---------------------------------------------------------- Lightning-List Digest Archive --- Total Messages Posted Wed 11/25/09: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:51 PM - Re: uneven EGT's (Allan Maxwell) 2. 06:06 PM - High indicated fuel flow with fuel pump on (Bill Strahan) ________________________________ Message 1 _____________________________________ Time: 05:51:21 PM PST US From: Allan Maxwell Subject: Re: Lightning-List: uneven EGT's Hi linda just wanted to give and up date to high egt's I changed the o ring s on the manifold and rotated the carb slightly to the right looking from t he tail forward of the plane. I had egt's- wireing problems must change a fter 4 years . I will change the carb jets in a couple of- days will let you know Allan Maxwell --- On Wed, 11/18/09, JOSEPH MATHIAS LINDA MATHIAS wrote: From: JOSEPH MATHIAS LINDA MATHIAS Subject: Re: Lightning-List: uneven EGT's Tex, --- You were lucky; rotating the carb made very little difference on my EGTs. - Linda ----- Original Message ----- From: Tex Mantell Sent: Wednesday, November 18, 2009 6:48 PM Subject: Lightning-List: uneven EGT's Nick, I also had a uneven egt on number one (1) . I rotated the carb about three degrees and problem gone. I use the normal scat tub between the air b ox and carb. All EGT's are now within 45 degrees.-- Tex href="http://www.aeroelectric.com">www.aeroelectric.com href="http://www.buildersbooks.com">www.buildersbooks.com href="http://www.homebuilthelp.com">www.homebuilthelp.com href="http://www.matronics.com/contribution">http://www.matronics.com/chr ef="http://www.matronics.com/Navigator?Lightning-List">http://www.matroni cs.com/Navigator?Lightning-List href="http://forums.matronics.com">http://forums.matronics.com =0A=0A=0A ________________________________ Message 2 _____________________________________ Time: 06:06:35 PM PST US Subject: Lightning-List: High indicated fuel flow with fuel pump on From: "Bill Strahan" I've been fleshing out my checklist and recently decided to add turning the fuel pump on for takeoff and landing. I'm used to that with my Grumman, and it felt natural to do it that way. Today I took off using the new checklist, and once I was a few miles from the airport I noticed my fuel flow was 11GPH! I've never seen anything near that high and my fuel flow already was reading about 10% too high. I throttled back to a setting that typically shows 4.5-5 gph and was seeing 7. For a moment, I pictured a fuel leak and decided to turn the boost pump on and see if the fuel flow surged, which would confirm a leak on the firewall side, and I was going to immediately return to the airport. Instead I realized I had left the boost pump on since takeoff and then I wondered if that was the cause of the high reading. Sure enough, with the boost pump off the EIS indicated 5.1 gph. Boost pump on and it jumped back to 7 or so. I was pretty sure I didn't have a fuel leak at that point, so left the pump on for a half hour or so while I flew. I saw a growing disparity between what the totalizer thought I had left and what the tanks were indicating, confirming to me that the indication is all that was changing, I wasn't pumping fuel overboard. So, anyone else noticed the same thing? I would have thought the flow sensor would have been independent of fuel pressure, but that appears to not be the case. Bill Read this topic online here: http://forums.matronics.com/viewtopic.php?p=274827#274827 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message lightning-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Lightning-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/lightning-list Browse Digests http://www.matronics.com/digest/lightning-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.