1992 upper intake manifold gasket - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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.

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Old 04-15-2008, 01:38 AM   #1
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Default 1992 upper intake manifold gasket

I can't find a upper intake manifold gasket for my 1992 Bonneville SE. It will take two to three days for dealer to order. I was wondering if I could use Permatex Orange to do the job? [b]OR I also have a large sheet of Felpro Karropak Gasket Material so that I could use to make a gasket if necessary? This material is 1/32"paper material that I could cover with Permatex Aircraft Grade liquid gasket sealer. Your thoughts appreciated
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Old 04-15-2008, 07:52 AM   #2
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i have only taken apart 3 different L27s. and all 3 had no UIM gasket. just the two o-rings near the tb side of the LIM.
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Old 04-18-2008, 12:30 AM   #3
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Default gasket for uim to lim 1992 bonneville

I think I will go with Permatex Hardening Gasket Maker to seal the uim to the lim and also new O-rings for the water ports. Any input appreciated!!
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Old 04-18-2008, 09:06 AM   #4
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Don't use hardening. Use a flexible sealant.
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Old 04-19-2008, 07:02 AM   #5
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Default UIM 1992 Bonneville

Thanks a bunch!! I have not gotten to putting on the UIM yet. Had the wonderful experience of breaking a bolt on the lower and its taken me longer to get that fixed!!!
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