---------------------------------------------------------- LycomingEngines-List Digest Archive --- Total Messages Posted Tue 09/28/10: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:50 PM - Sealant for hole plugs (Ralph E. Capen) 2. 03:36 PM - Re: Sealant for hole plugs (FLYaDIVE) 3. 04:52 PM - Re: Sealant for hole plugs (Ralph E. Capen) ________________________________ Message 1 _____________________________________ Time: 02:50:29 PM PST US From: "Ralph E. Capen" Subject: LycomingEngines-List: Sealant for hole plugs I'm looking to re-seal the injector/primer hole plugs in the underside of my cylinder heads. The injector nozzles in the top are supposed to be installed with anti-sieze and torqued to 40-60 inch-pounds. I'm thinking the 40-60 inch-pounds would be consistent and either anti-seize or Loc-Tite 565 (white) would be used on the plugs. These are 1/8" NPT tapered fittings if I recall correctly. Your thoughts please, Ralph Capen ________________________________ Message 2 _____________________________________ Time: 03:36:39 PM PST US Subject: Re: LycomingEngines-List: Sealant for hole plugs From: FLYaDIVE HMMmmmmmm ... Where does the 40 - 60 in/lbs come from? If it is just for 1/8" NPT then ANY thing on the threads will act as a lubricant and you will actually be going over the 40 - 60 in/lbs. Is it a number given WITH the anti-seize? Bottom line - Pipe threads are totally different than straight threads. Just snug it up and go 1/4 turn further and you are done. AND... The plug has a Allen socket... Did you do your math for the length of the Allen Wrench? Do you really think Lycoming uses a torque wrench for this! Barry On Tue, Sep 28, 2010 at 5:47 PM, Ralph E. Capen wrote: > recapen@earthlink.net> > > I'm looking to re-seal the injector/primer hole plugs in the underside of > my cylinder heads. > > The injector nozzles in the top are supposed to be installed with > anti-sieze and torqued to 40-60 inch-pounds. > > I'm thinking the 40-60 inch-pounds would be consistent and either > anti-seize or Loc-Tite 565 (white) would be used on the plugs. These are > 1/8" NPT tapered fittings if I recall correctly. > > Your thoughts please, > Ralph Capen > > ________________________________ Message 3 _____________________________________ Time: 04:52:43 PM PST US From: "Ralph E. Capen" Subject: Re: LycomingEngines-List: Sealant for hole plugs Thanks for the response..... That number came from my fuel injection system manufacturer and they also specified anti-seize. I'll look up the spec in my lycoming manuals and see if it is different - you may be right with snug + 1/4 turn. I have an allen socket that adapts to 1/4" drive - no additional math for the torque wrench. But I still don't know whether to use anti-seize or 565..... ----- Original Message ----- From: FLYaDIVE To: lycomingengines-list@matronics.com Sent: Tuesday, September 28, 2010 6:33 PM Subject: Re: LycomingEngines-List: Sealant for hole plugs HMMmmmmmm ... Where does the 40 - 60 in/lbs come from? If it is just for 1/8" NPT then ANY thing on the threads will act as a lubricant and you will actually be going over the 40 - 60 in/lbs. Is it a number given WITH the anti-seize? Bottom line - Pipe threads are totally different than straight threads. Just snug it up and go 1/4 turn further and you are done. AND... The plug has a Allen socket... Did you do your math for the length of the Allen Wrench? Do you really think Lycoming uses a torque wrench for this! Barry On Tue, Sep 28, 2010 at 5:47 PM, Ralph E. Capen wrote: I'm looking to re-seal the injector/primer hole plugs in the underside of my cylinder heads. The injector nozzles in the top are supposed to be installed with anti-sieze and torqued to 40-60 inch-pounds. I'm thinking the 40-60 inch-pounds would be consistent and either anti-seize or Loc-Tite 565 (white) would be used on the plugs. These are 1/8" NPT tapered fittings if I recall correctly. Your thoughts please, Ralph Capen ========== nes-List" target="_blank">http://www.matronics.com/Navigator?LycomingEngines-List ========== http://forums.matronics.com ========== le, List Admin. ="_blank">http://www.matronics.com/contribution ========== ------------------------------------------------------------------------------------- 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.