Subject	Here:
Posted by	Summeronthechain (MN) on October 14, 2012 at 10:12 AM
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In Reply To	I've never understood why people say only 5 psi.... posted by Supermario680 (WI) on October 14, 2012 at 06:16 AM
Message	Per Ash: DO NOT EXCEED 5PSI DURING A BOOST LEAK TEST! The reason I only have the intake system at 5psi and no more is because of the fact that 1/4" of the intake system is not subjected to positive pressure. None of the non-turbo intake system is under pressure. In addition, since the intake system is also part of the PCV system (positive crankcase ventilation), you do not want to overpressurize the crankcase for fear of blowing out the oil seals along the camshafts and crankshaft. 5psi is enough to hear any leaks and not too much to blowout seals. Once you have the system pressurized, you will be able to easily locate any boost leaks. Typically it only involves tightening the loose hose clamps that hold the system together. Locate all leaks and fix them.
Follow Ups	Would leaking TB seals cause failing boost leak test? - smartone 21:48:16 10/13/12 Re: Would leaking TB seals cause failing boost leak test? - ZBOOSTT 00:48:06 10/14/12 Re: Re: Would leaking TB seals cause failing boost leak test? - smartone 01:14:25 10/14/12 I've never understood why people say only 5 psi.... - Supermario680 (WI) 06:16:49 10/14/12 I am thinking the gauge is broken but not 100% sure yet.. (n/m) - smartone 09:53:14 10/14/12 Here: - Summeronthechain (MN) 10:12:00 10/14/12 Find a way to verify that gauge is working first. - Evan_Wright (Ca) 10:00:08 10/14/12 Also, a leak at the tb shaft should be fixed if possible but - Evan_Wright (Ca) 10:02:46 10/14/12
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