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Old 02-24-2012, 04:59 PM   #24
KIrbstermcgee
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Member#: 182273
Join Date: Jun 2008
Chapter/Region: TXIC
Location: TEXAS
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The side of the gunk that sat on the valve(underside) is crusty. That side is textured like mud. The outside that is exposed is smooth and squishy.
Im about 100% sure it a by-product of the e85 fuel. I tear into motors almost daily at work, and i dont ever see build up like this other than typical carbon deposits. There all regular gas motors. And I dont think rubber or anything in the fuel lines would be able to flow through the injectors.
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