About to ask a stupid question while sounding stupid - Ford Powerstroke Diesel Forum
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post #1 of 19 Old 05-05-2016, 06:56 PM Thread Starter
Stupidity pisses me off

 
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About to ask a stupid question while sounding stupid

Ok,
I'm very mechanical BUT I've been so busy I haven't had time to properly diagnose my problem. My problem is, I have diesel fuel smell coming from the engine compartment (shocking I know) so I looked for maybe a total of 30 seconds, and saw "something" up front on the driver side look wet. I didn't take time to research what this "something" is, just took a quick look, and WHAM! closed the hood. Any common problems that cause diesel leak in this area? It's not coming from the fuel filter bowl.
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You are not right man, but i still think your funny as hell!
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post #2 of 19 Old 05-05-2016, 06:58 PM
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How do we know that "something wet" is in fact diesel?


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post #3 of 19 Old 05-05-2016, 07:02 PM Thread Starter
Stupidity pisses me off

 
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How do we know that "something wet" is in fact diesel?


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i tasted it, and it tastes like communist california diesel fuel

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post #4 of 19 Old 05-05-2016, 07:04 PM
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i tasted it, and it tastes like communist california diesel fuel


Ah... I see...if your smart enough to come up with that answer, then you shouldn't be asking a "stupid" question on the forum.
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post #5 of 19 Old 05-05-2016, 07:30 PM
'consent of the governed'


 
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Ah... I see...if your smart enough to come up with that answer, then you shouldn't be asking a "stupid" question on the forum.
How long have you been here? P.S. It's 'you're'. If you want to smack down, tighten it up. And as far as stupid questions on this forum, this isn't even in the top ten thousand.
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post #6 of 19 Old 05-05-2016, 07:31 PM Thread Starter
Stupidity pisses me off

 
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Ah... I see...if your smart enough to come up with that answer, then you shouldn't be asking a "stupid" question on the forum.
I don't have the time, I didn't say I didn't have the ability. Just wondering if there was a common failure.
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You are not right man, but i still think your funny as hell!
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post #7 of 19 Old 05-05-2016, 07:32 PM
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I love this thread already
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So says the internet... ...and so it shall be.
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OK, thanks for the info. To show my ignorance, what is the problem with 3 nipples...
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post #8 of 19 Old 05-05-2016, 08:55 PM
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It sounds like stress corrosion cracking of the extruded diesel transport material. Thankfully, it's not that hard to check.

The use of ultra-low sulfur diesel (ULSD) fuels has raised corrosion concerns in the engine manufacturing, fuel storage and regulatory communities because ULSD is thought to be more corrosive than diesel fuels containing higher amounts of sulfur. Microbiologically induced stress corrosion cracking (MIC) is also a potential problem in all fuel systems, since fuel systems provide a readily available food source to microorganisms, including bacteria and fungi. Your best bet is to investigate the compositional effects that lead to stress corrosion cracking.

Your first step is to get a sample of the fluid. Wiping it up with your finger is fine. Transfer it to a piece of toilet paper quickly, though. Then, use a mixture of hydrogen peroxide, lighter fluid, and whipped mayonnaise (1/3-1/3-1/3) to establish the trace sulfur content, density, and water separation characteristics (the instructions are on the back of most containers of mayonnaise – not the generic crap!). You should also estimate the Rancimat storage stability and interfacial tension – although that's not as easy. Get some rice vinegar for that.

If you can get a second sample and subject it to some temperature cycling (in your microwave), you could then assess the mass loss according to ASTM D1654. Depending on the water content of the mixture, electrochemical impedance of direct corrosion rate and electrochemical potential can be measured. Accelerated exposure tests according to NACE TM0172-2001 can also be performed. This should indicate the relative corrosiveness of the fuel.

Next – to assess the physical condition of the extruded diesel transport material – it'd be really good if you could get your hands on a scanning electron microscope. Your local university should have one. If not, auger electron spectroscopy, infrared spectroscopy or ion chromatography would do a fine job of identifying the type and extent of corrosion damage.

Between the fuel analysis and the extruded diesel transport material analysis, you should have a pretty darned good idea whether stress corrosion cracking is the problem. Good luck.

Edited to add...
Sometimes extruded diesel transport material is call fuel line. I'm not sure why.
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post #9 of 19 Old 05-05-2016, 09:06 PM Thread Starter
Stupidity pisses me off

 
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Quote:
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How long have you been here? P.S. It's 'you're'. If you want to smack down, tighten it up. And as far as stupid questions on this forum, this isn't even in the top ten thousand.
RIGHT! Plus, if you want to "smack down" ol' sevenmalards isn't the one. I've been on here ten years cupcake, and have done more work, repairs, mods, deletes on my rigs than you have dreamed of or watched on TV. I'm literally too busy right now to take the time to diagnose the issue myself, and as always turned to the OG's on the ORG for help.
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You are not right man, but i still think your funny as hell!
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post #10 of 19 Old 05-05-2016, 09:10 PM
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Wait. You're serious?

Ummm... can you snap a pic?

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