X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail.fdic.gov ([167.176.6.5] verified) by logan.com (CommuniGate Pro SMTP 4.3.4) with ESMTPS id 1005608 for flyrotary@lancaironline.net; Fri, 17 Jun 2005 17:36:07 -0400 Received-SPF: error receiver=logan.com; client-ip=167.176.6.5; envelope-from=brogers@fdic.gov Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C57384.6ADB05C0" X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Subject: RE: [FlyRotary] Re: turbo oil drain Date: Fri, 17 Jun 2005 16:35:00 -0500 Message-ID: <15839C662A43B844B6E393DBFEAA90BF026DE27B@dalexc101p.prod.fdic.gov> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] Re: turbo oil drain Thread-Index: AcVxJvc815Il/4Y3QA+mRsM6ylplBQCW/aUw From: "Rogers, Bob J." To: "Rotary motors in aircraft" Return-Path: BRogers@FDIC.gov X-OriginalArrivalTime: 17 Jun 2005 21:35:02.0241 (UTC) FILETIME=[6B43CD10:01C57384] This is a multi-part message in MIME format. ------_=_NextPart_001_01C57384.6ADB05C0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable I made a small tank to catch the oil coming out of the turbo before it goes to the scavenge pump. This helps to defroth the oil. I bought an oil level sensor from this company http://www.aircraftextras.com/LowOilSensor.htm to put in the small tank. If the pump stops and the catch tank gets full, the oil level sensor completes a circuit that turns on a warning light on my panel. I will know immediately if my oil is being pumped overboard through the turbo. I also connected a timer to the pump that is adjustable both for time running and time off. Since the pump can flow a lot more oil per minute than flows through the turbo, I did not want the pump to be pumping air most of the time, which could shorten its life. It cycles on and off when needed, and I set the time by trial and error. If the panel light comes on intermittently, I know that I need for the pump's off cycle to be a little shorter. =20 -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Russell Duffy Sent: Tuesday, June 14, 2005 4:20 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: turbo oil drain =20 Here is a company that sells a turbo oil scavenge pump. http://westech.home.mindspring.com/ =20 =20 Thanks, but as it turns out, I already bought one from Buly. His is a bit smaller and lighter, but higher flow and (unfortunately) current draw. I always take these specs with a grain of salt though, so we'll see how it works in reality. =20 I've already thought of one problem, which is what will happen if the motor ever stops running. If that happens, depending on the flow resistance of the stopped pump, it could blow the turbo seal instantly. The plan will be to route a normal oil drain line to the front cover, which will be about 12" uphill. Near the turbo, I'll T into the line, and attach the pump, which will send the oil to anywhere convenient. This will also keep the pump from creating a suction on the turbo bearings. =20 =20 Yep, I guess this makes Rev-5 official, though I'm planning to (try to) hold off until get the Kolb ready to fly. =20 Cheers, Rusty=20 . =20 =20 =20 ------_=_NextPart_001_01C57384.6ADB05C0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

I made a small tank to catch the = oil coming out of the turbo before it goes to the scavenge pump.  This = helps to defroth the oil.  I bought an oil level sensor from this company = http://www.aircra= ftextras.com/LowOilSensor.htm  to put in the small tank.  If the pump stops and the catch tank = gets full, the oil level sensor completes a circuit that turns on a warning light = on my panel.  I will know immediately if my oil is being pumped overboard through the turbo.  I also connected a timer to the pump that is adjustable both for time running and time off.  Since the pump can = flow a lot more oil per minute than flows through the turbo, I did not want the = pump to be pumping air most of the time, which could shorten its life. =  It cycles on and off when needed, and I set the time by trial and error. =  If the panel light comes on intermittently, I know that I need for the = pump’s off cycle to be a little shorter.

 

-----Original = Message-----
From: Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Russell Duffy
Sent: Tuesday, June 14, 2005 4:20 = PM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = turbo oil drain

 

Here is a = company that sells a turbo oil scavenge pump. http://westech.home.mindspri= ng.com/   

 

Thanks, but as it = turns out, I already bought one from Buly.  His is a bit smaller and lighter, but higher flow and (unfortunately) current draw.  I = always take these specs with a grain of salt though, so we'll see how it works = in reality.

 

I've already = thought of one problem, which is what will happen if the motor ever stops running.  If that happens, depending on the flow resistance of the = stopped pump, it could blow the turbo seal instantly.  The plan = will be to route a normal oil drain line to the front cover, which will be = about 12" uphill.  Near the turbo, I'll T into the line, = and attach the pump, which will send the oil to anywhere convenient. This will also keep the pump from creating a suction on the turbo = bearings.  

 

Yep, I guess = this makes Rev-5 official, though I'm planning to (try to) hold = off until get the Kolb ready to fly.

 

Cheers,

Rusty =

.  

 

 

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