---------------------------------------------------------- Commander-List Digest Archive --- Total Messages Posted Thu 04/12/07: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:33 AM - Re: GSIO-540 - comments, common failures, bugs, running (Philip Guziec) 2. 01:25 PM - Re: GSIO-540 - comments, common failures, bugs, running (Moe - Ross Racing Pistons) 3. 01:43 PM - Re: Commander-List Digest: 3 Msgs - 04/11/07 (Philip Guziec) 4. 05:09 PM - Sun-N-Fun (YOURTCFG@aol.com) ________________________________ Message 1 _____________________________________ Time: 09:33:34 AM PST US From: Philip Guziec Subject: RE: Commander-List: GSIO-540 - comments, common failures, bugs, running Thanks for all the info Moe. >1. Simmonds fuel injection system. $ 4,000.00 each to overhaul, and >the mixture lever requires constant attention on the ground as the pumps use >oil pressure to opeate the internal "computer". Only one company in the >world can legally overhaul them, and as soon as you get them back take your >plane to Morris and get him to "fine tune" them. I'll check if this plane has Simmonds injection or Bendix. >2. The ease with which they can be overboosted (even on the ground). Do they produce more than rated manifold pressure at sea level with full throttle? How are they typically overboosted? >4. They are the shortest TBO of any engine that Lycoming ever built, >and the most expensive to overhaul (between $ 42,000.00 and $ 67,000.00 each >a couple of years ago). Conventional wisdom rumors are that a top overhaul >will be required on each engine at about 600 hours. Figure about $ 125.00 >to $ 150.00 per hour for the engines, and you will be OK. That's what I was figuring. What is the TBO? 1200? >5. Don't ever run one out of fuel while in flight. Restarting takes a >long time, and the re-fire is so jerkey, that you stand a good chance of >serious injury to the gear box. Also good to know. >7. At altitude run between 75F and 100F lean of peak at about 65% >power. What's the fuel flow at that setting? What's the MP/RPM that gives 65%? >The good news is that they make good power even at a high altitude hot >airfield. And quiet, I hear. >Ya gotta love 'em to run 'em I'm getting that sense. There is one heck of a coolness factor, though. Thanks for all the help, Moe. Phil ________________________________ Message 2 _____________________________________ Time: 01:25:00 PM PST US From: "Moe - Ross Racing Pistons" Subject: RE: Commander-List: GSIO-540 - comments, common failures, bugs, running -----Original Message----- From: owner-commander-list-server@matronics.com [mailto:owner-commander-list-server@matronics.com] On Behalf Of Philip Guziec Sent: Thursday, April 12, 2007 9:33 AM Subject: RE: Commander-List: GSIO-540 - comments, common failures, bugs, running Thanks for all the info Moe. >1. Simmonds fuel injection system. $ 4,000.00 each to overhaul, and >the mixture lever requires constant attention on the ground as the pumps use >oil pressure to opeate the internal "computer". Only one company in the >world can legally overhaul them, and as soon as you get them back take your >plane to Morris and get him to "fine tune" them. I'll check if this plane has Simmonds injection or Bendix. >2. The ease with which they can be overboosted (even on the ground). Do they produce more than rated manifold pressure at sea level with full throttle? How are they typically over boosted? Yes they will produce WAY over 29.92 on the ground. The first day I owned my plane I over boosted both engines big time on the ground, before my first lesson, only because on my prior twin it was OK to firewall the throttles. There is no waste gate on the superchargers except for your right hand. >4. They are the shortest TBO of any engine that Lycoming ever built, >and the most expensive to overhaul (between $ 42,000.00 and $ 67,000.00 each >a couple of years ago). Conventional wisdom rumors are that a top overhaul >will be required on each engine at about 600 hours. Figure about $ 125.00 >to $ 150.00 per hour for the engines, and you will be OK. That's what I was figuring. What is the TBO? 1200? Yes >5. Don't ever run one out of fuel while in flight. Restarting takes a >long time, and the re-fire is so jerkey, that you stand a good chance of >serious injury to the gear box. Also good to know. >7. At altitude run between 75F and 100F lean of peak at about 65% >power. What's the fuel flow at that setting? About 42 gals (21 gals per side). Per hour total. What's the MP/RPM that gives 65%? At about 17,000 feet, all the manifold pressure that you can get (about 26lbs) and about 2,600 RPM. Your no wind ground speed in a 680F(p) will be about 180 Knots. If you want to go fast, go 100 rich of peak, all of the pressure you can get and 2,700 RPM. Engines will run hot, and you will burn about 52 gallons per hour. >The good news is that they make good power even at a high altitude hot >airfield. And quiet, I hear. >Ya gotta love 'em to run 'em I'm getting that sense. There is one heck of a coolness factor, though. The coolness factor can't be beat. Not as ostentatious as my next door neighbors seven series BMW (I usually drive well used Chevrolets). Aircraft are an emotional issue, not one of practicality. Thanks for all the help, Moe. You are welcome any time. Moe Phil ________________________________ Message 3 _____________________________________ Time: 01:43:28 PM PST US From: Philip Guziec Subject: Commander-List: Re: Commander-List Digest: 3 Msgs - 04/11/07 Moe, A bit more info to see if it sparks any thoughts. This plane has A1A and AGA suffix engines, with Bendix fuel injection and mags. 400 hours on the engines. Is the conventional wisdom on top overhauls based on overboost, overheat, valve problems of some sort, rings, or what? I assume the 600 hour overhauls means it's unwise to run them past TBO? You don't happen to make pistons for these engines, do you?;-) Phil ________________________________ Message 4 _____________________________________ Time: 05:09:58 PM PST US From: YOURTCFG@aol.com Subject: Commander-List: Sun-N-Fun >From TCFG member Pat Augustine: I will be attending Sun-N-Fun for most of the event this year. I was hoping to get together with other TCFG members for a dinner while there. If I can get the names and contact info of attending members I will organize a dinner. Thank you in advance, Pat Augustine C (704) 906-2058 H (704) 442-8968 ************************************** See what's free at http://www.aol.com. ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message commander-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Commander-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/commander-list Browse Digests http://www.matronics.com/digest/commander-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.