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Old 07-31-2020, 10:03 AM   #18
Bob Bidonde
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Join Date: May 2010
Location: Long Island, NY
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Default Re: Manifold Gland Rings

The original purpose of the gland rings, that are used only in the exhaust ports, is to prevent burnout of the manifold gaskets. The rings expand, so they need to have 1/16th gap when installed. If no gap, the rings will buckle and windup in the ports.
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