X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.121] verified) by logan.com (CommuniGate Pro SMTP 5.2.10) with ESMTP id 3329042 for flyrotary@lancaironline.net; Wed, 03 Dec 2008 14:07:10 -0500 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.121; envelope-from=eanderson@carolina.rr.com Received: from computername ([75.191.186.236]) by cdptpa-omta05.mail.rr.com with ESMTP id <20081203190634.PYNJ29639.cdptpa-omta05.mail.rr.com@computername> for ; Wed, 3 Dec 2008 19:06:34 +0000 From: "Ed Anderson" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: New Engine Break In with Gearbox -- for Tracy Date: Wed, 3 Dec 2008 14:06:41 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0049_01C95550.5E14B5D0" X-Mailer: Microsoft Office Outlook, Build 11.0.5510 Thread-Index: AclVYNjXI9Nl/MwGQlKpnt5jTYBJ1wAGNTLw X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 In-Reply-To: Message-Id: <20081203190634.PYNJ29639.cdptpa-omta05.mail.rr.com@computername> This is a multi-part message in MIME format. ------=_NextPart_000_0049_01C95550.5E14B5D0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Bobby, depending of where your oil pressure sensor is located (before or after the oil cooler - assuming a stock Rx-7 oil cooler with internal thermostat). IF you have removed the thermostat in the oil cooler and have not blocked that thermostat opening, then a lot of the oil will not flow through the several passages through the cooler core. This could mean you are not getting the normal pressure drop across the oil cooler which if your sensor is down stream would mean higher pressure at the sensor - but probably not more than 5 - 10 psi. Also as Tracy mentioned, if your pressure sensor/gauge is not calibrated then you don't know for certain if the pressure reading is accurate or not. Might try a mechanical gauge if you have one or can borrow one. Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.dmack.net/mazda/index.html _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bobby J. Hughes Sent: Wednesday, December 03, 2008 11:04 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: New Engine Break In with Gearbox -- for Tracy I am having a problem getting my oil temps up and oil pressure down without an oil thermostat. Will try blocking some of the air flow this weekend. Is 10W-40 or 10W-30 to light for the gearbox during the winter months? I plan to run the engine for at least 20 hours on the ground and switch back to Mobil 1 for first flight. Bobby _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Tracy Crook Sent: Wednesday, December 03, 2008 9:12 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: New Engine Break In with Gearbox -- for Tracy Next best in mineral oil is Shell Rotella. 15W - 50 or similar. Tracy On Wed, Dec 3, 2008 at 9:18 AM, Bobby J. Hughes wrote: Tracy, What oil do you recommend for breaking in a new engine that is also acceptable for the gearbox? Bruce T said to replace the Mobile 1 for 10-15 hours so the apex seals will seat. Thanks, Bobby J Hughes __________ Information from ESET NOD32 Antivirus, version of virus signature database 3267 (20080714) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ------=_NextPart_000_0049_01C95550.5E14B5D0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Bobby, depending of where your oil = pressure sensor is located (before or after the oil cooler – assuming a = stock Rx-7 oil cooler with internal thermostat).   IF you have removed = the thermostat in the oil cooler and have not blocked that thermostat = opening, then a lot of the oil will not flow through the several passages through the = cooler core.  This could mean you are not getting the normal pressure drop across the = oil cooler which if your sensor is down stream would mean higher pressure at = the sensor – but probably not more than 5 – 10 psi.  =

 

Also as Tracy mentioned, if your pressure sensor/gauge is not calibrated then you don’t know for certain if = the pressure reading is accurate or not.  Might try a mechanical gauge = if you have one or can borrow one.

 

Ed

 

Ed Anderson

Rv-6A N494BW Rotary = Powered

Matthews, NC

eanderson@carolina.rr.com=

http://www.andersonee.com

http://members.cox.net/rogersda/rotary/configs.htm#N494BW

http://www.dmack.net/mazda/index.html<= font size=3D2 face=3DArial>

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bobby J. Hughes
Sent: Wednesday, December = 03, 2008 11:04 AM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = New Engine Break In with Gearbox -- for Tracy

 

I am having a problem getting my = oil temps up and oil pressure down without an oil thermostat. Will try = blocking some of the air flow this weekend. Is 10W-40 or 10W-30 to light for = the gearbox during the winter months?  I plan to run the engine for at = least 20 hours on the ground and switch back to Mobil 1 for first flight. =

 

Bobby

 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Tracy Crook
Sent: Wednesday, December = 03, 2008 9:12 AM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = New Engine Break In with Gearbox -- for Tracy

Next best in = mineral oil is Shell Rotella.  15W - 50 or similar.

Tracy

On Wed, Dec 3, 2008 at 9:18 AM, Bobby J. Hughes <bhughes@qnsi.net> = wrote:

Tracy,

 

What oil do you recommend for breaking in a new = engine that is also acceptable for the gearbox? Bruce T said to replace the Mobile 1 for 10-15 hours so the apex seals will seat. =

 

Thanks,

Bobby J = Hughes

 

 




__________ Information from ESET NOD32 Antivirus, version of virus = signature database 3267 (20080714) __________

The message was checked by ESET NOD32 Antivirus.

http://www.eset.com

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