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Model specific boards => Golf mk3 => Topic started by: WadGTI on 21 July 2011, 19:25

Title: Fuel Filler Neck
Post by: WadGTI on 21 July 2011, 19:25

Hi Guys,

Golf failed its mot on a spot weld and fuel filler neck corrosion today. However, since some of the thread is missing from cleaning the neck up best I could. I have been advised by the MOT tester to buy a tempoary fuel cap. Seemingly when in place you press a but and it expands stopping any potenial leak. If you think of the O top of the neck and the @ being the fuelcap itself. The > comes out of the cap when the button is pressed - hope this is understandble. Thanks

O >@

Title: Re: Fuel Filler Neck
Post by: Wayne on 21 July 2011, 20:41

I believe tempoary fuel caps are a mot fail.

Title: Re: Fuel Filler Neck
Post by: boneybradley on 21 July 2011, 20:44

I believe you can use temp caps as long as the flap locks...

Title: Re: Fuel Filler Neck
Post by: WadGTI on 21 July 2011, 21:09

Quote from: boneybradley on 21 July 2011, 20:44

I believe you can use temp caps as long as the flap locks...

Sorry I may just stupid. What  do you mean when the flap locks?

Title: Re: Fuel Filler Neck
Post by: boneybradley on 21 July 2011, 21:10

when you lock the car the flap should be locked (it's part of central locking)

Title: Re: Fuel Filler Neck
Post by: WadGTI on 21 July 2011, 21:31

Ah I get you now lol.

Well the MOT tester described how the fuel cap I described works in the first post. I dont ever recall seeing the described ones before. I mean he sound happy to pass it if I get one like it lol.

Title: Re: Fuel Filler Neck
Post by: boneybradley on 21 July 2011, 21:33

I haven't seen them either....sound much better than he push in ones!

Title: Re: Fuel Filler Neck
Post by: thai-wronghorse on 21 July 2011, 21:58

When I used to do MOT's many years ago temporary fuel caps were always a failure as far as I can remember....that said, I know the kind of expanding cap you mention and can't see why this wouldn't be fine as they're normally quite secure.

Title: Re: Fuel Filler Neck
Post by: thai-wronghorse on 21 July 2011, 21:59

Those flexible propeller type caps are sh!te though.

Title: Re: Fuel Filler Neck
Post by: WadGTI on 21 July 2011, 22:03

Quote from: thai-wronghorse on 21 July 2011, 21:58

When I used to do MOT's many years ago temporary fuel caps were always a failure as far as I can remember....that said, I know the kind of expanding cap you mention and can't see why this wouldn't be fine as they're normally quite secure.

Thanks for that. Any idea what they would be called, trying to search ebay, but not getting anything.

Thanks

Title: Re: Fuel Filler Neck
Post by: WadGTI on 21 July 2011, 22:19

Some of the thread from the neck came of as it was badly rusted. The cap only turns one revolution and its in place. My other car (seat) turns about 3.5 - 4 revolutions to lock in. I am wondering if I would get away with a long universal fuel cap.

Anyone know if the neck on the mk3 is solid with the tank or can be replaced sepratley?

Thanks

Title: Re: Fuel Filler Neck
Post by: madmanmart on 21 July 2011, 22:37

All in one piece matey.

Easy enough to swap though.

Title: Re: Fuel Filler Neck
Post by: WadGTI on 21 July 2011, 22:47

Quote from: madmanmart on 21 July 2011, 22:37

All in one piece matey.

Easy enough to swap though.

I take it - undo the fuel tank straps (possibly replace?), undo a few bolts  and should come from underneath. I swapped a fuel tank in a nissan 200sx a few years back but tbh can't recall how I done it.

Thanks

Title: Re: Fuel Filler Neck
Post by: Wayne on 21 July 2011, 23:30

Quote from: WadGTI on 21 July 2011, 22:47

Quote from: madmanmart on 21 July 2011, 22:37

All in one piece matey.

Easy enough to swap though.

I take it - undo the fuel tank straps (possibly replace?), undo a few bolts  and should come from underneath. I swapped a fuel tank in a nissan 200sx a few years back but tbh can't recall how I done it.

Thanks

That is about it, you need to pull the fuse for the fuel pump and then run it until it stops that lets the pressure out of the fuel system.