Jump to content
SAU Community

Surge Tank - Petrol smell ??

B-Man

By B-Man,
in Engines & Forced Induction

 Share

Recommended Posts

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,

Link to comment
https://www.sau.com.au/forums/topic/26932-surge-tank-petrol-smell/
Share on other sites
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

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • brillo
      Leak from Tokico BM50 Brake Master Cylinder

      By brillo · Posted

      Hi, SteveL Thank you very much for your reply, you seem to be the only person on the net who has come up with a definitive answer for which I am grateful. The "Leak" was more by way of wet bubbles when the pedal was depressed hard by a buddy while trying to gey a decent pedal when bleeding the system having fitted the rebuilt BM50 back in the car, which now makes perfect sense. A bit of a shame having just rebuilt my BM50, I did not touch the proportioning valve side of things, the BM50 was leaking from the primary piston seal and fluid was running down the the Brake booster hence the need to rebuild, I had never noticed any fluid leaking from that hole previously it only started when I refitted it to the car. The brake lines in the photo are "Kunifer" which is a Copper/Nickel alloy brake pipe, but are only the ones I use to bench bleed Master cylinders, they are perfectly legal to use on vehicles here in the UK, however the lines on the car are PVF coated steel. Thanks again for clearing this up for me, a purchase of a new BMC appears to be on the cards, I have been looking at various options in case my BM50 was not repairable and have looked at the HFM BM57 which I understand is manufactured in Australia.  
    • Gantai
      R33 GTST Steering Rack (49001-19U05) Rebuild?

      By Gantai · Posted

      PXL_20250828_063541093.TS.mp4
    • Gantai
      R33 GTST Steering Rack (49001-19U05) Rebuild?

      By Gantai · Posted

      Well the install is officially done. Filled with fluid and bled it today, but didn't get a chance to take it on a test drive. I'll throw some final pics of the lines and whatnot but you can definitely install a DMAX rack in an R33 with pretty minor mods. I think the only other thing I had to do that isn't documented here is grind a bit of the larger banjo fitting to get it to clear since the banjos are grouped much tighter on the DMAX rack. Also the dust boots from a R33 do not fit either fyi, so if you end up doing this install for whatever reason you'll need to grab those too. One caveat with buying the S15 dust boots however is that the clamps are too small to fit on the R33 inner tie rod since they're much thicker so keep the old clamps around. The boots also twist a bit when adjusting toe but it's not a big deal. No issues or leaks so far, steering feels good and it looks like there's a bit more lock now than I had before. Getting an alignment on Saturday so I'll see how it feels then but seems like it'll be good to go       
    • PranK
      R35 GT-R production ends after 18 years

      By PranK · Posted

    • SteveL
      Leak from Tokico BM50 Brake Master Cylinder

      By SteveL · Posted

      I don't get in here much anymore but I can help you with this.   The hole is a vent (air relief) for the brake proportioning valve, which is built into the master cylinder.    The bad news is that if brake fluid is leaking from that hole then it's getting past the proportioning valve seals.   The really bad news is that no spare parts are available for the proportioning valve either from Nissan or after market.     It's a bit of a PITA getting the proportioning valve out of the master cylinder body anyway but, fortunately, leaks from that area are rare in my experience. BTW, if those are copper (as such) brake lines you should get rid of them.    Bundy (steel) tube is a far better choice (and legal  in Australia - if that's where you are).
×
×
  • Create New...