---------------------------------------------------------- JabiruEngine-List Digest Archive --- Total Messages Posted Sat 01/27/18: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:04 PM - Fuel Pressure (BobbyPaulk@comcast.net) ________________________________ Message 1 _____________________________________ Time: 01:04:07 PM PST US From: BobbyPaulk@comcast.net Subject: JabiruEngine-List: Fuel Pressure Hope some of you Jabiru gurus are still lurking on the list. I have 292 hrs on my 3300. Over the last year the fuel pressure has slowly dropped. At Cruise it is 1.8 steady but will sometimes dip to 1.1. At run up ( 1200 to 1700 ) it will vary between 1.0 and 2.3. It is very unsettling to get a low pressure alarm on takeoff roll even with boost pump on it drops to .9 at times. I have recently dropped my low pressure alarm from 1.5 to 1.2. It will usually come back up to 1.8 after throttling back to about 2700 rpm. The electric fuel boost pump is only 3 yrs old but the engine pump is original 11 yrs old. Is there a time recommendation for changing out the engine pump and / or the boost pump. The boost pump was bought at NAPA. The engine fuel pump I believe is BCD1875 modified by Jabiru. Electric boost pump is Facet FAC40105. Should be 3 to 4.5 psi. My fuel pressure transducer is 0 to 60 psi. and I am wondering if that could be all of my problem. Dynon recommends 0 to 10 or 20 psi. Any help will be greatly appreciated. Bobby Coming up on age 80 ------------------------------------------------------------------------------------- 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.