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Thread: Fuel smell - Air Vents

  1. #11
    Member madstudios's Avatar
    Join Date:  Oct 2016

    Posts:    69

    Fuel smell - Air Vents

    Quote Originally Posted by Jonathan View Post
    Could also be the seal on the fuel sender. If it isn't perfectly seated/sealed, it can come sloshing up around the edges when you're driving and then the air rushing by takes it from there into the cabin.

    A good test to see if this is happening is to gain access to the top of the fuel tank by removing everything from your trunk, including the carpet board and spare tire, and then remove the access cover that's under the spare tire. You can now see the top of the tank and fuel sender. Check to see if there is any obvious fuel wet spots first. If not, and there may not be if it has evaporated, leave everything out of the trunk just like you have it and go for a little drive around the block. While going about 10 mph or so, slam the brakes on hard and come to a complete stop (make sure your neighbour isn't driving right behind you first!). Now pull over safely and have a look at the top of the tank and fuel sender and see if it is wet. If it is, you know where your leak is. Credit to Dave S. (of course) for sharing that little trick with me a year or so ago.
    I did the test, and the fuel sender was not properly seated.

    I also made myself a hot air dam!

    I'll take the road next weekend and see how it goes.
    Thanks!


    Fernando Silotto. Sao Paulo - Brazil
    Delorean Vin 3772
    Last edited by madstudios; 02-22-2017 at 04:39 PM.

  2. #12
    Member
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    Nice! Let us know how it goes!

  3. #13
    Member
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    Location:  Patchogue

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    I just had a very similar issue. Mine turned out to be broken fuel lines. The inner tube cracked and was just held on with the dust cover. lol Thank goodness Im in driving distance from Pj Grady.


    Will

  4. #14
    Senior Member Jonathan's Avatar
    Join Date:  Jun 2011

    Location:  Ontario, Canada

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    Picking a thread with "fuel smell" in the title...

    Is there anything that comes to mind as to why one might smell fuel more so when the tank is closer to empty than to full? I'm still not 100% convinced I am smelling fuel, but over the past couple of weeks, it seems like there is a smell of fuel in the cabin. Not always and not terribly consistent. Seems like it is more noticeable when making a full turn at an intersection (so either the braking part or the momentum shift of the car from side to side). And perhaps more noticeable when the tank has less in it than soon after a fill-up.

    I've checked recently (visually) the top of the tank, sender seal, under the fuel pump boot and flexible hoses from the tank to the hardlines. No obvious signs of fuel or other wet spots.

    Just curious if anyone has an "ah-ha" idea that would lead to the smells being more evident when the tank isn't full.
    One damn minute Admiral...


  5. #15
    Young Padawan With The DeLorean kings1527's Avatar
    Join Date:  Jun 2012

    Location:  Oak Park, CA

    Posts:    893

    My VIN:    6575

    Quote Originally Posted by Jonathan View Post
    Picking a thread with "fuel smell" in the title...

    Is there anything that comes to mind as to why one might smell fuel more so when the tank is closer to empty than to full? I'm still not 100% convinced I am smelling fuel, but over the past couple of weeks, it seems like there is a smell of fuel in the cabin. Not always and not terribly consistent. Seems like it is more noticeable when making a full turn at an intersection (so either the braking part or the momentum shift of the car from side to side). And perhaps more noticeable when the tank has less in it than soon after a fill-up.

    I've checked recently (visually) the top of the tank, sender seal, under the fuel pump boot and flexible hoses from the tank to the hardlines. No obvious signs of fuel or other wet spots.

    Just curious if anyone has an "ah-ha" idea that would lead to the smells being more evident when the tank isn't full.
    I get more of a fuel smell when it's hot out and my tank is 1/2 or less. Maybe closer to 1/4. I've checked EVERYTHING...all that was mentioned previously. The one thing I'm considering are my vacuum lines that are Hervey's silicone replacements. I'm wondering if the diameter is smaller than originally designed and not able to take the vapors back to the canister "fast" enough. Have to try that someday.

    Alex Abdalla
    6575

    Late 1981, Grey 5-speed, 60k miles. Built 11/11/81

    DPNW Toby Fans, DPNW Wings-A-Loft Elite, DMCMW Fan Sequencer, R12 AC, Full LEDs, DMCH Digital Door Lock Module, DPNW Door Lock Actuators, DMCH 140A Alternator, Infinity Kappa 3.5"/5.25", JL XD700 Power Amp, Alpine CDE-HD138BT, DMC CA 8" Sub, Dave McKeen RPM Relay, DMCH Replica Carpet Set, NOS Seat Covers

    A full restoration with step-by-step "what I did" is in progress at www.delorean6575revisited.blogspot.com

  6. #16
    Senior Member
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    Location:  Tacoma, Wa

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    I just cleaned out my tank and found that the smell actually got stronger after I pumped all the gas out..no idea why.
    In fact, even after cleaning it there still seems to be fuel vapors...though that could be because I have my lines still not connected.

    I was smelling fuel before and when I pulled the pump I found that the connector on the pump itself was loose, as well as no clamp securing the pump in the boot...so those are areas that might be good to check as well if it comes up again.
    Rob Depew
    Tacoma, Wa
    '81 DeLorean 4877 Grey, Auto, 4 wheels
    The Ressurection of 4877......
    Now Accepting Donations to get her back on the road

  7. #17
    Member madstudios's Avatar
    Join Date:  Oct 2016

    Posts:    69

    Quote Originally Posted by kings1527 View Post
    I get more of a fuel smell when it's hot out and my tank is 1/2 or less. Maybe closer to 1/4. I've checked EVERYTHING...all that was mentioned previously. The one thing I'm considering are my vacuum lines that are Hervey's silicone replacements. I'm wondering if the diameter is smaller than originally designed and not able to take the vapors back to the canister "fast" enough. Have to try that someday.
    Yes, I had fuel smell when it was hot too, so I've made myself a hot air dam, just like hervey sells, to keep the tank cooler. I had no more fuel smells so far.


    Fernando Silotto. Sao Paulo - Brazil
    Delorean Vin 3772

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