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Thread: Fuel Tank Leak?

  1. #21
    Senior Member PapuaPilot's Avatar
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    Default Re: Fuel Tank Leak?

    Here is a picture

    Phil Nelson
    A&P-IA, Maintenance Instructor
    KF 5 Outback, Cont. IO-240
    Flying since 2016

  2. #22
    Senior Member JoeRuscito's Avatar
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    Default Re: Fuel Tank Leak?

    This blue stuff needs to go.... used the same stuff on my brake fittings and now those are leaking.

    I think Im going to redo every fitting on the plane with the re branded 9AR stuff "Permatex 9AR was re-branded Permatex Tack & Seal Gasket Sealant Item # 80938"

    So any ideas on good ways to clean the blue stuff off. It leaves quite the mess?

  3. #23
    Senior Member efwd's Avatar
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    Default Re: Fuel Tank Leak?

    MEK. My brake line fittings wouldn't seal with the blue stuff either. Fuel Lube that I bought at AS&S worked.
    Eddie Forward
    Flying
    SS7, 912iS, Garmin G3X

  4. #24
    Senior Member bbs428's Avatar
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    Default Re: Fuel Tank Leak?

    EZ Turn is the sealant I have been using.

    "A specialty lubricant/sealant used for fuel and oil line valves & is resistant to high temps.
    Especially effective where high octane fuels and aromatics are present. EZ Turn is also extremely efficient as a gasket paste & anti-seize agent. EZ Turn will not gum, crack or dry out. Each shipment is independently tested. Excellent for tapered plug valves, aircraft engine manufacturing, and marine applications."

    E-Z Turn Specification Sheet:SAE-AMS-G-6032MIL-G-6032D Am I Type I

    Dropping Point 9126.7°C min.) >600°F ASTM D-2265
    Unworked Penetration 260 ASTM D-1403
    Worked Penetration 220 ASTM D-1403NLGI Number 3 NLGI
    Consistency Soft VisualColor Cream Visual
    Resistance to Aqueous Solutions - Distilled Water Pass; no deterioration FTM-5415
    Resistance to Aqueous Solutions - Ethanol:Water50:50 mixPass; no deterioration
    FTM-5415Resistance to Fuel/Appearance Pass
    FTM-5414Fuel Solubility (20% max.) 1.11%
    FTM-5414Water Spray Off 2.33% ASTM D-4049
    Water Washout at 175°F (Bearing Dried at 77°C) 6.63% ASTM D-1264
    Load Wear Index 74.09 ASTM D-2596
    Load Wear Index (Last Non-Seizure [Scar]) 160kg (0.48 mm) ASTM D-2596
    Load Wear Index (Last Seizure [scar]) 200 kg (0.71 mm) ASTM D-2596
    Load Wear Index (Weld Load) 250 kg ASTM D-2596
    Copper Corrosion (#1b max.) Shiny 1b FTM-5309
    Film Stability and Corrosion on Steel Pass; no corrosion ¶4.6.3
    Roll Stability - Original Penetration 271 ASTM D-1831
    Roll Stability - After Rolling Penetration 275 ASTM D-1831
    Roll Stability - Change in Penetration +4 ASTM D-1831
    Roll Stability - Percent Change +1.48% ASTM D-1831
    EMCOR Rust Test, Bearing A #4 ASTM D-6138
    EMCOR Rust Test, Bearing B #5 ASTM D-6138
    Dielectric Strength 112 volts/mil ASTM D-149
    Breakdown Voltage 5,597 volts ASTM D-149
    Dissipation Factor @ 1 kHz/73°F/50%R.H. 0.0782 ASTM D-150
    Dielectric Constant 5.95 ASTM D-150
    Low Temperature Torque at 0° F - Starting Torque 55,250 g-cm ASTM D-1478
    Low Temperature Torque at 0° F - 1 Hour Run

    Passed all the leak down tests. I did tighten my fittings down very well. I used the same procedure as Jiott and others. I will do the test again before covering and consider the Banjo fittings. Thanks for the heads up.


    ezturnlube.jpg
    Somebody said that carrier pilots were the best in the world, and they must be or there wouldn't be any of them left alive. — Ernie Pyle

    Brett Butler
    Flying: 1998 Model 5 Outback, 912ul Zipper 110hp, G3x avionics, ss7 upgrades

  5. #25
    Senior Member efwd's Avatar
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    Default Re: Fuel Tank Leak?

    Yeah, that's the stuff I thought was called Fuel Lube. That is what pops up when you put Fuel Lube in the search box on AS&S site. It works great for sticking washers to the nut when you cant keep the washer in place long enough to get a nut on the bolt. You know, those really tight spots.
    Eddie Forward
    Flying
    SS7, 912iS, Garmin G3X

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