X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from securemail.ever-tek.com ([64.129.170.194] verified) by logan.com (CommuniGate Pro SMTP 5.2.16) with ESMTP id 3897669 for flyrotary@lancaironline.net; Sat, 24 Oct 2009 03:23:48 -0400 Received-SPF: none receiver=logan.com; client-ip=64.129.170.194; envelope-from=cbarber@texasattorney.net Received: from fcd-mail05.FCDATA.PRIVATE ([172.16.5.24]) by FCD-MAIL03.FCDATA.PRIVATE with Microsoft SMTPSVC(6.0.3790.3959); Sat, 24 Oct 2009 02:23:12 -0500 Received: from fcd-mail05.FCDATA.PRIVATE ([4.4.5.9]) by fcd-mail05.FCDATA.PRIVATE ([4.4.5.9]) with mapi; Sat, 24 Oct 2009 02:23:09 -0500 From: Chris Barber To: Rotary motors in aircraft Date: Sat, 24 Oct 2009 02:23:08 -0500 Subject: RPM drop Thread-Topic: RPM drop Thread-Index: AQHKVHrXwL1h+vqNpESCg2WROTdK7g== Message-ID: <6A3D27B02C7348499A682286EDB23105020CB7DC09@fcd-mail05.FCDATA.PRIVATE> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: multipart/alternative; boundary="_000_6A3D27B02C7348499A682286EDB23105020CB7DC09fcdmail05FCDA_" MIME-Version: 1.0 Return-Path: cbarber@texasattorney.net X-OriginalArrivalTime: 24 Oct 2009 07:23:12.0254 (UTC) FILETIME=[D82531E0:01CA547A] --_000_6A3D27B02C7348499A682286EDB23105020CB7DC09fcdmail05FCDA_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I hooked up my front oil cooler, the aviation one that was causing a restri= ction in the system and leakage past the oil filter seal, in parallel today= with the standard Mazda stock radiator. I cranked her up and the oil flow= ed and heated all parts of the system and after only one snugging of a fixt= ure, no leaks. Temps still were about the same. I took the engine to full= power. It does not like full power on the ramp. The temps raise really q= uickly and even after 60 seconds, I am at limits I am uncomfortable with. = I can have it sit at idle for over an hour with no problem. I have fans mo= unted, but they do not seem to help much at high RPM's. The weather was qu= ite cool for Houston at about 70 degrees today. On a related note. As I have mentioned I am getting just over 6000 rpm at = full throttle when I enrich the mixture. HOWEVER, once at full throttle th= e rpm is dropping off a few hundred rpm....maybe down to 5400 rpm. If I th= rottle back and go back to WOT it can get to just about 6000 again....maybe= not quite 6000. I can't play with it too long like this as the temps rais= e so quickly. Is this something obvious that I can check? Thoughts???? Thanks again. All the best, Chris Barber Houston --_000_6A3D27B02C7348499A682286EDB23105020CB7DC09fcdmail05FCDA_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

I hooked up my front oil cooler, the aviation one that was= causing a restriction in the system and leakage past the oil filter s= eal, in parallel today with the standard Mazda stock radiator. I= cranked her up and the oil flowed and heated all parts of the system and after only one snugging of a fixture, no leak= s. Temps still were about the same. I took the engine to full p= ower. It does not like full power on the ramp. The temps raise = really quickly and even after 60 seconds, I am at limits I am uncomfortable with. I can have it sit at idle for over an ho= ur with no problem. I have fans mounted, but they do not seem to help= much at high RPM's. The weather was quite cool for Houston at about = 70 degrees today.

On a related note. As= I have mentioned I am getting just over 6000 rpm at full throttle when I e= nrich the mixture. HOWEVER, once at full throttle the rpm is dropping= off a few hundred rpm....maybe down to 5400 rpm. If I throttle back and go back to WOT it can get to just about 6000 a= gain....maybe not quite 6000. I can't play with it too long like this= as the temps raise so quickly.

Is this something obvious t= hat I can check? Thoughts????

Thanks again.

All the best,

Chris Barber

Houston

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