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Return-Path: <13brv3@bellsouth.net> Received: from imf22aec.mail.bellsouth.net ([205.152.59.70] verified) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 2921271 for flyrotary@lancaironline.net; Wed, 07 Jan 2004 11:15:00 -0500 Received: from rad ([68.155.99.73]) by imf22aec.mail.bellsouth.net (InterMail vM.5.01.06.05 201-253-122-130-105-20030824) with ESMTP id <20040107161459.KCMF1951.imf22aec.mail.bellsouth.net@rad> for ; Wed, 7 Jan 2004 11:14:59 -0500 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: evap core air pockets? Date: Wed, 7 Jan 2004 10:15:02 -0600 Message-ID: <000001c3d539$67a95a70$6001a8c0@rad> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C3D507.1D0EEA70" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C3D507.1D0EEA70 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Fill up the system with as much coolant as it will hold (this will leave = air trapped as I mentioned - but not to dispare) - fire up the engine and = let idle with the radiator cap off. Let it run for 1 to 1 1/2 minutes, = then shut it down. You will find that the system will now take more coolant. = Do this a couple or three times never running it for over tw0 minutes at a = time and refilling the system each time. =20 =20 Thanks for the procedure Ed. I had figured this would be one of the = times that the EWP would come in handy, since you can circulate water without running the engine. Since the water won't be heating, and expanding, I should be able to run it until all the bubbles are worked out of the = system. Still hard to believe air will flow downhill to get out of the evap = cores though. =20 =20 I don't have much clearance over the top of the cores, so I don't think = I could install anything permanent, but perhaps I could weld a small 1/2" = x 1/2" x 1/8" plate to the top of the tank on each core. I could then = drill and tap a 1/8" NPT hole, and put a small plug in it after the system was filled. Now that I think about it, that might be the high point of my system on the ground, so I might even be able to top off the system = through those holes. Just too many decisions... =20 Rusty (hoping I can make it to the hanger to scope out my new intake- = thanks David) =20 ------=_NextPart_000_0001_01C3D507.1D0EEA70 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

Fill up the=20 system with as much coolant as it will hold (this will leave air trapped = as I=20 mentioned - but not to dispare) - fire up the engine and let idle = with the=20 radiator cap off. Let it run for 1 to = 1 1/2 minutes,=20 then shut it down. You will find that the system will now take = more=20 coolant. Do this a couple or three times never running it for over = tw0=20 minutes at a time and refilling the system each time.

Thanks for the = procedure Ed. I had figured this would be one of = the times=20 that the EWP would come in handy, since you can circulate water without = running=20 the engine. Since the water won't be heating, and = expanding, I should=20 be able to run it until all the bubbles are worked out of the = system. =20 Still hard to believe air will flow downhill to get out of the evap = cores=20 though.

I don't have=20 much clearance over the top of the cores, so I don't think I = could=20 install anything permanent, but perhaps I could weld a small 1/2" x = 1/2" x=20 1/8" plate to the top of the tank on each core. I could then = drill=20 and tap a 1/8" NPT hole, and put a small plug in it after = the=20 system was filled. Now that I think about it, that might be = the high=20 point of my system on the ground, so I might even be able to top off the = system=20 through those holes. Just too many=20 decisions...

Rusty (hoping I can=20 make it to the hanger to scope out my new intake- thanks=20 David)

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