X-Virus-Scanned: clean according to Sophos on Logan.com From: "Jeff Whaley" Received: from hub026-NJ-3.exch026.serverdata.net ([206.225.166.166] verified) by logan.com (CommuniGate Pro SMTP 6.1.8) with ESMTPS id 8358401 for flyrotary@lancaironline.net; Tue, 26 Jan 2016 21:58:28 -0500 Received-SPF: none receiver=logan.com; client-ip=206.225.166.166; envelope-from=jwhaley@datacast.com Received: from MBX026-E1-NJ-2.exch026.domain.local ([10.240.14.52]) by HUB026-NJ-3.exch026.domain.local ([10.240.14.36]) with mapi id 14.03.0266.001; Tue, 26 Jan 2016 18:58:01 -0800 To: 'Rotary motors in aircraft' Subject: Re: parts upgrade; was: What do you think might be happening? Thread-Topic: parts upgrade; was: What do you think might be happening? Thread-Index: AdFYqpZm12rcsxVXTKCNOz+1NV2jWw== Date: Wed, 27 Jan 2016 02:58:01 +0000 Message-ID: <234B758DE9A64449BEB6BB5D1345CA7A48F0E6A3@mbx026-e1-nj-2.exch026.domain.local> Accept-Language: en-CA, en-US Content-Language: en-CA X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [204.237.127.244] Content-Type: multipart/alternative; boundary="_000_234B758DE9A64449BEB6BB5D1345CA7A48F0E6A3mbx026e1nj2exch_" MIME-Version: 1.0 --_000_234B758DE9A64449BEB6BB5D1345CA7A48F0E6A3mbx026e1nj2exch_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Bill a couple more things that now come to mind: 1) 1400 rpm is a pretty low engine speed to test swapping injectors - try i= t again at 3000 rpm so engine has inertia. 2) Due to near idle conditions this could be a problem with Mode 2 adjustme= nt and non-perfect match of PRI and SEC injectors. The PRIs squirt directly into the housing; the SECs typically = are much further away - the engine needs a moment to now get the fuel charg= e out of the intake/runners. My engine always stumbles for a split second -= longer if engine or OAT are cold - I usually this check around 3000 rpm th= en go to controller B for coil checks. 3) Possibly there has been an incorrect setting in Mode 6: injector differe= ntial adjustment that has greater effect at low rpms Vs higher rpms. If yo= ur injectors are all the same your Mode 6 compensation should be minimal. Jeff Have you tried all the previously-mentioned checks using controller B? NO. TRYING THIS ON CONTROLLER B IS THE NEXT TEST. I can=92t think of anything else =85 DON=92T STOP NOW YOU ARE ON A ROLL!! :>) This message, and the documents attached hereto, is intended only for the a= ddressee and may contain privileged or confidential information. Any unauth= orized disclosure is strictly prohibited. If you have received this message= in error, please notify us immediately so that we may correct our internal= records. Please then delete the original message. Thank you. --_000_234B758DE9A64449BEB6BB5D1345CA7A48F0E6A3mbx026e1nj2exch_ Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Bill a couple more things that now come to mind:
1) 1400 rpm is a pretty low engine speed to test swapping injectors - try i= t again at 3000 rpm so engine has inertia.
2) Due to near idle conditions this could be a problem with Mode 2 adjustme= nt and non-perfect match of PRI and SEC
 injectors.  The PRIs squirt directly into the housing; the SECs = typically are much further away - the engine needs a moment to now get the = fuel charge out of the intake/runners. My engine always stumbles for a spli= t second - longer if engine or OAT are cold - I usually this check around 3000 rpm then go to controller B for coil ch= ecks.
3) Possibly there has been an incorrect setting in Mode 6: injector differe= ntial adjustment that has greater effect at low rpms Vs higher rpms.  = If your injectors are all the same your Mode 6 compensation should be minim= al.
Jeff

= Have you tried al= l the previously-mentioned checks using controller B?

NO. TRYING THI= S ON CONTROLLER B IS THE NEXT TEST.

= I can=92t think o= f anything else =85  

DON=92T STOP N= OW YOU ARE ON A ROLL!!   :>)


This message, and the documents attached hereto, is intended only for the a= ddressee and may contain privileged or confidential information. Any unauth= orized disclosure is strictly prohibited. If you have received this message= in error, please notify us immediately so that we may correct our internal records. Please then delete the origin= al message. Thank you. --_000_234B758DE9A64449BEB6BB5D1345CA7A48F0E6A3mbx026e1nj2exch_--