X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [137.118.16.59] (HELO smtp1.av-mx.com) by logan.com (CommuniGate Pro SMTP 5.4.3) with ESMTP id 5347020 for flyrotary@lancaironline.net; Wed, 11 Jan 2012 22:10:18 -0500 Received-SPF: pass receiver=logan.com; client-ip=137.118.16.59; envelope-from=res12@fairpoint.net Received: from MAIN (dflo-66-243-230-252.gtcom.net [66.243.230.252]) (Authenticated sender: res12@fairpoint.net) by smtp1.av-mx.com (Postfix) with ESMTP id A305D292273 for ; Wed, 11 Jan 2012 22:09:43 -0500 (EST) Message-ID: <127B9BDC386144AE8F18C946EC6CF48F@MAIN> From: "Richard Sohn" To: Subject: Single Rotor update Date: Wed, 11 Jan 2012 21:09:39 -0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0242_01CCD0A5.54BC2760" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 15.4.3538.513 X-MimeOLE: Produced By Microsoft MimeOLE V15.4.3538.513 This is a multi-part message in MIME format. ------=_NextPart_000_0242_01CCD0A5.54BC2760 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable The ROTARY PRAGMA with the one rotor engine is finally doing taxi tests. = This is without cowling. Every thing, almost, is running good. = Temperatures were good with 160F for oil and water at 70F OAT. All = systems seem to be working as planed. I had to play a little bit with = the throttle setting for starting, but after a couple of times it became = real easy and it started every time. She is really wanting to fly now! The recently reported blowout of the oil filter gasket was traced to two = causes. One was the oil I used. I concluded from the testing on the = stand that using 40 or 50 weight VR1 racing oil would be a good choice. = It did work on the test stand satisfactory. However, at 45F temperature = it is awfully thick, and my conclusion was it was a major contributor to = the blow out. The other thing was, the oil filter I used was a general = type filter. When I had a closer look at the design of the rubber gasket = and its placement in the filter body in different filters, especially on = an old Delco fro m one of my 1987/88 RX7 engines, I realized a = significant difference. These filters have an o-ring as a seal placed in = a groove which makes it possible to tighten the filter to the metal to = metal point keeping the rubber seal completely enclosed. Looking for = this kind of filter in the auto parts store led me to a K&N filter. It = is pricy at $15.00 but is the same seal design as that old Delco. Using the K&N filter and W20/50 VR! oil solved the problem.=20 ------=_NextPart_000_0242_01CCD0A5.54BC2760 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

The ROTARY PRAGMA with the one rotor engine is finally doing taxi = tests.=20 This is without cowling. Every thing, almost, is running good. = Temperatures were=20 good with 160F for oil and water at 70F OAT. All systems seem to be = working as=20 planed. I had to play a little bit with the throttle setting for = starting, but=20 after a couple of times it became real easy and it started every = time. She=20 is really wanting to fly now!

The recently reported blowout of the oil filter gasket was traced = to two=20 causes. One was the oil I used. I concluded from the testing on the = stand that=20 using 40 or 50 weight VR1 racing oil would be a good choice. It did work = on the=20 test stand satisfactory. However, at 45F temperature it is awfully = thick, and my=20 conclusion was it was a major contributor to the blow out. The other = thing was,=20 the oil filter I used was a general type filter. When I had a closer = look at the=20 design of the rubber gasket and its placement in the filter body in = different=20 filters, especially on an old Delco fro m one of my 1987/88 RX7 engines, = I=20 realized a significant difference. These filters have an o-ring as a = seal placed=20 in a groove which makes it possible to tighten the filter to the metal = to metal=20 point keeping the rubber seal completely enclosed. Looking for this kind = of=20 filter in the auto parts store led me to a K&N filter. It is pricy = at $15.00=20 but is the same seal design as that old Delco.

Using the K&N filter and W20/50 VR! oil solved the problem. =

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