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Old 02-24-2012, 03:59 PM   #24
Scooby Newbie
Member#: 182273
Join Date: Jun 2008
Chapter/Region: TXIC
Location: TEXAS

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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