X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imr-ma06.mx.aol.com ([64.12.78.142] verified) by logan.com (CommuniGate Pro SMTP 5.4c2o) with ESMTP id 4884444 for flyrotary@lancaironline.net; Sun, 27 Feb 2011 16:20:48 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.78.142; envelope-from=Bktrub@aol.com Received: from imo-ma04.mx.aol.com (imo-ma04.mx.aol.com [64.12.78.139]) by imr-ma06.mx.aol.com (8.14.1/8.14.1) with ESMTP id p1RLKASs011913 for ; Sun, 27 Feb 2011 16:20:10 -0500 Received: from Bktrub@aol.com by imo-ma04.mx.aol.com (mail_out_v42.9.) id q.103c.2d896a (37162) for ; Sun, 27 Feb 2011 16:20:05 -0500 (EST) Received: from smtprly-db01.mx.aol.com (smtprly-db01.mx.aol.com [205.188.249.152]) by cia-ma04.mx.aol.com (v129.9) with ESMTP id MAILCIAMA041-5bc44d6ac0049b; Sun, 27 Feb 2011 16:20:05 -0500 Received: from webmail-d033 (webmail-d033.sim.aol.com [205.188.181.81]) by smtprly-db01.mx.aol.com (v129.9) with ESMTP id MAILSMTPRLYDB013-5bc44d6ac0049b; Sun, 27 Feb 2011 16:20:04 -0500 References: To: flyrotary@lancaironline.net Subject: Re: [FlyRotary] Re: EC2/ Tracy Date: Sun, 27 Feb 2011 16:20:03 -0500 X-AOL-IP: 74.110.91.118 In-Reply-To: X-MB-Message-Source: WebUI MIME-Version: 1.0 From: bktrub@aol.com X-MB-Message-Type: User Content-Type: multipart/alternative; boundary="--------MB_8CDA4DB3BCC1B14_139C_2EBAE_webmail-d033.sysops.aol.com" X-Mailer: AOL Webmail 33298-STANDARD Received: from 74.110.91.118 by webmail-d033.sysops.aol.com (205.188.181.81) with HTTP (WebMailUI); Sun, 27 Feb 2011 16:20:03 -0500 Message-Id: <8CDA4DB3BBDD2CE-139C-16052@webmail-d033.sysops.aol.com> X-Spam-Flag:NO X-AOL-SENDER: Bktrub@aol.com ----------MB_8CDA4DB3BCC1B14_139C_2EBAE_webmail-d033.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="us-ascii" No, I don't have a secondary injector failure as far as I know. Several po= ints- I had the injectors cleaned and flow tested. Primaries are 28 #, sec= ondaries 40#- the engine is a 13bREW- 93 twin turbo, but normally aspirated. I checked to see if al= l the injectors were firing by disconnecting all the other leads and runni= ng on mode 1, engine off and press program switch. They all are firing. Al= so ran the injector backup proceedure.=20 The engine runs well on the ground all through the power band, but in the= air , after staging it is a bit rough and misses. My theory- the secondar= ies are not firing equally and need to be tuned in mode 4. The engine stag= es normally at MAP address 84, and transistions through that point pretty= smoothly, and runs very smooth below that point. That's why I think I nee= d a bit of rotor matching in mode 4 above the staging point using the EGTs= . I feel that I am making definate progress. Brian Trubee -----Original Message----- From: Steven W. Boese To: Rotary motors in aircraft Sent: Sun, Feb 27, 2011 8:48 am Subject: [FlyRotary] Re: EC2/ Tracy The same thing can be accomplished without removing and exchanging the inj= ectors by using the injector backup procedure. =20 Steve Boese =20 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Be= half Of stevei@carey.asn.au Sent: Sunday, February 27, 2011 8:09 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: EC2/ Tracy =20 Hi Brian=20 =20 You don't have a secondary injector failure do you? If your Pri and Sec injectors are the same, how about swapping them and ru= n on the secondaries under the staging point and see if she is smooth, thu= s confirming the Secondaries are OK. Otherwise if you can run her up on the ground above the staging point and= disconnect one sec and then the other, you'll be able to confirm the Sec'= s are OK.=20 So if after disconnecting a secondary there is no change, that injector is= Duff. With the other one if she goes smooth, it would suggest the other= Sec is Duff. Just a thought. =20 Steve Izett On 27/02/2011, at 7:28 AM, wrote: =20 =3D=20 ----------MB_8CDA4DB3BCC1B14_139C_2EBAE_webmail-d033.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="us-ascii"
No, I don't have a secondary injector failure as far as I know. Sever= al points- I had the injectors cleaned and flow tested. Primaries are 28= #, secondaries 40#- the engine
is a 13bREW- 93 twin turbo, but normally aspirated. I checked to see= if all the injectors were firing by disconnecting all the other leads and= running on mode 1, engine off and press program switch. They all are firi= ng. Also ran the injector backup proceedure.
 
The engine runs well on the ground all through the power band, but in= the air , after staging it is a bit rough and misses. My theory- the seco= ndaries are not firing equally and need to be tuned in mode 4. The engine= stages normally at MAP address 84, and transistions through that point pr= etty smoothly, and runs very smooth below that point. That's why I think= I need a bit of rotor matching in mode 4 above the staging point using th= e EGTs.
 
I feel that I am making definate progress.
 
Brian Trubee


-----Original Message-----
From: Steven W. Boese <SBoese@uwyo.edu>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Sun, Feb 27, 2011 8:48 am
Subject: [FlyRotary] Re: EC2/ Tracy

The same thing can be accomplished without removing and exc= hanging the injectors by using the injector backup procedure.
 
Steve Boese
 
Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of stevei@carey.asn.= au
Sent: Sunday, February 27, 2011 8:09 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: EC2/ Tracy
 
Hi Brian
 
You don't have a secondary injector failure do you?=
If your Pri and Sec injectors are the same, how abo= ut swapping them and run on the secondaries under the staging point and se= e if she is smooth, thus confirming the Secondaries are OK.
Otherwise if you can run her up on the ground above= the staging point and disconnect one sec and then the other, you'll be ab= le to confirm the Sec's are OK. 
So if after disconnecting a secondary there is no= change, that injector is Duff. With the other one if she goes smooth, it= would suggest the other Sec is Duff.
Just a thought.
 
Steve Izett
On 27/02/2011, at 7:28 AM, <bktrub@aol.com> <bktrub@aol.com> wrote:
 
=3D
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