rusty fuel filter neck

Hi Everyone, this is my first post after this weekend buying a beautiful 1984 mk1 1.6 GL cabbie. The car is in lovely condition (I'll upload a photo at some point) and I'd really like to take it to the odd show here and there.

The only issuse as far as I can tell is a rusty fuel filler neck, which has a little hole on its upper-side just behind the cap. Before this starts causing problems, I'd reall like to replace it, and maybe also try to get any residual crud out of the fuel tank using magnets (i read about this on another thread)

Anyway, I was wondering if you guys could offer me any advice on how I can go about replacing the neck? Do you know the specific part i need from GSF, for example, and if I found one on ebay, how would I know it was the right one? Is it a big job? Is there a thread I've yet to find explaing how to do it?

The car is garaged so I'm in no hurry to botch it. I'd really like to keep this beautiful car as sweet as possible.

Cheers

Can you get plastic versions of the fuel filler neck? Would seem sensible to me...

Don't think anyone does a plastic version, though you can get stainless, but they are pricey.

The cabby filler is different to the tin top version, so just make sure you are getting the right one if buying off ebay. Probably best to ask for part number and check it out for yourself.

Fairly easy job to do though…

Don't forget to check in the fuel tank for any debris that had dropped in. Last thing you want is it clogging up the injection system. Best way to do this is to remove the rear seats to reveal a round black hatch (where the fuel guage sensors sits. remove this and you will be able to see into the fuel tank with a torch. If there is rubbish in there you can clean it out with a magnet or you can go the whole hog and drop the tank and flush it out… Then dont forget to change the fuel filters after this if there is junk in there…