---------------------------------------------------------- Engines-List Digest Archive --- Total Messages Posted Sat 06/26/04: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:23 AM - Re: egt's (Gary Casey) 2. 06:28 AM - The Annual Inpection - Powerplant; a new video (Aircraft Technical Book Company) ________________________________ Message 1 _____________________________________ Time: 05:23:17 AM PST US From: "Gary Casey" Subject: Engines-List: Re: egt's --> Engines-List message posted by: "Gary Casey" <at takeoff. At cruise the egt's fall down to around 1350-1375.>> While the exact temperatures may vary, as someone suggested, because of probe position and other factors, I would expect that the EGT's would be higher in cruise than takeoff. For adequate cooling at full throttle and low altitude air-cooled aircraft engines are typically set up with very rich mixtures, which will keep the EGT's at takeoff to 1350 or less. On my IO-360 with the standard system the temperatures range from 1250 to 1300. At lower power conditions you are "allowed" to lean to close to peak (on the lean side, I hope) so the temperatures will typically be in the 1450 to 1500 range. Under very low manifold pressure conditions the exhaust temperatures will, of course, be lower. What concerns me is that your temps are so high at takeoff - there is no way that can happen unless the mixture is set at even leaner than best power, which is in the 1350 to 1400 range. Who's FADEC system is it? My comments are based on a "normal" compression ratio of 8.5 to 10 and ignition timing in the 20 to 25 range. Gary Casey ________________________________ Message 2 _____________________________________ Time: 06:28:39 AM PST US From: "Aircraft Technical Book Company" Subject: Engines-List: The Annual Inpection - Powerplant; a new video --> Engines-List message posted by: "Aircraft Technical Book Company" I don't normally spam on this list, but I've been working on this video for about a year, its my first one, and I'm kinda proud of it. So here goes: THE ANNUAL INSPECTION - POWERPLANT 55 minutes Follow Westwood College of Aviation A&P instructors Tim Guerrera and Vaughn Dowell through a step by step demonstration of an annual inspection of the powerplant section of a Lycoming 0-360. This video explains every step of the process from an initial AD search to the final log entries. Each procedure is detailed including compression check, ignition timing, spark plug service, exhaust pressure check, oil change, fuel system, propeller, electrical system, etc..... , showing the proper techniques along with plenty of professional hints and tips. A final segment details safety wiring techniques as used throughout the powerplant section. Most of this video was filmed at Westwood College in Denver using a Piper Archer, however a few segments were done locally in Granby, CO with my RV-6A and hangarmate Dave Cook's RV-6. available now in DVD and VHS from Builder's Bookstore http://www.buildersbooks.com/annual_inspection_powerplant.htm 800 780-4115 ...and to sweeten up the spam, mention "Matronics" when you order and get 25% off through the end of June. Thanks, Andy RV-6A N-5060 flying do not archive