---------------------------------------------------------- JabiruEngine-List Digest Archive --- Total Messages Posted Thu 09/27/07: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:17 PM - Oil pressure problem (Rob Turk) 2. 12:29 PM - Re: Oil pressure problem (Gilles Thesee) ________________________________ Message 1 _____________________________________ Time: 12:17:45 PM PST US From: "Rob Turk" Subject: JabiruEngine-List: Oil pressure problem Folkes, We keep having worries about our oil pressure, hope you guys have some thoughts to share.. Our Jab3300 engine SN551 has ran 8 hours. I'm using the recommended run-in oil. The engine starts and runs well, regardless if it's hot or cold. When cold, the oil pressure gets to 55-60 psi, no problem, around 30 psi on idle. But as soon as the oil temperature climbs above 75 degrees Celsius, pressure drops rapidly to as low as 5 psi idle, and I need to run 1500 rpm to get above 15psi and during cruise @ 2700 rpm it's also fairly low at 25psi. Especially the really low pressure during taxi after landing worries us. We did apply the oil pump modification that was recommended to avoid cavitation (modified pump plate purchased from dealer), and we are wondering if there is anything that we could have done wrong in re-assembling the pump that could account for the low pressure. Or anything else that we should look into that might be wrong at all? Thanks for your help, Rob ________________________________ Message 2 _____________________________________ Time: 12:29:17 PM PST US From: Gilles Thesee Subject: Re: JabiruEngine-List: Oil pressure problem Rob Turk a crit : > anything else that we should look into that might be wrong at all ? Rob, Have you hooked up a mechanical gauge to rule out the sender and gauge ? That is the first thing I would do. Best regards, -- Gilles Thesee http://contrails.free.fr ------------------------------------------------------------------------------------- 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.