---------------------------------------------------------- LycomingEngines-List Digest Archive --- Total Messages Posted Tue 05/27/14: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 10:39 AM - Induction leaks where and how did you find them (Ralph E. Capen) 2. 10:54 AM - Re: Induction leaks where and how did you find them (Barrett) 3. 10:59 AM - Re: Induction leaks where and how did you find them (Carl Froehlich) 4. 11:39 AM - Re: Induction leaks where and how did you find them (Ralph E. Capen) ________________________________ Message 1 _____________________________________ Time: 10:39:54 AM PST US From: "Ralph E. Capen" Subject: LycomingEngines-List: Induction leaks where and how did you find them Folks, I'm still chasing a small induction leak impacting only my #1 cylinder. I'm trying to list all of the potential places and methods of testing. Places so far: Upper injection port fitting or plug Injection fitting assembly Lower injection port fitting or plug Intake runner in sump Intake runner connecting hose Intake runner pipe Intake runner gasket at cylinder head Valve cover gasket Rocker arm oil drain fitting at engine case Rocker arm oil drain fitting connection hose Rocker arm oil drain fitting at cylinder head (last four most likely with loose intake valve guide as a leak path contributor) Testing methods so far: Tighten worm clamp screws Replace gasket Replace hose Spraying water on suspected area with engine running (DANGER WILL ROBINSON!) Where have you found them and how have you found them? Thanks, Ralph Capen RV6A N822AR "Patience" @ N06 with 210 hrs on IO360B1F6 with AFP Injection ________________________________ Message 2 _____________________________________ Time: 10:54:45 AM PST US From: "Barrett" Subject: RE: LycomingEngines-List: Induction leaks where and how did you find them Blow smoke. -----Original Message----- From: owner-lycomingengines-list-server@matronics.com [mailto:owner-lycomingengines-list-server@matronics.com] On Behalf Of Ralph E. Capen Sent: Tuesday, May 27, 2014 11:39 AM Subject: LycomingEngines-List: Induction leaks where and how did you find them --> Folks, I'm still chasing a small induction leak impacting only my #1 cylinder. I'm trying to list all of the potential places and methods of testing. Places so far: Upper injection port fitting or plug Injection fitting assembly Lower injection port fitting or plug Intake runner in sump Intake runner connecting hose Intake runner pipe Intake runner gasket at cylinder head Valve cover gasket Rocker arm oil drain fitting at engine case Rocker arm oil drain fitting connection hose Rocker arm oil drain fitting at cylinder head (last four most likely with loose intake valve guide as a leak path contributor) Testing methods so far: Tighten worm clamp screws Replace gasket Replace hose Spraying water on suspected area with engine running (DANGER WILL ROBINSON!) Where have you found them and how have you found them? Thanks, Ralph Capen RV6A N822AR "Patience" @ N06 with 210 hrs on IO360B1F6 with AFP Injection ________________________________ Message 3 _____________________________________ Time: 10:59:35 AM PST US From: "Carl Froehlich" Subject: RE: LycomingEngines-List: Induction leaks where and how did you find them Ralph, What makes you think you have an induction leak? Carl -----Original Message----- From: owner-lycomingengines-list-server@matronics.com [mailto:owner-lycomingengines-list-server@matronics.com] On Behalf Of Ralph E. Capen Sent: Tuesday, May 27, 2014 1:39 PM Subject: LycomingEngines-List: Induction leaks where and how did you find them --> Folks, I'm still chasing a small induction leak impacting only my #1 cylinder. I'm trying to list all of the potential places and methods of testing. Places so far: Upper injection port fitting or plug Injection fitting assembly Lower injection port fitting or plug Intake runner in sump Intake runner connecting hose Intake runner pipe Intake runner gasket at cylinder head Valve cover gasket Rocker arm oil drain fitting at engine case Rocker arm oil drain fitting connection hose Rocker arm oil drain fitting at cylinder head (last four most likely with loose intake valve guide as a leak path contributor) Testing methods so far: Tighten worm clamp screws Replace gasket Replace hose Spraying water on suspected area with engine running (DANGER WILL ROBINSON!) Where have you found them and how have you found them? Thanks, Ralph Capen RV6A N822AR "Patience" @ N06 with 210 hrs on IO360B1F6 with AFP Injection ________________________________ Message 4 _____________________________________ Time: 11:39:49 AM PST US From: "Ralph E. Capen" Subject: RE: LycomingEngines-List: Induction leaks where and how did you find them Carl, Good question - I ran a bunch of tests as I am trying to flow balance my fuel injection system. One of the tests was to run at different manifold pressures 25" and 15" and look for a consistent temp change across all cylinders....my #1 didn't change like the others...the remaining text points to a leak in the inconsistent cylinder. The temps are well below the danger zone - but you can easily see the difference in the graphs between high and low power settings. Ralph -----Original Message----- >From: Carl Froehlich >Sent: May 27, 2014 1:59 PM >To: lycomingengines-list@matronics.com >Subject: RE: LycomingEngines-List: Induction leaks where and how did you find them > > >Ralph, > >What makes you think you have an induction leak? > >Carl > >-----Original Message----- >From: owner-lycomingengines-list-server@matronics.com >[mailto:owner-lycomingengines-list-server@matronics.com] On Behalf Of Ralph >E. Capen >Sent: Tuesday, May 27, 2014 1:39 PM >To: rv-list; lycoming engine list >Subject: LycomingEngines-List: Induction leaks where and how did you find >them > >--> > >Folks, > >I'm still chasing a small induction leak impacting only my #1 cylinder. >I'm trying to list all of the potential places and methods of testing. > >Places so far: > >Upper injection port fitting or plug >Injection fitting assembly >Lower injection port fitting or plug >Intake runner in sump >Intake runner connecting hose >Intake runner pipe >Intake runner gasket at cylinder head >Valve cover gasket >Rocker arm oil drain fitting at engine case Rocker arm oil drain fitting >connection hose Rocker arm oil drain fitting at cylinder head (last four >most likely with loose intake valve guide as a leak path contributor) > >Testing methods so far: >Tighten worm clamp screws >Replace gasket >Replace hose >Spraying water on suspected area with engine running (DANGER WILL ROBINSON!) > >Where have you found them and how have you found them? > >Thanks, >Ralph Capen >RV6A N822AR "Patience" @ N06 with 210 hrs on IO360B1F6 with AFP Injection > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message lycomingengines-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/LycomingEngines-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/lycomingengines-list Browse Digests http://www.matronics.com/digest/lycomingengines-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.