---------------------------------------------------------- Lightning-List Digest Archive --- Total Messages Posted Fri 08/19/11: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 10:02 AM - Lightning Web site hacked!!! (flylightning) 2. 03:31 PM - Trobleshooting a temperature reading. (flylightning) ________________________________ Message 1 _____________________________________ Time: 10:02:07 AM PST US From: "flylightning" Subject: Lightning-List: Lightning Web site hacked!!! To all, Sorry for any inconvenience's that have occurred, but the Lightning Web site was hacked last week-end and needed to be shut down. We are slowly getting things recovered and back online. But as you may notice it is current as of 2010, not good. So we are here and you can call us. If you must email you can use Nick@flylightning.net or Mark@flylightning.net , but if you email Info@flylightning.net it will get lost in cyber space. Please give us a few days to get this working again as normal. Thanks Nick Otterback Arion Aircraft LLC ________________________________ Message 2 _____________________________________ Time: 03:31:28 PM PST US From: "flylightning" Subject: Lightning-List: Trobleshooting a temperature reading. Recently during some flight testing I noticed an odd reading on the EIS of one of our LS-1s. About 30 minutes into my flight the oil temperature had gone to 350 and stayed there. I do check it regularly during flight testing so I knew it hadn't slowly gone up as if there was a problem. Also my oil pressure was right around 50 psi so it must be an error. With the sending unit disconnected the EIS from GRT will read 59 and will never come up, so if its 80 out and your oil temp is 59 when you climb in to start the wire is probably disconnected. IF the wire should wear thru and ground out on the engine block it will go to the other end of the spectrum. Mainly because the probes work thru resistance and than give and indication. So in this case my oil temp probe must have been seeing different resistance hence the higher temp. Sure enough the wire had been rubbing on the bottom of the last cly head and worn straight thru to the wire. Cut the wire out and installed a new one and problem solved, oil temp around 210 after a WOT climb to 5.5k and than 185 after 15 minutes of cruising around, not bad for a new motor. So I guess the lesson learned is look at your indication and cross check other things in that system, had the oil pressure been 0 or really low I would have suspected a serious problem. Since it wasn't I simply landed normally and went to looking at the probe. On to a different probe for fun is the oil pressure unit on the front of the 3300. This is a VDO unit which will sometimes have two lugs. One says G for Gauge, the other W for work or in normal speak a Hobbs. If you are hooked up to the W the EIS will read 76psi, if it is simply disconnected 0. Have had this hooked up wrong on a few occasions to find a 80psi reading on a first start. If the unit should go bad during flight, it will usually start reading high than eventually read 76 all the time. Should it go the other way you have a problem. I guess the short story of the oil pressure probe is that if it is connected wrong or goes bad it will normally always go high. IF it goes the other way you probably have a problem. Thanks for reading. Nick Otterback Arion Aircraft LLC ------------------------------------------------------------------------------------- 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.