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Old 02-19-2012, 10:56 AM
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stripped intake manifold bolt hole 351w

I just installed the intake from replacing gaskets and when I went to torque it down (Torque spec 19-25 ftlbs) I started at 15 an do 3 stages 15-19-23 well at my first stage 15ft lbs I felt my front driver side bolt get tight then loose so I do know that it stripped it. Should I let my RTV sealent harden up then tap for a slightly larger bolt??? Easiest way?? I just was not sure if i drill and tap it with the manifol installed if metal shavings would get into the engine.... I dont think they would while I sit here and imagine what it looked like under there but I could use some friendly advice.. Thanks!

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Old 02-19-2012, 11:08 AM
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You should be able to drill it and tap it with out removing it. Just put some grease on the drill bit and around the hole and on the tap. The shavings will stick to them.
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