[Vwdiesel] Fuel hose routing help.
Drew MacPherson
drew at scirocco.cs.uoguelph.ca
Sat Mar 1 23:31:19 EST 2003
Does it look like this?
http://scirocco.cs.uoguelph.ca/gtd/jeg-89-1-30-43-20.JPG
If so, then it's an altitude corrector - I've never seen one on a Canadian
model before (at least not in Ontario.) Did your car come from the West
coast originally?
Drew
On Sun, 2 Mar 2003, Jeff Rakus wrote:
> Well it's pretty grime coated in there, but yes there is a connection on a
> switch at the top of the thing. I think it could be a altitude compensation
> of some sort ? I'll look for a parts number. It has a thin hose out the
> bottom from a cylindrical
> can below a double pie tin shaped thing on the top where the switch is
> attached. I'll let everyone know what happens
> after I get the hoses re-routed. Tnx again,
> Jeff
>
>
>
>
>
>
> ----Original Message Follows----
> From: Drew MacPherson <drew at scirocco.cs.uoguelph.ca>
> To: Jeff Rakus <turbobrick at hotmail.com>
> Subject: Re: [Vwdiesel] Fuel hose routing help.
> Date: Sat, 1 Mar 2003 21:27:31 -0500 (EST)
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>
> It's amazing how people can mess things up sometimes... It may be
> worthwhile to replace the filter with a new one (you can reuse the
> pre-heat valve if it is not cracked.) When redoing the connection, make
> sure they're clean (esp. the feeder to the pump) and tight. I bought a
> TDI-style inlet barb for my pump - that allos a 5"16 fuel line to be
> clamped onto it - you can then run that back to the filter if the stock
> line is damaged LMK if you need part numbers.
>
> I'm not sure about the device you're describing next to the filter - does
> it have any wires connected to it? Part numbers visible?
>
> I work in Guelph and live north of Mount Forest.
>
> Drew
>
> On Sun, 2 Mar 2003, Jeff Rakus wrote:
>
> > Hello! thanks for your help!
> > With the help of the diagram you sent I am now able to put things in
> order.
> > What I have found out was that whomever put the engine in had the the
> main
> > fuel line running into the banjo fitting
> > #11 on the pump. The return line was connected to the input of the of the
> > filter and the out put of the filter was connected to the fitting (#12)
> on
> > the top of the pump! The pre-heater was not connected at all! So my
> concern
> > now is
> > if any junk has gotten into the pump or maybe wax? It was acting as
> though
> > it had a fuel line problem back when the weather was warmer (about 10or
> so
> > C). Next to the filter is a device that looks like a barometeric cell of
> > some sort that has a switch on it and a small hose coming out the bottom.
> > The small hose is disconnected. How far are you from London?
> > TIA Again, ~ Jeff
> >
> >
> >
> >
> >
> >
> > ----Original Message Follows----
> > From: Drew MacPherson <drew at scirocco.cs.uoguelph.ca>
> > To: Jeff Rakus <turbobrick at hotmail.com>
> > CC: VW Dieselfans <vwdiesel at vwfans.com>
> > Subject: Re: [Vwdiesel] Fuel hose routing help.
> > Date: Sat, 1 Mar 2003 17:44:36 -0500 (EST)
> > MIME-Version: 1.0
> > Received: from scirocco.cs.uoguelph.ca ([131.104.25.18]) by
> > mc7-f5.law1.hotmail.com with Microsoft SMTPSVC(5.0.2195.5600); Sat, 1 Mar
> > 2003 14:41:32 -0800
> > Received: from scirocco.cs.uoguelph.ca (scirocco.cs.uoguelph.ca
> > [131.104.25.18])by scirocco.cs.uoguelph.ca (Postfix) with ESMTPid
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> > Return-Path: drew at scirocco.cs.uoguelph.ca
> > X-OriginalArrivalTime: 01 Mar 2003 22:41:33.0164 (UTC)
> > FILETIME=[B57612C0:01C2E043]
> >
> >
> > Here's a snap from EPC for your year:
> >
> > http://scirocco.cs.uoguelph.ca/gtd/JEG-89-2-01-68-00.JPG
> >
> > 89 uses a pre-heat valve in the filter - this re-circulates return line
> > fuel in the filter below 5C or therabouts to help prevent waxing or
> > gelling.
> >
> > The correct routing for models with pre-heat is:
> >
> > feed line from tank (this is the larger diameter pipe) to filter inlet.
> > Filter outlet goes to pump inlet - banjo at lower right front of pump (11
> > in picture)
> >
> > return line from pump (top of pump) goes to pre-heat valve on filter
> > (arrow on vlave indicates correct flow) Other end of valve is return
> line
> > to tank (smaller pipe.)
> >
> > It sounds like someone has swapped your filter for one without preheat
> > valve. The routing is similar, except that the return from the pump goes
> > straight into the return line to the back of the car (smaller pipe.)
> >
> > Leaks at the supply line allow air into the system, which will make for
> > hard cranking, warm or cold. Leaks at the return side can allow air to
> > enter the system as well, especially if the factory check valves have
> been
> > removed (A2/A3 only)
> >
> > HTH,
> >
> > Drew
> >
> > On Sat, 1 Mar 2003, Jeff Rakus wrote:
> >
> > > This is a multi-part message in MIME format.
> > > --
> > > [ Picked text/plain from multipart/alternative ]
> > > Hi All,
> > >
> > > I need to know what the fuel hose routing should be on my '89 Jetta .
> > > There are two hoses from the back , one has a t fitting that is
> blocked
> > off and
> > > it connects to the injector pump on the left lower side as you face
> the
> > car.
> > > This hose seems to be wet with fuel near the pump. The other hose from
> > the back
> > > goes into the filter and and from the output of the filter it goes
> into
> > the top of
> > > the injector pump marked out. Since the engine has been replaced with
> > what I
> > > believe is a older ~ '85 or '86 engine with the valve maint. sticker
> on
> > the cover,
> > > Perhaps the hoses are incorrectly placed. It's been hard to start when
> it
> > was cool
> > > and with the temp today in the midlin' 30's even with a fully charged
> > battery it would not go.:~(
> > > So I await your verdict. The Bentley has no photo's of the hose
> routing.
> > > TIA Jeff
> > > _______________________________________________
> > > vwdiesel mailing list
> > > vwdiesel at vwfans.com
> > > http://www.audifans.com/mailman/listinfo/vwdiesel
> > >
> >
> >
> >
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