LycomingEngines-List Digest Archive

Tue 08/22/06


Total Messages Posted: 3



Today's Message Index:
----------------------
 
     1. 02:52 AM - Re: Vacuum Pump Removal (Grant Piper)
     2. 05:52 AM - Re: Vacuum Pump Removal (PGLong)
     3. 02:37 PM - Re: Re: Vacuum Pump Removal (Grant Piper)
 
 
 


Message 1


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    Time: 02:52:46 AM PST US
    From: "Grant Piper" <grant.piper@bigpond.com>
    Subject: Re: Vacuum Pump Removal
    Hi Pat, What you did is right. If you remove the gear and adaptor you will need a double plate to keep oil pressure. Grant Piper RV-4 VH-PIO 250hrs ----- Original Message ----- From: PGLong@aol.com To: lycomingengines-list@matronics.com Sent: Tuesday, August 22, 2006 10:02 AM Subject: LycomingEngines-List: Vacuum Pump Removal I'm removing my vacuum system because I installed a Tru Trak ADI Pilot II. After struggling with the lower left nut, I finally got the vacuum pump off. Then, I just installed a cap and gasket in its place but I'm wondering if I should also remove the adapter and the vacuum pump driven gear and then put the cap on. What is the correct way to do this? Pat Long PGLong@aol.com N120PL RV4 Bay City, Michigan 3CM Do Not Archive


    Message 2


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    Time: 05:52:54 AM PST US
    Subject: Re: Vacuum Pump Removal
    From: "PGLong" <PGLong@aol.com>
    --> LycomingEngines-List message posted by: "PGLong" <PGLong@aol.com> Please explain why I would need a double plate to maintain oil pressure? -------- Pat Long RV-4, N120PL Bay City, MI Read this topic online here: http://forums.matronics.com/viewtopic.php?p=56317#56317


    Message 3


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    Time: 02:37:34 PM PST US
    From: "Grant Piper" <grant.piper@bigpond.com>
    Subject: Re: Vacuum Pump Removal
    --> LycomingEngines-List message posted by: "Grant Piper" <grant.piper@bigpond.com> Hi Pat, I'm thinking back to when I put an inverted oil pickup on the vac pad. I left the cast spacer on and removed the drive gear. An oil gallery for the gear came up from the bottom. I put a 0.025" plate between the cast spacer piece and the accessory case (to block the oil gallery), and then a 0.25" plate on the outside tapped to accept the AN fitting. I may have given you duff gen, if you put the blocking plate right against the acc. case and remove the cast spacer piece altogether then you won't need two plates. The mounting studs will be quite long though. I did this some time ago, but I think this is the correct version! Grant ----- Original Message ----- From: "PGLong" <PGLong@aol.com> Sent: Tuesday, August 22, 2006 10:52 PM Subject: LycomingEngines-List: Re: Vacuum Pump Removal > --> LycomingEngines-List message posted by: "PGLong" <PGLong@aol.com> > > Please explain why I would need a double plate to maintain oil pressure? > > -------- > Pat Long > RV-4, N120PL > Bay City, MI > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=56317#56317 > > >




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