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Surge Tank - Petrol smell ??

B-Man

By B-Man,
in Engines & Forced Induction

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B-Man Grand Master

B-Man

Posted
Posted

Hey Peeps,

A while a go I had a surge tank fitted in the boot - but I got them to take it out cause I constantly could smell petrol and it really made me feel sick.

They told me that fuel can sometime seep through the rubber pipes used in the installation - not leak, but just fumes seepage or something like this.

Is this smell of petrol common with in-boot surge tank installtions ?

Is there any wat to completely eliminiate the fuel smell ?

Would braided lines help ? (I have heard no)

Cause I am thinking of doing another surge tank with in-line fuel pump this time but don't want any fuel stink.

Cheers,

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JimX Grand Master

JimX

Posted
Posted

Braided lines wouldn't help, because it's just metal meshed together and is not liquid proof at all. Braiding is just used for adding strength to the hoses so they don't expand as much under pressure, which isn't really your problem.

I would try finding the source of the leak. It probably is around any rubber bits you can find, although there may also be a pinhole or 2 in the tank welds. It could just be that you need better quality fuel hose to stop the smell coming through.

Out of interest, what pump did you have on the surge tank? Was it noisy?

B-Man Grand Master

B-Man

Posted
  • Author
Posted

Jim, it was a Bosche 044 - I beleive (in tank).

Paul, I had the tank in for 8 weeks + and the smell stayed - which is why I got it ripped out.

Maybe I get those fandangled fancy non-fumage hose specially for fuel and a different surgey.......

I'll gave a chat to the boys.

Roy Grand Master

Roy

Posted
Posted

Use small diam stainless steel tube with Swagelok/Tubelok fittings to pipe the pump from the tank->surge tank->existing lines.

You will need a tube bender, but your best bet is to just measure up the lengths and turns you need, make a simple sketch...and take it to a tubing company can have it made for you in 15minutes.

No smell, no leak points! And looks great/neat with polished stainless stell tube and fittings.

B-Man Grand Master

B-Man

Posted
  • Author
Posted

You are a clever bastard Roy !!! :rofl:

Of course - that makes sense ! - I was thinking all the time that I needed to use rubber - It never even ocurred to me to use SS -

Although now I think about it - they make fuel lines/rails out of high nickel content steel don't they ? Or Aluminum ??

I'm sure SS will work too but !

Cheers for that !

firebladejr Collaborator

firebladejr

Posted
Posted

I wouldn't worry about the petrol smell all that much.. I actually like it :rofl:

I did have a surge tank fitted in my rx3 coupe and had the same problem. I actually had two pumps in the boot and a surge tank... there were also two holes in the parcel tray where speakers used to be, so the smell would come straight through into the cabin... not too good if you wanna go places without smelling like your local servo.

B-Man Grand Master

B-Man

Posted
  • Author
Posted
Originally posted by firebladejr

I wouldn't worry about the petrol smell all that much.. I actually like it :rofl:

I did have a surge tank fitted in my rx3 coupe and had the same problem. I actually had two pumps in the boot and a surge tank... there were also two holes in the parcel tray where speakers used to be, so the smell would come straight through into the cabin... not too good if you wanna go places without smelling like your local servo.

Dude - you are better then me - 30 mins driving and I felt like hurling ! :(

JimX Grand Master

JimX

Posted
Posted
Originally posted by firebladejr

I wouldn't worry about the petrol smell all that much.. I actually like it :rofl:

I would - petrol is carcinogenic, especially premium unleaded. I would never tell anyone to not worry about petrol smell coming into the cabin. If you can smell any while you are driving along it is bad news!

GTS-t VSPEC Grand Master

GTS-t VSPEC

Posted
Posted

Roy, Mine was only $40 from a car store, and I've Tec-screwed it on the passenger side on the gearbox tunnel. I'm planning on setting it up so that it has a hose connected to it , and that it will spray the underbonnet directly from the cabin:D

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