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Top of pump diaphram is wet with fuel...

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Old 09-27-2008, 05:21 PM
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Top of pump diaphram is wet with fuel...
When you open up the pump, the top of the diaphram is wet with fuel. Is that bad, or is it normal? Any negative effects from this? I can swap the diaphram from my parts truck if needed.
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Old 09-27-2008, 05:26 PM
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i beleive this would be a sign of a leaky fuel pin. theres an article on it in the sticky
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Old 09-27-2008, 06:10 PM
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ahh Ok, I'll go check it out. I was just in the sticky today too!
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Old 09-27-2008, 07:06 PM
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On top of the diaphragm or on the bottom?
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Old 09-27-2008, 07:08 PM
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Both sides I think. Not sure. I am sure it had fuel on the top side though.
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Old 09-27-2008, 07:12 PM
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I can't think of how it would get on top unless the diaphragm itself has a tear. Fuel under the diaphragm is what Nick said. Not a huge deal unless fuel is dripping out the AFC vent.
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Old 09-27-2008, 07:14 PM
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The fuel pin is a different animal than the "ol smokey" pin, correct?
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Old 09-27-2008, 07:25 PM
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Yes, it's the little tiny pin that pops out from the front of the hole.
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