Re: [tech] [gas tank] pre-transfer pump tanks [FI]

["Ewan Hopkins" <ewanhopkins@hotmail.com>]

The sender plug is a twist & lock fit.  Just tap it round - about 1/8 of 
a turn should be enough - and it will come loose.  The filter is a sort 
of nylon mesh on the bottom of the pickup and it can get well clogged, 
causing the main pump to overheat cause it isn't getting enough fuel 
flowing thru it.  The fact that the pump is noisy sort of backs this up.  
If the engine hasn't been run at all for several years, it might be that 
the injectors are clogged - I've heard that you get crystalline deposits 
forming if the petrol is left to sit a long time.  Ultrasonic cleaning 
or new injectors is the only cure for that.  A friend of mine had this 
problem with a VR6 which had been lying for a couple of years:  it 
barely ran at first so he had the injectors cleaned and it went sweet as 
a nut first time.

I've been told that the only way to get the tank clean is to take it off 
the car and then wash it out. I can't see whay you can't just jack it up 
so that the filler inlet to the tank is at the lowest point and 
disconnect the filler inlet hose.  Then you can squirt in your cleaner 
thru the hole in the top and rinse out with petrol.  I suppose this 
presumes that the filler inlet is right at the bottom of the tank - I 
can't remember offhand.

HTH

Ewan Hopkins...

'85 Storm 2.0
'86 GT 1.8


>From: "Mark Peele" <scirocco_s@hotmail.com>
>To: scirocco-l@scirocco.org
>Subject: [tech] [gas tank] pre-transfer pump tanks [FI]
>Date: Tue, 16 Feb 1999 05:42:47 PST
>
>In this case the tank is a 1981 Scirocco.
>
>I suspect that there is residue or something worse in the tank.
>
>I want to look into the tank.
>
>My bentley indicates that there is a fuel filter of some type (fuel 
>pickup filter). So i takes the rear seat out. There is a round plate 
>with three screws. I removes it. Voila! There is the sender plug. Is 
>this thing threaded?
>
>basically, I'd like to get all the crap out of the tank. The car has 
>been sitting for several years. I got it started yesterday - but I 
could 
>not keep it running. The fuel pump was complaining like it was trying 
to 
>pump goo or something.
>
>Any help appreciated.
>
>Mark Peele
>1981 Scirocco S
>1982 Scirocco
>1987 Golf GT
>http://home.t-online.de/home/Scirocco2/mark.htm
>
>
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