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Intake Manifold Vacuum Leak(s) |
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Fluffy73
AMC Addicted Joined: Nov/21/2007 Location: Castlegar, BC Status: Offline Points: 3059 |
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I chased vacuum leaks on my 360 for several years. It wasn't until somebody introduced me to "The Right Stuff"©®™ by Permatex that I solved most of my intake sealing problems.
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I am genetically incapable of being Politically Correct.
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Red20
AMC Addicted Joined: Jan/29/2013 Location: Oceanside CA Status: Offline Points: 1556 |
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Yessir, that’s what I use. Do you use it around the intake runners as well as the water jackets? I’ve always been under the impression that it could soften and deteriorate exposed to the fuel/air at the intake ports.
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1969 Javelin SST "Screamin' Banana" - Totaled Feb 2018
1973 Hornet Sportabout X "yellajack" - 360/727/TracLoc DAILY DRIVER |
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PHAT69AMX
AMC Addicted Joined: Jul/07/2007 Location: West Virginia Status: Offline Points: 5903 |
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So shouldn't someone be able to use a carpenters square to check the geomtry
of an intake to see if it is machined at 90 ? On the Block between the heads to check 90 the Carpenters Square won't work though, right?
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Red20
AMC Addicted Joined: Jan/29/2013 Location: Oceanside CA Status: Offline Points: 1556 |
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Looks like I’m getting it all sorted out. Much better now. It also turns out that some of my extra air was a result of dirty secondary throttle bores and a sticky shaft not allowing the secondaries to close completely at idle. This was a used throttle body and I guess I didn’t look it over closely enough. Some cleaner and working it back and forth for a while worked wonders. The ECU is maintaining my 750 RPM target idle speed now.
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1969 Javelin SST "Screamin' Banana" - Totaled Feb 2018
1973 Hornet Sportabout X "yellajack" - 360/727/TracLoc DAILY DRIVER |
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