1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Series 1 Lower Intake Manifold gasket replacement.

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Old Feb 19, 2007 | 04:38 PM
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When I rebuild M62'*, I use black RTV sealant instead of the old rubber gasket.
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Old Feb 19, 2007 | 04:50 PM
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I made a gasket out of 6 layers of thin cardboard with RTV between each layer and around the edges.
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Old Feb 20, 2007 | 12:20 AM
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Thanks for the help guys. Sealing the vacume box seemed to cure the problem.

Since I didn't end up re-pulling the SC, I think I'll give it some time before doing the lower intake gaskets.
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