X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 09 Apr 2012 11:54:57 -0400 Message-ID: X-Original-Return-Path: Received: from [69.146.254.18] (HELO exchange.arilabs.net) by logan.com (CommuniGate Pro SMTP 5.4.4) with ESMTPS id 5473547 for lml@lancaironline.net; Sun, 08 Apr 2012 23:54:27 -0400 Received-SPF: none receiver=logan.com; client-ip=69.146.254.18; envelope-from=kevin@arilabs.net Received: from exchange.arilabs.net ([10.100.100.1]) by exchange.arilabs.net ([10.100.100.1]) with mapi; Sun, 8 Apr 2012 21:53:50 -0600 From: Kevin Stallard X-Original-To: Lancair Mailing List X-Original-Date: Sun, 8 Apr 2012 21:53:49 -0600 Subject: RE: [LML] Engine "surge" issue Thread-Topic: [LML] Engine "surge" issue Thread-Index: Ac0V+bfSxnUgHzXsQ9qfv43kucAb3AACeKmA X-Original-Message-ID: <779FE3D761D7B741813E300858A248CF04E450E5@exchange.arilabs.net> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: multipart/alternative; boundary="_000_779FE3D761D7B741813E300858A248CF04E450E5exchangearilabs_" MIME-Version: 1.0 --_000_779FE3D761D7B741813E300858A248CF04E450E5exchangearilabs_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable We are really glad you are asking for help, and I suspect someone who under= stands this motor may give you a hand, but we really want to keep you arou= nd. Please be careful. I know that you have to figure out what is wrong, but = perhaps there is a way to do this that doesn't put you in excess danger? Kevin From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Bern= i Breen Sent: Sunday, April 08, 2012 8:37 PM To: lml@lancaironline.net Subject: [LML] Engine "surge" issue Whenever my GAMI injected IO360 powered Lancair 360 is really heated up, fo= llowing a flight and only a short time to cool down (less than 30 minutes) = and restarted, the engine will surge during idle and taxi. Again this only= happens when the engine is hot, has been shut down and restarted. The iss= ue never occurs when the airplane (engine) is started for the first time on= any given day (super hot day or super cold day). Since I feel the issue is fuel related I tried leaning and use of the elect= ronic fuel pump during idle and taxi with zero improvement. The engine run= s very badly with a pronounced surge. If I get on the runway and give the = engine full throttle, the engine will develop good power and lift off as if= there were no issue...that is until yesterday when the engine just about q= uit 2000' into my takeoff roll. I aborted the takeoff, did some high speed= taxiing and then took off 3 minutes later (no shutdown). Today I took off, climbed aggressively to get the engine good and hot and l= anded. I shutdown, let the engine sit for about 10 minutes, restarted and = once again experienced the surge during idle and or taxiing. I removed the= upper and lower cowl but am still not able to identify the cause of my iss= ue. Clearly I have an issue that is caused by heat affecting fuel. All of my f= uel lines are heat shielded. Can anyone offer suggestions or ideas that I = can try? Berni --_000_779FE3D761D7B741813E300858A248CF04E450E5exchangearilabs_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

We are re= ally glad you are asking for help, and I suspect someone who understands th= is motor may give you a hand,  but we really want to keep you around. =  

 

Please be careful.   I know = that you have to figure out what is wrong, but perhaps there is a way to do= this that doesn’t put you in excess danger?

 

<= span style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F= 497D'>Kevin

 

 

From: Lancair Mailing List [mailto:lml@lancaironline.net] = On Behalf Of Berni Breen
Sent: Sunday, April 08, 2012 8:37 PM=
To: lml@lancaironline.net
Subject: [LML] Engine "= surge" issue

 

Whenever my GAMI injected IO360 powered Lancair = 360 is really heated up, following a flight and only a short time to cool d= own (less than 30 minutes) and restarted, the engine will surge during idle= and taxi.  Again this only happens when the engine is hot, has been s= hut down and restarted.  The issue never occurs when the airplane (eng= ine) is started for the first time on any given day (super hot day or super= cold day).

 

Since I feel the issue is fuel related I tried lea= ning and use of the electronic fuel pump during idle and taxi with zero imp= rovement.  The engine runs very badly with a pronounced surge.  I= f I get on the runway and give the engine full throttle, the engine will de= velop good power and lift off as if there were no issue...that is until yes= terday when the engine just about quit 2000' into my takeoff roll.  I = aborted the takeoff, did some high speed taxiing and then took off 3 minute= s later (no shutdown).

 <= /o:p>

Today I took off, climbed aggressi= vely to get the engine good and hot and landed.  I shutdown, let the e= ngine sit for about 10 minutes, restarted and once again experienced the su= rge during idle and or taxiing.  I removed the upper and lower cowl bu= t am still not able to identify the cause of my issue.

=

 

Clearly I have an issue that is caused by heat affecting fuel.  Al= l of my fuel lines are heat shielded.  Can anyone offer suggestions or= ideas that I can try?

&= nbsp;

Berni

= --_000_779FE3D761D7B741813E300858A248CF04E450E5exchangearilabs_--