fuel tank leaking

[sniffy]

the place where i bought my car has done a number of dodgy things while compliancing it...using silican on the fuel cap is one of them...after the fuel ate the silican away, the inlet peice is now loose and i could probably pull it out if i try. my car hisses when it is warm or if i have been driving for a while. i was told that it shouldnt do that, that there should be a little hole somewhere as a release. is this right?

what to do? i was told seleys needit would stop the leak...but it sounds like i need to make another leak!!!!?

[predator]

Depends, petrol tends to eat away at anything you put in to plug any leak.. Its a difficult one to fix. You can buy this "petrol tank repair" gunk from like Repco which is like putty stuff - I found however the best stuff was the other type which was a two colour strip and you had to kneed it together (same brand).

What is the exact problem? Its not clear exactly from your description? The part where you stick the petrol spout into is wiggling around? or there is a crack in the pipe? or a crack in the cap?

I had the problem in an old car with a hole in the petrol tank... had to do it time and time again until eventually I fixed it.

[Pva_Glue]

once you fill her up full then when it gets empty when you open fuel cap it should make ppppssssssseetttt noise... means it is well sealed...

no noise then it's leaking...

cheers

joe

[sniffy]

it the piece that you put the nozel in, the part that you can see when you pop the fuel tank poper! (the part that the cap srews onto!)

id take a pic but i have no digi cam:(

[sniffy]

Originally posted by Pva_Glue

once you fill her up full then when it gets empty when you open fuel cap it should make ppppssssssseetttt noise... means it is well sealed...

no noise then it's leaking...

cheers

joe

but isnt that putting pressure on the fuel pump?

[hippy]

is ur feul cp very tight?? i mean when i close mine .. i close it to the click and it keeps clickin if i keep rotating it .. but it doesn't feel very tight at all .. and to open it ... i don't have to use much force it all ... opens very easily ... and i dont' think it gives a very loud ppppssssssseetttt noise at all ... as pva puts it ... is there something wrong??

[sniffy]

mine seals alright with the top part...but that part isnt sealed that causes the problems!

[rs73]

it's kindof a safety thing in the fuel cap, so you don't over tighten it. but the rubber seal around the cap is tight enough to seal any leaks... if they're still good.

I get a loud phsssst when opening the fuel cap when it's about 1/4 left. Nothing wrong I guess, as all my previous cars did the same... less phssst noise if you open it up when they're still full or halfway...

[blind_elk]

There's a simple solution - take it back to the cowboys that complianced the car and tell them to fix it. If they don't, you'll report them to Fair Trading.

[R31Nismoid]

I know what you mean exactly.

i have the same problem with mine i just brought.

when hot or over 1/4 full it just leaks fuel out the edges, not heaps though barely noticable apart from the dirt that sticks to it and the smell

It's something to do with the Unleaded Breather thing.

Very common problem so i'm told!

I'm looking to fix mine aswell as the smell get's me high as a kite sometimes.

If ya wanna do halvies in a tub of that goop stuff let me know cause i'll be fixing it hopefully this week.

[mr180]

R31Nismoid: Did you get it fixed with that stuff from Repco? I've just noticed some fuel leaking out the edges of my tank recently and don't remember hearing a noise opening the fuel cap today. I thought it was because of the new Bosch pump I had put in as it has only just started leaking, but maybe some seals have worn out...

[sniffy]

well i got round to "sealing" it with some selleys knead-it...sealled it alright...about a month ago when it was 40deg. i drove to ballarat...3/4 way there my car started making a horrible noise. hard to explain, but it scared the shit out of me. when i got to ballarat, i went to fill up. when i opened the cap there was so much pressure built up in there it fizzed and hissed for about a minute or two!!! it sounded like the fuel was boiling!!! the inlet flap was hot too, could hardly touch!! i got scared, thought it was gonna blow up, so i put the cap on after it calmed down a bit. 5 min later i took the cap off again, and it hissed and fizzed like before! i ended up driving around with the cap on half way so it leaked but didnt build up pressure.

that was the only time it has done that since, but it hasnt been that hot since then either. can an extra 5 - 10 deg. do that to a fuel tank...(maybe under pressure?) is it as dangerous as it sounded? or am i worried about nothing? how do i fix?