Thanks for the detailed explanation,
I think I have sounded as if I had not changed the fuel filter for years
(!!).....while that is not true, I must admit I am not very regular too. How
often should a change be?? How many miles/km?
I did tackle the problem today. Here is what I found..........
I took the in line disposable kind Bosch fuel filter off the hard line
exiting the body.....and could not believe what I found......a 2cm long plug of
what looked like a dust bunny!! Drat!! Pulled it out and felt it
good......fibres mixed with a bit of rusty crap. The fuel flow was not too
great too so I aspirated the line a bit and then pushed air back towards the
tank till I heard bubbles.
I know the right thing would have been to clean the tank and the line as
suggested but running short on time it was not possible. Being my daily ride, I
had to prepare for going off to work this afternoon. I know I must have simply
pushed more crap back into the tank for it to act up later. I do have a fuel
tank swap on the cards so I might do that sooner.
Anyway. Proceeded to replace the old filter. It really was not too dirty
and would have lasted more especially if I cleaned it as described. But I
decided to put in a new one as it may have to deal with more crap coming its
way.
Now what remains is to test the bug......the drive to work should reveal
any problems.....I doubt there would be any....fingers crossed!
Asad.
> Date: Mon, 1 Feb 2010 20:27:44 -0600
> From: [email protected]
> To: [email protected]
> Subject: Re: [vintagvw] Troubles with the bug...
>
> Fuel filter
>
> ...
>
> years
>
>
> ??!!
>
> Inline fuel filters don't generally last too many years in a daily
> driven VW. If you have access to an air compressor you should:
>
> 1. Drain and remove the fuel tank. Check/clean the sock filter while
> you're there.
>
> 2. Remove the old fuel filter(s). If they are the type that can be
> taken apart and cleaned then do so. If they are the cheap plastic
> throw-away style then throw them away (after finding new ones).
>
> 3. Disconnect the fuel line at the fuel pump INLET and use the
> compressor to blow back through the line toward the front of the car.
> Regulate the air, 10 or 15 PSI only, don't slam it with 90 psi.
>
> 4. Go to the spot where you removed the fuel filter and repeat the air
> blow so that you are cleaning the line all the way to the front of the
> car (fuel tank still out/disconnected).
>
> You may also want to squirt some light oil into the fuel line and
> repeat the compressed air after first blowing it "dry". The oil will
> help pick up any loose bits and carry them out the other end. Be sure
> to blow with air for a while to get most of the oil out.
>
> 5. Put it all back together.
>
>
> If you have "throw-away" filter(s) installed and cannot find a new one
> you can try to get some additional life out of the old one by forcing
> gasoline or mineral spirits through it "backwards" to flush out some of
> the blockage. Don't trust your eyes to decide if a fuel filter is
> "clean", especially in a dusty place. The particles blocking the filter
> can be VERY small and hard to see yet still block the filter paper
> element.
>
> G2
>
> On Mon, 1 Feb 2010 17:06:45 +0000
> asad ishaque <[email protected]> wrote:
>
> >
> > Mike,
> > Thanks for your thoughts.
> > I think a blockage somewhere in the fuel line is the top
> > possibility as you say. But how can I explain the poor gas mileage I
> > have been getting lately???? Can a blockage at any point explain
> > that?? Just tryin to wrack my brains on that...... I shone a torch
> > under the bug to see the filter near the trans after dark. It
> > *seemed* clean, though Id be sure when I jack up the car, pull the
> > left rear wheel adn get a good closeup look and maybe dismantle the
> > line to check the flow. I plan to do that tomorrow hopefully, have
> > been tied up with work. The filter is well clear of the trans or
> > other hot areas and so far over all these years I have never had any
> > trouble. But my running the tank dry may have triggered a chocked
> > filter/line. Best regards, Asad.
> >
> > > From: [email protected]
> > > To: [email protected]; [email protected]
> > > Date: Sun, 31 Jan 2010 07:27:09 -0500
> > > Subject: Re: [vintagvw] Troubles with the bug...
> > >
> > > Asad,
> > >
> > > I'm gonna guess, it's possibly a clogged fuel inlet screen (in
> > > tank), clogged fuel line, clogged fuel filter (by trans) or clogged
> > > fuel screen (inside fuel pump). Check and clean all of these
> > > locations, it seems to be fuel-related. I wouldn't advise ever
> > > installing any fuel filter in the gravity-feed fuel line (anywhere
> > > in the tank-to-pump lines); only on a pressurized fuel line
> > > (pump-to-carb line). If you do, it MUST be cleaned frequently or
> > > you will starve your pump, or experience vapor-lock when it gets
> > > hot (exhaust, trans, etc.). The gravity flow fuel feed line has
> > > very low volume/ pressure, and is easily reduced to nearly no flow
> > > by such a restriction in-line as a slightly dirty filter.
> > >
> > > YMMV,
> > >
> > > Mike B.
> > >
> > > ----- Original Message -----
> > > From: asad ishaque
> > > To: vw list
> > > Sent: Sunday, January 31, 2010 6:27 AM
> > > Subject: [vintagvw] Troubles with the bug...
> > >
> > >
> > >
> > > Volks,
> > > Thanks for the replies to my previous alternator conversion
> > > question. Had planned for the swap this weekend but something came
> > > up. My previously 100% reliable 68 daily driver has started to give
> > > trouble! Last week I ran out of gas after noticing I was getting
> > > bad gas mileage. Well, Pushed my luck and ran out just a few meters
> > > shy of the gas station. Filled her up and she ran well. Now this
> > > week, I am driving along a main road when I notice intermittent
> > > power loss. First I think its my imagination or lack of sleep. But
> > > then I enter an underground pass and the bugs really sputtering.
> > > Dies before the exit ramp. I start it after some attempts and just
> > > about make it up and park at the side of the road. I suspect crap
> > > in the carb so try to clean it a bit with carb cleaner and all.
> > > Starts up after some efforts and Im off again. Sputters a bit then
> > > dies again along another main road. Comes back to life after a bit
> > > and then dies again. I make it to a roadside shop adn proceed to
> > > dismantle the carb adn clean it up. I find no crap inside the float
> > > bowl though. A good cleanup later its back in the car. Runs good. I
> > > proceed home but then again along a main road the bug dies. Now I
> > > suspect the spark. I pull out the dizzy and replace the condensor
> > > with a brand new one. Good I had one in the car. Did not replace
> > > the point to save time. Just sanded it a bit to clean up a small
> > > visible pit. Reset the timing with a static light, this time a bit
> > > more advanced as it was retarted a bit earlier. Start her up and
> > > she runs beautifully. The sound had changed! I was a happy man! But
> > > today, while on the way back from work, the performance is
> > > repeated! Aaarghh! Now what could be possibly wrong with the
> > > car???? I am thinking of a chocked fuel filter. I run it in front
> > > of the engine ie where the gearbox is. Maybe it is not delievering
> > > enough fuel at high speeds??? Almost always the trouble was on long
> > > straight roads where one is in speed. Need to take a look at it.
> > > What else could be wrong???? Bad coil (runnign a nice Bosch from
> > > Brazil)?? but would it not be continous rather than intermittent??
> > > Bad slow jet??? Running an electric one in the Brazilian carb.
> > > Could this behave this way???? Any other ideas??? TIA for all your
> > > thoughts. AsadKarachi,Pakistan.
> > > _________________________________________________________________
> > > Hotmail: Free, trusted and rich email service.
> > > http://clk.atdmt.com/GBL/go/196390708/direct/01/
> > > _______________________________________________ vintagvw site list
> > > [email protected]
> > > http://lists.sjsu.edu/mailman/listinfo/vintagvw
> > > _______________________________________________ vintagvw site list
> > > [email protected]
> > > http://lists.sjsu.edu/mailman/listinfo/vintagvw
> >
> > _________________________________________________________________
> > Your E-mail and More On-the-Go. Get Windows Live Hotmail Free.
> > http://clk.atdmt.com/GBL/go/201469229/direct/01/
> > _______________________________________________
> > vintagvw site list
> > [email protected]
> > http://lists.sjsu.edu/mailman/listinfo/vintagvw
>
> _______________________________________________
> vintagvw site list
> [email protected]
> http://lists.sjsu.edu/mailman/listinfo/vintagvw
_________________________________________________________________
Hotmail: Trusted email with Microsoft’s powerful SPAM protection.
http://clk.atdmt.com/GBL/go/201469226/direct/01/
_______________________________________________
vintagvw site list
[email protected]
http://lists.sjsu.edu/mailman/listinfo/vintagvw
