Return-Path: Received: from pimout1-ext.prodigy.net ([207.115.63.77] verified) by logan.com (CommuniGate Pro SMTP 4.2b3) with ESMTP id 86187 for flyrotary@lancaironline.net; Sun, 23 May 2004 18:13:13 -0400 Received: from nrwc-sh3-port220.snet.net (nrwc-sh3-port220.snet.net [204.60.237.220]) by pimout1-ext.prodigy.net (8.12.10 milter /8.12.10) with SMTP id i4NMD4K1215320 for ; Sun, 23 May 2004 18:13:10 -0400 Received: by nrwc-sh3-port220.snet.net with Microsoft Mail id <01C440F0.E3651DC0@nrwc-sh3-port220.snet.net>; Sun, 23 May 2004 18:08:02 -0400 Message-ID: <01C440F0.E3651DC0@nrwc-sh3-port220.snet.net> From: Jim Maher To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Two problems solved, 2 more pop up... Date: Sun, 23 May 2004 18:07:56 -0400 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="---- =_NextPart_000_01C440F0.E36CBEE0" ------ =_NextPart_000_01C440F0.E36CBEE0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Dave, The RMI Tach circuit has a glitch filter which will prevent RPM readings above about 4500. On mine I changed a resistor value to allow readings up to 7500 RPM. It is a simple change. I don't have the schematic here at home so I cannot tell you how to fix it until I go to work and review what I did. I will send you the fix tomorrow. Jim Maher -----Original Message----- From: DaveLeonard [SMTP:daveleonard@cox.net] Sent: Sunday, May 23, 2004 2:15 AM To: Rotary motors in aircraft Subject: [FlyRotary] Two problems solved, 2 more pop up... Snip New Problem: RMI tach no good. According to my RMI engine monitor I have about 4300 RPM at 24 MAP. At 29 MAP I still only have about 4500 RPM and at 35 MAP I am still at 4500 RPM static. I dont buy it because it sure sounds different (faster). So I have to install an accessory Tachometer.... 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