Return-Path: <13brv3@bellsouth.net> Received: from imf20aec.mail.bellsouth.net ([205.152.59.68] verified) by logan.com (CommuniGate Pro SMTP 4.3c3) with ESMTP id 811434 for flyrotary@lancaironline.net; Sat, 19 Mar 2005 12:16:47 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.68; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf20aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050319171602.BQCT14689.imf20aec.mail.bellsouth.net@rd> for ; Sat, 19 Mar 2005 12:16:02 -0500 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] FD coolant level sensor? Date: Sat, 19 Mar 2005 11:14:22 -0600 Message-ID: <000901c52ca7$17e102b0$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000A_01C52C74.CD4692B0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 This is a multi-part message in MIME format. ------=_NextPart_000_000A_01C52C74.CD4692B0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable The 2nd gen car that's dead in my hangar is dead because I got dependent on the 'raise the dead' buzzer that went off when the sensor *in the overflow tank* sensed low coolant. When the upper tank on the radiator cracked & lost coolant while driving, the overflow tank still had plenty in it & I never got the buzzer. Good point, but I'm ahead of you on this. My hope is to get an = expansion tank mounted high enough to be a gravity feed into the engine. =20 This brings up a potentially significant point. Most folks say to use system pressure to detect leaks.=20 That was my plan before, but since I'm using Evan's NGR-R, I plan to run = a zero pressure system. I figure this will slow the loss if a leak should develop. =20 I'm waaaaay late heading to the hanger, but I just thought about an old aluminum air/oil separator that I have at the hanger. I'm thinking it = might make a good expansion tank/sensor vessel. Made a note to dig it up and = look at it. =20 I'm off. Rusty =20 ------=_NextPart_000_000A_01C52C74.CD4692B0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

The 2nd gen car that's dead in my hangar is dead = because I got=20 dependent
on the 'raise the dead' buzzer that went off when the = sensor *in=20 the
overflow tank* sensed low coolant. When the upper tank on the=20 radiator
cracked & lost coolant while driving, the overflow tank = still=20 had plenty
in it & I never got the buzzer.

Good = point, but=20 I'm ahead of you on this.  My hope is to get an expansion tank = mounted=20 high enough to be a gravity feed into the engine. 

This brings up a potentially significant point. Most folks say to=20 use
system pressure to detect leaks.

That was my plan before, = but since I'm=20 using Evan's NGR-R, I plan to run a zero pressure system.  I figure = this=20 will slow the loss if a leak should develop. 

I'm waaaaay late heading = to the hanger,=20 but I just thought about an old aluminum air/oil separator that I have = at the=20 hanger.  I'm thinking it might make a good expansion tank/sensor=20 vessel.  Made a note to dig it up and look at it. 

I'm off.

Rusty

 

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