X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 30 [X] Return-Path: Received: from access.aic-fl.com ([207.30.253.2] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTP id 1982645 for flyrotary@lancaironline.net; Thu, 12 Apr 2007 23:48:45 -0400 Received-SPF: softfail receiver=logan.com; client-ip=207.30.253.2; envelope-from=unicorn@gdsys.net Received: from main (unverified [207.30.255.28]) by access.aic-fl.com (Rockliffe SMTPRA 4.5.6) with SMTP id for ; Thu, 12 Apr 2007 22:44:42 -0500 Message-ID: <000401c77d87$00570b70$1cff1ecf@main> From: "Richard Sohn" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Coolant Level Probe - Will it work Date: Thu, 12 Apr 2007 23:48:32 -0500 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 In principle yes, however, with the cooling fluid having a variable resistance, possibly up to k-ohms, it takes a little more. The RX7 has a box in the instrument panel to drive the buzzer and a indicator light. I don't know what is in the box. You would need some sort of amplifier circuit to drive a relay for showing the signal. I personally would not mess with it. Mainly based on my expirience with the SOOB, if your system is built right, there is no coolant level problem that will not be found in a preflight. Cars don't have that. In over six years of flying, I never had to add coolant when checking before a flight, and the instruments, temperature and pressure, will give you the information you need in flight. Just my opinion. Richard Sohn N2071U ----- Original Message ----- From: "Dennis Haverlah" To: "Rotary motors in aircraft" Sent: Thursday, April 12, 2007 9:41 AM Subject: [FlyRotary] Re: Coolant Level Probe - Will it work > Great - Thanks Richard - Do you know if it just is normally open and > grounds to turn on the light? I may have one hers somewhere. > > Dennis H. > > Richard Sohn wrote: > >> >> ----- Original Message ----- From: "Dennis Haverlah" >> >> To: "Rotary motors in aircraft" >> Sent: Thursday, April 12, 2007 8:34 AM >> Subject: [FlyRotary] Coolant Level Probe - Will it work >> >> >> I guess I could give up and just watch the >> >>> coolant pressure for clues. >>> >>> Thanks, >>> Dennis H. >>> >> > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.5.446 / Virus Database: 269.3.0/758 - Release Date: 4/12/2007 > 11:52 AM > >