My car stinks - Not any more!

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Author Topic: My car stinks - Not any more!  (Read 574 times)

Offline AussiePhil

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My car stinks - Not any more!
« on: April 30, 2020, 10:35:12 AM »
Hi,
I bought my car about four years ago, very happy with it, but it stinks of fuel.
When we got it home and parked in the two car garage on the house after about a week my wife said that car stinks.

I just put it down as an old car, vented petrol cap, unleaded fuel.
I went over it for fuel leaks and found nothing, checked out the rubber on the fuel cap.

The car has been fitted with a later model EFI engine and runs two braided lines from the tank to the engine, etc, about 8 metres of hose!

About week ago I was going to ask the forum about their cars.

One question I was going to ask, I found out for myself when I googled, does fuel permeate braided rubber hoses.
And guess what I found!

From google
Braided nitrile hose does allow fuel to permeate through. For this reason braided nitrile hose must only be used on the exterior of vehicle and never inside the cabin. Use this hose and you will have the smell of fuel around the vehicle.
The best solution is a material called PTFE. That stands for polytetrafluoroethylene—a plastic material that is best known as Teflon in one specific variation. This material is impervious to the degenerative effects of fuel that also creates a vapor barrier so fuel vapors cannot leak past.

Those hoses were fitted to the car when I purchased it but I've done considerable hose work on it since so I  purchased braided nitrile hoses as they are sold as fuel hose!

Is it a problem you have and why do they sell nitrite hose as fuel hose, other than cost!
If it's a short length of hose I take would a small amount of smell!

So as a result I'm replacing all hoses with braided PTFE hoses as hard piping would be almost impossible routed in the way they are!

Am I on the right track!

Cheers Phil.
« Last Edit: June 28, 2020, 02:11:34 PM by AussiePhil »
If you've never buggered anything you've never done anything!
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Online USA066

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Re: My car stinks
« Reply #1 on: April 30, 2020, 11:30:54 AM »
Pirtek sell fuel injection hose, and I believe they will customise it for you. May be worth contacting them. I did consider it for my car, but stuck with the hard pipe instead.
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Offline Dwayne

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Re: My car stinks
« Reply #2 on: April 30, 2020, 12:01:12 PM »
Venting the tank into a charcoal canister (like modern cars) will also help.

Offline 188 LVU

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Re: My car stinks
« Reply #3 on: April 30, 2020, 01:31:04 PM »

Warning - be very careful not to kink the PTFE lined hose.  This tube has no "memory " like rubber hose or tubing.  If it gets kinked, it stays kinked.  And it ain't cheap.  If you have 8 meters you're in for a fair number of $.  Find out what size you need going by the inside diameter then shop around the hose places.  One is mentioned above.  Also check for the end fittings - they are a special type for this hose, not just push in and worm drive clamp.  The supplier should be able to offer you complete assemblies, made up and pressure tested.

Do your homework.
Have fun.
PKJ

Offline AussiePhil

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Re: My car stinks
« Reply #4 on: May 01, 2020, 10:34:27 AM »
Hi,
Yes, I am quite aware of minimum bend radius and kinking, the trick is to use a pipe spring where you're bending teflon, aluminium tube and copper pipe etc.
But with teflon you will only get a few degrees more arc.
As it is I don't have any tight bends to worry about.
Thanks for your warning and advice.
The ends will be right, I'm using proflow series 200 hose and ends.
Cheers Phil.

If you've never buggered anything you've never done anything!
But if you've buggered a lot maybe you're not very good at it!

Offline AussiePhil

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Re: My car stinks
« Reply #5 on: May 01, 2020, 11:08:07 AM »
Thanks Dwayne,
I've searched for charcoal canisters and found a Landcruiser 75 canister that doesn't connect to emissions control.
Connect easily to the the fill pipe.
Cheers Phil.
If you've never buggered anything you've never done anything!
But if you've buggered a lot maybe you're not very good at it!

Offline AussiePhil

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Re: My car stinks
« Reply #6 on: June 28, 2020, 02:10:17 PM »
Hi all,

Six weeks ago I went over the handlebars of my dirt bike on the Bridle track near HillEnd.
I hurt myself pretty bad, the last couple of days I've been able to finish off my fuel lines.
I filled up the tank expecting I may get a few leaks not using ptfe fittings before.

No leaks, pressurised beautifully and held pressure and no more smell.

Another job well done!

Cheers Phil

If you've never buggered anything you've never done anything!
But if you've buggered a lot maybe you're not very good at it!

 

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