Cleaning Fuel System

Hi, 1st proper post, so go easy!

My 1990 GTI cabby has developed a light misfire on acceleration and just does not pull well. The filler neck had been changed previously, so yesterday I started at the tank end and low and behold, the remains of the old fillerneck and all sorts of crud were in there. Cleaned that all away and today started on the pump and accumulator - nice install!



Eventually wrestled both pump and accumulator off the car and yet more crud



My aim is to check the fuel system from back to front (if that makes sense), and replace where necessary. When I had removed the pump and accumulator I found this;



It looks to be made of plastic and does not appear in my Haynes - anyone know what it is and is it likley to full of more crud?

Also what is the best way of clearing the fuel lines and where can I get the proper holding bracket and foam surround for the new pump? When I get the the metering unit, is that easy to clean out?

Cheers
Harvey.

the small plastic tank can be bought from VW, they are a common
fault as well, as basiclly it a mini swirl pot, and holds some crap too

Is it a tank out job?

Well that sorted that one!

When I get the the metering unit, is that easy to clean out and are there any other parts of the system that will need checking?

Right, got the metering head etc off - even more crud out of the fuel filter;





I'm amazed that the car actually ran!

Is the metering head a service item - can it be opened up, cleaned and put back together?

Cheers Harvey.

Well to sum up;

Tank emptied and cleaned out
New in tank fuel pump and strainer - Rich at Crazy Quiffs
New expansion tank - VW
New fuel pump - GSF
New Accumulator - VW
New fuel pump cradle - Rich at Crazy Quiffs
2nd hand fuel pump foam holder
New fuel filter - GSF
New injectors - GSF
Hired compressor and blew out all fuel lines & hoses

Result

5 litres of dirty fuel
A car that goes just great, pulls all the way
A smile from ear to ear

Many thanks to Rich for his time and help.

:clap: Top job , amazing where the crud comes from ..........

Great job. Useful info.