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Intake Manifold Vacuum Leak(s)

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Fluffy73 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Fluffy73 Quote  Post ReplyReply Direct Link To This Post Posted: Jan/22/2019 at 5:53pm
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.
I am genetically incapable of being Politically Correct.
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Red20 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Red20 Quote  Post ReplyReply Direct Link To This Post Posted: Jan/22/2019 at 6:56pm
Originally posted by Fluffy73 Fluffy73 wrote:

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.

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.  
1969 Javelin SST "Screamin' Banana" - Totaled Feb 2018
1973 Hornet Sportabout X "yellajack" - 360/727/TracLoc DAILY DRIVER
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PHAT69AMX View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote PHAT69AMX Quote  Post ReplyReply Direct Link To This Post Posted: Jan/22/2019 at 9:17pm
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 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Red20 Quote  Post ReplyReply Direct Link To This Post Posted: Jan/23/2019 at 3:05am
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.  
1969 Javelin SST "Screamin' Banana" - Totaled Feb 2018
1973 Hornet Sportabout X "yellajack" - 360/727/TracLoc DAILY DRIVER
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