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Okay, I ran into this problem after replacing the fuel return line to the tank on the Mitsubishi Eclipse, not a brick, but the same applies. Apparently this Advance Auto Parts supplied fuel injection rated hose shrinks in cross section over time. This means that if you use a screw based hose clamp, the hose will shrink and the clamp will not keep it tight on the fitting.
The end result is a massive fuel leak, I got lucky as the car didn't catch fire! After doing a bit of research, if you use this new "cheap as heck" fuel line, you need to use a spring clamp to keep you safe rather than a screw clamp.
jorrell
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92 245 299.3K miles, IPD'd to the hilt, 06 XC70, 00 Eclipse custom Turbo setup...currently taking names and kicking reputations!
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Hey, thanks for the heads-up on the Advance Auto fuel line hose. I was considering replacing the rubber fuel hose that goes from the top of the sending unit to the metal fuel line under the car. I recently had a catastrophic fuel system failure - due to an unethical "professional" mechanic, and I decided to just replace everything from the tank forward (k-jet fuel system). One of the items I sourced was the very rubber hose you warned about. Thanks for helping me avoid another fuel system disaster. Having now cut Advance Auto fuel hose out of the equation, does anybody have some recommendations for some fuel hose that will behave like OEM or better?
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Hello.
I use bright blue Aeroquip fuel hose with Oetiker crimp clamps.
Goatman
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Thanks for the tip, Goatman.
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Sheik,
Oetiker clamps are not only less expensive then standard screw clamps, they work better. This is because the clamping force is distributed evenly around the fitting. Because there are high velocity vibrations transmitted through the fluid medium from the high pressure roller pump, screw clamps can resonate and unload the screw causing a gradual loosening of the assembly. Since there are no moving parts in a crimp clamp, there is no opportunity for vibrations to loosen the clamp.
The Aeroquip hose is not less expensive then generic Chinese fuel hose. However, the AQP series has a nitrile component that effectively resists alcohols, in contrast to the polyamide tubing used on the original installations. This is becoming important because of the increasing ethanol content in todays motor fuel.
Aeroquip AQP Socketless 1/4 inch fuel hose
Oetiker Hose Clamp 5/16¨ OD
Goatman
P.S. Lucid, lay off dude, it’s unprofessional to attack someone else's technical opinion.
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Well, Goatman and others, I am grateful for all the outstanding help you guys offer to noobs like me. Since I am keeping my Volvo until I expire or the car gets totaled, I will eventually learn enough to be of some service around here...but...until that day arrives, pass that bottle of warm milk, will ya! LOL.
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Hello,
That always happens with screw clamps on fuel injection systems!!!
Always use crimp clamps on fuel injection hose.
Goatman
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"That always happens with screw clamps on fuel injection systems!!!"
"Always use crimp clamps on fuel injection hose."
Where do you come up with these off-the-wall pontifications?
Screw type hose clamps have been universally used on on fuel systems (including FI) for years. The smooth-backed type are preferred of course, like the screw type clamps Volvo has always used.
Oetiker clamps will do no harm, but except for racing or flying applications, they are hardly intended for the average DIY motorist.
--
Bruce Young, '93 940-NA (current), 240s (one V8), 140s, 122s, since '63.
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Unless of course it is European sourced fiber wrapped fuel line, that stuff never shrinks, just wish I could remember where I used to buy it from! Oh, wait, I got it from Bap Geon, are they still in business?
jorrell
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92 245 299.3K miles, IPD'd to the hilt, 06 XC70, 00 Eclipse custom Turbo setup...currently taking names and kicking reputations!
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Knowing what I do about boat safety (and how much more vulnerable boats are to fuel leak dangers), I always use Coast-Guard approved fuel hose and clamps (316 stainless throughout) for that extra margin of safety (it's worth a few extra dollars).
If you're worried, do the same.
Regards,
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Thanks, Ken for the tips on the clips.
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Yes, they are. Whether you can still get good quality stuff from them is an open question.
John
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