X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [216.211.128.10] (HELO mail-in02.adhost.com) by logan.com (CommuniGate Pro SMTP 5.0.9) with ESMTP id 1088103 for flyrotary@lancaironline.net; Mon, 01 May 2006 22:50:12 -0400 Received-SPF: none receiver=logan.com; client-ip=216.211.128.10; envelope-from=joeh@pilgrimtech.com Received: from Pilgrim10 (c-67-183-14-47.hsd1.wa.comcast.net [67.183.14.47]) by mail-in02.adhost.com (Postfix) with ESMTP id 25B52314A65 for ; Mon, 1 May 2006 19:49:28 -0700 (PDT) (envelope-from joeh@pilgrimtech.com) From: "Joe Hull" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Was Oil Pressure and Now... Date: Mon, 1 May 2006 19:49:27 -0700 Message-ID: <00fd01c66d93$0766b730$bb02a8c0@redmond.corp.microsoft.com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00FE_01C66D58.5B07DF30" X-Mailer: Microsoft Office Outlook 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2869 Thread-Index: AcZrOFoQbVTfIUfjR+KqYHfwv0eRlgCWnG0A In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_00FE_01C66D58.5B07DF30 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Thanx Lynn. I pulled the engine yesterday and am headed do to see Dave Atkins tomorrow. He's been pretty good with things in the past. I'm hoping it will go well tomorrow too. Thanx, Joe Hull Cozy Mk-IV #991 (In Phase1 Flight Test - 10.9 hrs flown) Redmond (Seattle), Washington _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Lehanover@aol.com Sent: Friday, April 28, 2006 7:54 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Was Oil Pressure and Now... In a message dated 4/28/2006 8:08:03 P.M. Eastern Daylight Time, russell.duffy@gmail.com writes: I dropped the pan today and there were a bunch of gold flakes in the pan. Not a huge amount overall but if I sloshed things into a corner it looked significant. So, pondering my next step. Remove the engine and return it to the builder with all performance data up to the loss of pressure. I would insist on being present for the disassembly. I talked to the engine builder for a National championship car about why they oiled both ends of the crank. They had lost the front rotor bearing on several occasions. They found a coaxial sleeve to fit over the crank nose, and ran the engine on the dyno at full power. The oil pressure in the crank with the oil pressure gage reading 75 pounds, was 5 pounds. So they began oiling the front main bearing with its own hose. Also jacked up the oil pressure to 100 PSI. It is probable that many builders found this same piece of data over the years. When oil pressure drops below 50 pounds, what is the pressure in the crank, and how much do you get back from the centrifugal load on the oil column? Once the engine is showing metal it has to come out. I would expect a free rebuild with so few hours. Lynn E. Hanover ------=_NextPart_000_00FE_01C66D58.5B07DF30 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Thanx Lynn. I pulled the engine = yesterday and am headed do to see Dave Atkins tomorrow. He’s been pretty = good with things in the past. I’m hoping it will go well tomorrow = too.

 

Thanx,

Joe = Hull

Cozy Mk-IV #991 (In Phase1 Flight = Test - 10.9 hrs flown)

Redmond (Seattle), Washington

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Lehanover@aol.com
Sent: Friday, April 28, = 2006 7:54 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Was Oil Pressure and Now...

 

In a message dated 4/28/2006 = 8:08:03 P.M. Eastern Daylight Time, russell.duffy@gmail.com = writes:

I dropped the pan today and there = were a bunch of gold flakes in the pan. Not a huge amount overall but if I = sloshed things into a corner it looked significant. So, pondering my next = step. 

Remove the engine and return it to = the builder with all performance data up to the loss of pressure. I would = insist on being present for the disassembly.

 

=

I talked to the engine builder for = a National championship car about why they oiled both ends of the crank. = They had lost the front rotor bearing on several occasions. They found a coaxial = sleeve to fit over the crank nose, and ran the engine on the dyno at full = power. The oil pressure in the crank with the oil pressure gage reading 75 pounds, = was 5 pounds.

 

=

So they began oiling the front = main bearing with its own hose. Also jacked up the oil pressure to 100 PSI. = It is probable that many builders found this same piece of data  over the = years.

 

=

When oil pressure drops below 50 = pounds, what is the pressure in the crank, and how much do you get back from the centrifugal load on the oil column?

 

=

Once the engine is showing metal = it has to come out. I would expect a free rebuild with so few = hours.

 

=

Lynn E. = Hanover 

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