---------------------------------------------------------- JabiruEngine-List Digest Archive --- Total Messages Posted Sat 08/07/10: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:29 PM - "MAG" Check (MHerder) 2. 09:19 PM - Re: "MAG" Check (Ivan) ________________________________ Message 1 _____________________________________ Time: 08:29:37 PM PST US Subject: JabiruEngine-List: "MAG" Check From: "MHerder" What RPM are you doing your "Mag" Check at? What's a normal drop? I was trying 1800 RPM and am not getting a noticable drop, also not getting a noticeable drop when I kick in the carb heat? Engine has about .9 hr of ground run time on it and we're still working out some kinks. I guess we call a "mag" check a coil or orgnition check on a Jab? I'm using the Grand Rapids EIS and noticed that there are two sensitivity settings on the tach, but I want to get some go no go parameters from some folks. Thanks -------- One Rivet at a Time! Read this topic online here: http://forums.matronics.com/viewtopic.php?p=307893#307893 ________________________________ Message 2 _____________________________________ Time: 09:19:43 PM PST US From: "Ivan" Subject: Re: JabiruEngine-List: "MAG" Check The Jab engine manual has all these operating limitation parameters. I do my mag check at about 2000RPM and the drop parameters I think are less than 100RPM drop and less than 100 from side to side. This is from memory but I know the manual states these figures. I have these figures printed in my engine run up checklist. I never get a carb heat drop unless there is some icing in the carburetor. Not exactly sure why but I think it has something to do with the Bing being set up as "altitude compensating." Ivan Phoenix, AZ ----- Original Message ----- From: "MHerder" Sent: Saturday, August 07, 2010 8:28 PM Subject: JabiruEngine-List: "MAG" Check > > > What RPM are you doing your "Mag" Check at? What's a normal drop? I was > trying 1800 RPM and am not getting a noticable drop, also not getting a > noticeable drop when I kick in the carb heat? > > Engine has about .9 hr of ground run time on it and we're still working > out some kinks. > > I guess we call a "mag" check a coil or orgnition check on a Jab? > > I'm using the Grand Rapids EIS and noticed that there are two sensitivity > settings on the tach, but I want to get some go no go parameters from some > folks. > > Thanks > > -------- > One Rivet at a Time! > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=307893#307893 > > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message jabiruengine-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/JabiruEngine-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/jabiruengine-list Browse Digests http://www.matronics.com/digest/jabiruengine-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.