen was completely clogged by ????. I'm not sure what. I
think that the oil and diesel fuel were having a reaction in the tank
with the galvanized surface which is then blocking the screen. That's
my best guess anyhow. I put some solvent in the tank, swirled it
around, dumped it all out. Repeat. Put it all back together and
everything seemed great...that is, for about a week. Then I started
having the same type of issues, which is where I was at last night.
Somone had suggested to me to switch the fuel out and return lines
which I did (on side of the road, mind you!) Problem solved. The
return line has no screen so it should't ever clog. The only problem
is that whatever is clogging the tank screen will eventually make it
to the fuel filters, which I feel is much better and easier to deal
with than the tank screen.
This whole experiece begs the question, why have a tank screen at all?
It's a PITA to service and you have fuel filters already.
thoughts, comments..
-Tony
On 7/28/05, gary freeman <riven2649@yahoo.com> wrote:
> Check if it's hard to open your fuel cap and if
> there
> is a release of pressure when you do. We use to have
> vent lines get clogged or have the wrong fuel cap,
> and the fuel tank would actually collapse. We would
> then fix the problem, and using a rag to seal off
> the
> fuel tank filler neck, we would use compressed air
> to
> blow the tank back out. Whatever kind of diesel you
> are using, it tends to grow algae in the tanks; so
> you have to use a good quality additive. It's been
> awhile since I've been involved in this, but Red
> Line
> used to have a good additive. I also wanted to
> mention the other day about chemicals for various
> reasons-carbon intake cleaners, valve cleaners,oil
> leak stoppers for engines that work and cause no
> problems, and diesel fuel additives. It's a German
> brand called Lubri-Moly, and the only place I know
> to buy them is from The Brinson Co. which has
> offices
> in New Orleans, Houston, and Chicago. They're also
> great for Grey market car parts and OEM but cheaper
> prices for M.B., Volvo, and BMW parts. Ask for Tom
> in New Orleans-he's very well informed.
>
> Gary
>
>
> --- Karydas <karydas@hol.gr> wrote:
>
> > Here is a crazy idea, Tony, that may be worth a
> > shot. By way of
> > background, wax (paraffin) deposition and the
> > accompanying flow
> > restriction is a very common problem in oil wells,
> > especially in the
> > Wasatch range. The production companies use
> > paraffin anti-deposition
> > chemicals to mitigate the problem, and in my naïve
> > thought pattern there
> > is little difference between your fuel tank/fuel
> > delivery system and the
> > oil well pumping system. I would just get an
> > additive of this sort from
> > an oil well service company in Utah/Colorado/Wyoming
> > and add the
> > recommended treatment level in your tank, preferably
> > on a really hot
> > day. Just make sure you ask for a nonionic, non
> > fluorinated additive so
> > it does not interfere with all the other diesel
> > additives. And I am
> > ashamed to say that but hey, we live in a litigious
> > society, I would
> > give it a shot if it were my car, but if you want to
> > try it, do so at
> > your own risk. (Sorry, I know this sounds terrible.)
> >
> > Good luck
> >
> > Thanos
> >
> > -----Original Message-----
> > From: peugeot-L@yahoogroups.com
> > [mailto:peugeot-L@yahoogroups.com] On
> > Behalf Of Tony O
> > Sent: Friday, July 22, 2005 8:48 PM
> > To: Peugeot List
> > Subject: [Peugeot-L] Fuel tank problems - 86 505TD
> >
> > Hey guys.
> >
> > Recently had to get the little wench towed 50 miles
> > (luckily had AAA)
> > because I am having some major issues with a fuel
> > blockage in the
> > tank. The car doesn't get enough fuel to go over 30
> > mph. I have done
> > a bit of R&R and it's not the filters. It's
> > definitely coming from
> > the tank. The problem is neither the haynes manual
> > or any of my
> > factory manuals say much about the fuel tank or the
> > filter in it. I
> > have the tank behind the seat and am wondering where
> > is the pickup
> > screen? (assuming there is one) How do I remove it
> > or does anyone
> > have any suggestions for cleaning it in tank?
On
> > solvent or something...
> >
> > just for background, what is most likely causing
> > blockage is wax that
> > has precipitated out of the diesel fuel. You see, I
> > was running a
> > "blend" in this car of diesel and vegetable oil
> > (heated) and often
> > times the reaction with vegoil will neutralize the
> > stabilizers in the
> > diesel and cause the waxes to fall out and clog your
> > filters, etc.
> > Rest assured, I will not run a blend in this thing
> > again, once I get
> > it solved - or at least not a diesel/wvo blend.
> >
> > any help would be appreciated.
> > -Tony
> >
> >
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Received on Mon Aug 1 10:07:16 2005
