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    Where's the oil coming from?

    I'm driving a 1990 GMC Sierra with a 5.7L motor. I've got oil pooling up on the top of the motor on either side of the carburetor. Where is this oil coming from? All of my efforts to solve the problem have been on the driver's side of the motor. To date, I've tried resolving the problem...
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    Water Neck Spacer Installation

    I recently installed a Water neck Spacer (https://www.meziere.com/Products/Cooling-System-Accessories/T-Stat-Spacers/Chevy-Mopar/Spacer-Water-Neck-Ported-3-8-NPT-fits-Chevy-and-BB-Mopar.aspx) on my 90 GMC Sierra as part of an electric fan upgrade. The spacer has an O-ring seal on the bottom...
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