Petrol Smell / Leak ??

[B-Man]

Hi Folks,

I recently got a surge tank installed along with a few other mods - Ever since then, I have had petrol smell wafting thru the cabin. I've looked for leaks , but can't find any. The economy has gone down, but that may be from the mods - But it also may be from a fuel leak somewhere??

Oh, I also got a big mutha Bosche in-tank fuel pump installed at the same time.

Anyone else have a surge tank and have petrol smell ???

I've looked at how the fuel lines were run, but can't find anything odd. There is a gap where the surgey fuels lines come out of the top of the metal plate above the tank - but the fuel tank is still sealed with standard fitting.

I've also been told that some fuel lines 'permeates' fuel - which I find and interesting concept..

I might have to take the surgey out to see if the smell goes away..

/edit: I have also checked the filler cap/neck - tis OK

Anyone got any other ideas - ?? What should I be looking for ??

Cheers,

[blind_elk]

Why have you got a surge tank AND an in-tank pump? Seems these 2 are mutually exclusive.

[DJ_L3ThAL]

i have a stock r33 and when i leave my car overnight sometimes when i come back to it the cabin has a petrol smell

[B-Man]

Originally posted by blind_elk

Why have you got a surge tank AND an in-tank pump? Seems these 2 are mutually exclusive.

Yep, I know what u mean..... No surge tank any more !!

[T0nyGTSt]

My car never smells of petrol. And this is 3rd '95 in the thread (!!!)

My car has *some* mods but not as much as Brendan's.

T.

[Blitz]

Brendan, I noticed a slight fuel smell on startup with the R, Mark at Unique quickly pointed out its a seal around the fuel filler that wears out and can be easily replaced.

That might be worth looking at

[T0nyGTSt]

Oh yeah, apparently some compliancers use silicon or some sealer that is eventually eaten away by petrol to install the fuel filler neck. Get this looked at.

T.

[B-Man]

yeah, i got the seal around the fuel filler replaced - but smell still there - however - have taken surgey out know - seems to be a little better - will know in a few days !!

Cheers,

[DJ_L3ThAL]

hmm, maybe i should get mine checkde too lol

[Guest INASNT]

have u still got your carbon canister (little black cyclinder) installed??

That filters alot of the petrol vapour

[Blackness]

INASNT

the carbon canister is at the front left, the black cylinder with mutliple pipes ?

running full exhaust, pod, bleed valve ... getting fuel smell (espically passenger side) when thrashed, more then I think is ok ...

anyone replaced their carbon canister ? did you get it and how much ?

[Ska]

Well I have a stock '93 R33 and when I go for a drive, be it 5 mins or an hour, once I stop and then let it sit for between 5 mins and 2 to 3 hours later I get the smell of petrol through the cabin, not overpowering, just enough to be really annoying. I dont get it when I am driving though, only just after I stop, not instantly either?

Funny thing is that if left overnight, sometimes it smells and sometimes not?

So please explain to this ignorant noob where to start I notice in other threads on this subject to check the filler for some type of seal, what exactly am I looking at/for? Also I have looked at the underside and engine bay for any petrol leaks, but to this untrained eye I cant see any obvious ones, no petrol dripping out of anywhere and no wet looking areas, but then again I really dont know what/where I sould be looking at/for.

It does not seem to be getting any worse or any better in the 3 months of owning it, so at least that's one thing

[EVO83]

Oh yeah, apparently some compliancers use silicon or some sealer that is eventually eaten away by petrol to install the fuel filler neck. Get this looked at.

T.

Its called SIKAFLEX and th RAWS CAN NOT use this any more. This is what the cheap barstards used to use but you got to use like a cement mix thing now. I dont work out the back that much so i dont know what its called. But yeah that could be it. As it gets eaten away very quickly.

[Flaps]

Sorry to hijack b-man, but

I have a petrol smell in my R32 wheneva i fill up. For the next (first) 1/4 tank i use, the cabin just stinks of it.

I have a R32 GTR fuel pump, there are no leaks in the boot that i can find

help?

[B-Man]

Hijack away fellas - I fixed my problem by taking the surge tank out - the rubber lines that went to the fuel tank seeped fumes - so that was my problem.

I'd be looking at the filler cap

Old lines

It's horrible smell I know - thankfully mine is fixed - When I get another surge tank, I'll be using either metal/steel/nickel lines or that special silicon (i think) non-seep / non-smell line