Fuel return

sburford · Padawan Joined: 27 May 2009 Posts: 82

Hi guys,

Im making some progress on my project and have come to fitting the fuel return for my conversion. Im putting a DX gti engine (KJET) into a 68 bay and have at present put a T into the fuel breather on the top of the tank for the return, but im concerned some fuel will just be pumped out the van when its on. So do i need the breather or can i just feed the return into the tank direct with no T and remove the breather pipes completely? what have others done? cheers

shaun

ElusiveStranger · Posted: Wed Apr 14, 2010 8:53 am Post subject:

Have you got two tank breathers? I know late bays have 2 on top of the tank.

You will need a "free" breather or you might collapse your tank like I did (There's a thread on here somewhere)

You're sucking out fuel - you need to replace it with air
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sburford · Padawan Joined: 27 May 2009 Posts: 82

only got one as i can see, so how can i configure it so make sure only vapour and not fuel can travell down the breather?

sburford · Padawan Joined: 27 May 2009 Posts: 82

hmm on this i have been wondering rather than the breather, what if i t into the supply before the pump and use a non return valve, so any returned fuel goes into the pump again? would this work better?

really really don't want to get this bit wrong, else bye bye bus... Sad

ElusiveStranger · Posted: Wed Apr 14, 2010 3:32 pm Post subject:

Maybe a vented fuel cap

Here's what happened to mine.

http://www.vwkd.co.uk/bb/viewtopic.php?t=2572&start=0

I think most was done because I'd connected the tank to the Subaru Purge Control without using the Charcoal Can.

BUT, you still have to replace the used fuel
_________________
The advice you receive on here is worth the paper it's written on.
Your experiences are worth shed loads to others, including the f'ups - live and learn.
Wouldn't YOU rather learn by someone else's mistakes? So would they.

'78 Bay, 2 litre 091 box, EJ20 NA & the ashtray's on the 'right' side.
I don't lean forward for hills any more Grin

Bugger, missed out on "Live fast, die young"

gerrelt · Posted: Wed Apr 14, 2010 5:11 pm Post subject:

Have you seen this thread?: Link to Golf Cache tank thread

It's only 20 euro's for a factory spec (small) cache tank, and you don't have to change your tank out- or inlets.

Once I get my other projects done, I am going to install one of those.
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famous phil · Posted: Wed Apr 14, 2010 5:21 pm Post subject:

sburford · Padawan Joined: 27 May 2009 Posts: 82

cheers for the ideas. My engine is now in and im loathed to remove it again and the tank foolishly was nearly full when i started, so removing the tank or any kind of drilling near it is off. i thought it'll be an easy job to tap into the lines but clearly not. so a T near the fuel tank supply is generally agreed to be a bad idea then... cabbie fuel canister thing looks interesting, but i would then need another fuel pump as i understand it. looks quite involved...

gerrelt · Posted: Wed Apr 14, 2010 6:59 pm Post subject:

sburford · Padawan Joined: 27 May 2009 Posts: 82

hmm interesting. That would solve all my problems then. Is this a from VW job. cant find it online anywhere.

gerrelt · Posted: Thu Apr 15, 2010 6:06 am Post subject:

Paste this part-number in google: 533201511A

And you'll find several online shops that sell it.

But I think you can order it at a VW dealership too.
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sburford · Padawan Joined: 27 May 2009 Posts: 82

online shops all seemed to be in america, by VW UK do it for £13 including VAT so bargain i say and should be a much better solution to the T ive done.

cheers for the tip off on the part, just what i needed.