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Fuel leak

Girigiri

By Girigiri,
in General Maintenance

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Girigiri Contributor

Girigiri

Posted
Posted

My car stinks of petrol! Its so bad its giving me headaches... The first time i filled the tank all the way petrol gushed out from around the top of the tank and spilled behind the car so since then i have only filled it half way.

I tried pulling out the filler neck where there was marks of leaking but the seal seemed perfectly new and the bolts firmly held it in place, there certainly wasnt enough space to be causing such a bad smell and gushing fuel.

I'm guessing Ill have to drop the tank and look for leaks elsewhere... has anyone hada problem like this?

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boost4130 Contributor

boost4130

Posted
Posted
My car stinks of petrol! Its so bad its giving me headaches... The first time i filled the tank all the way petrol gushed out from around the top of the tank and spilled behind the car so since then i have only filled it half way.  

I tried pulling out the filler neck where there was marks of leaking but the seal seemed perfectly new and the bolts firmly held it in place, there certainly wasnt enough space to be causing such a bad smell and gushing fuel.

I'm guessing Ill have to drop the tank and look for leaks elsewhere... has anyone hada problem like this?

yeah man my 33 gets fuel fumes through the air con vents 2 wen ur cruzin along...dont know what it is tho. i checked all fuel lines, they r tight so i dont know wats up either...

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elbee111 Proficient

elbee111

Posted
Posted
are there any turbo 33's that don't have this same fuel smell?

I think not!

Gee. That's a big statement.

Mine had the standard troubles with the filler neck not holding pressure, due to a slack conversion for compliance.

Once I fixed it with Sikaflex there has been no odour at all since.

If you can see vapour on a warm day in your drivers mirror it could be the same problem.

El Bee

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daler32 Proficient

daler32

Posted
Posted

ive got a 89 r32 and when i bought it the fuel tank had a big dent in it so i got the guy to replace it and now it leaks wen i fill it right up. any info on how to fix it would be great as it is rather annoying that i cant put a full tank in it and embarrassing when at the station and fuel is pissing out of my car

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  • 1 month later...
RTHRTY3 Rising Star

RTHRTY3

Posted
Posted
Gee. That's a big statement.

Mine had the standard troubles with the filler neck not holding pressure, due to a slack conversion for compliance.

Once I fixed it with Sikaflex there has been no odour at all since.

If you can see vapour on a warm day in your drivers mirror it could be the same problem.

El Bee

Sorry to bring this up again. But i'm travelling long distance for like 6hrs drive in the next couple of days and just like to fix this problem. So how do u go about fixing this filler neck with sikaflex, step by step info would be great.

thanx alot

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elbee111 Proficient

elbee111

Posted
Posted

RTHRTY3,

It was a fair while ago now but here goes,

1. Have a look at your petrol cap and give it a wriggle and see if it moves around. If it does then,

2. Unscrew the cap and grab the metal filler neck, probably brass colour, see if this moves around. If so (like mine) you definately proceed to step 3. Otrhewise, if you can see evidence of vapour or spillga aroung it you can also say it needs doing. (A visual inspection should tell you if it is the problem.

3. Remove the filler neck assembly. Mine took no effort at all as it was held by a couple of dabs of a compound that went hard and, therefore, brittle.

4. Once removed, clean the surfaces of the neck that mate with the wide mouth that is left in the side of the car and clean this area too.

5. Apply a continuous bead of Sikaflex around the area of contact.

6. Position the filler neck in its final position and push it home.

I only took one or two pics and they were after the fact but will try to find them and post soon.

El Bee

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eXc Mentor

eXc

Posted
Posted

Just thought I'd suggest something else. Mine had the same problem and it was just the seal in the boot....I don't know the names of things, but anyways...

Remove carpet in boot

See the tank access panel? Remove the cover,

then remove the actual 'lid' to the tank. You will need to take the fuel lines off to do this...the above thread someone linked to tells you about it.http://www.skylinesaustralia.com/forums/sh...ead.php?t=75374

It will have the fuel pump attached to it. Pull that out (it will drop fuel everywhere, so have a container ready to sit the pump etc in (it's about 1 foot long)

You will see a rubber seal (o-ring) that seals between the tank and the 'lid'. Take that to a bearing shop (I had to go to about 3 before I found one that stocked one) and get a new one ($10 tops..I payed $5, but it was listed as $2, but their minumum sale point was $5...) *MAKES SURE YOU TELL THEM IT IS A FUEL SEAL, SO IT NEEDS TO BE FUEL SAFE*

Nissan also have them, but they wanted $30.

Apart from the driving around to get the seal, its a 20 minute job. For $5-10 I'd replace the seal to make sure it isn't that.

Cheers

Chris

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RTHRTY3 Rising Star

RTHRTY3

Posted
Posted
RTHRTY3,

It was a fair while ago now but here goes,

1. Have a look at your petrol cap and give it a wriggle and see if it moves around. If it does then,

2. Unscrew the cap and grab the metal filler neck, probably brass colour, see if this moves around. If so (like mine) you definately proceed to step 3. Otrhewise, if you can see evidence of vapour or spillga aroung it you can also say it needs doing. (A visual inspection should tell you if it is the problem.

3. Remove the filler neck assembly. Mine took no effort at all as it was held by a couple of dabs of a compound that went hard and, therefore, brittle.

4. Once removed, clean the surfaces of the neck that mate with the wide mouth that is left in the side of the car and clean this area too.

5. Apply a continuous bead of Sikaflex around the area of contact.

6. Position the filler neck in its final position and push it home.

I only took one or two pics and they were after the fact but will try to find them and post soon.

El Bee

hey thanx alot that fixed the problem and no more petrol smell, plus i now get the schweppes pssshh sound when opening the cap! :uh-huh: :)

cheers mate

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