High Temp RTV Sealant (Gasket in a Tube) question - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 07-29-2006, 04:41 PM   #1
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Default High Temp RTV Sealant (Gasket in a Tube) question

I'm just wondering if anyone uses High Temp RTV as extra insurance on the Lower Intake gaskets to prevent against leaks ?
I know you have to use it on the rubber end gaskets, but I'm thinking about using it on the thick plastic gaskets around the ports. I don't know if I trust that cheesy blue rubber strip on the gasket to seal.
I was thinking of running a bead outside of the blue rubber seal (not over top of) as a second seal to prevent leaks

I'm also wondering if anyone has used High Temp RTV on the */C gasket or if its a bad idea ?

Here are some pics of the gaskets in question:






Any suggestions/advice would be great,
Thanks in Advance,
Dutch
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Old 07-29-2006, 05:22 PM   #2
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I've never used RTV on a lower intake gasket, and I've even reused those lower intake gaskets plenty of times before (I don't recommend this however), and I have yet to personally have a lower intake gasket leak due to this. Maybe I've been lucky, but I really don't think you should have any issues if you just clean the intake and head surfaces and put the gasket in there with no sealant (on the gasket part) and bolt it down.
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Old 07-29-2006, 05:35 PM   #3
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Do not use any of the gasket sealer on the Blue inlayed gasket around any of the ports... Just make sure the surfaces are super clean...

But, at the corners where the heads and block meet, squeeze a dab at all 4 corners... Take the end seals use a thin film on the top and bottom of the endseals and then install them, at this point apply another small dab to the 4 corners and set the gaskets on the heads and then install the intake... In the future this should prevent oil leaks.... I have done this to my cars and they have remained dry for years...

Good Luck

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Old 07-29-2006, 09:32 PM   #4
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Ok

What about the */C Gasket, any needed on there ?

Thanks,
Dutch
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Old 07-30-2006, 01:52 AM   #5
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No


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