---------------------------------------------------------- JabiruEngine-List Digest Archive --- Total Messages Posted Sun 02/28/10: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:54 PM - Engine Weight Comparison - Jabiru 3300 To Rotax 912 ULS (david van lanen) 2. 09:32 PM - STUCK PROP FLANGE BOLT- HELP ME PLEASE (MHerder) ________________________________ Message 1 _____________________________________ Time: 07:54:28 PM PST US From: "david van lanen" Subject: JabiruEngine-List: Engine Weight Comparison - Jabiru 3300 To Rotax 912 ULS Has anyone compared the installed "wet" weight of a Jabiru 3300 to a Rotax 912 ULS, and if so, can you give me an approximate weight difference? Thanks, Dave Van Lanen Madison, WI ________________________________ Message 2 _____________________________________ Time: 09:32:51 PM PST US Subject: JabiruEngine-List: STUCK PROP FLANGE BOLT- HELP ME PLEASE From: "MHerder" Guys I'm having a really crappy night. This evening I decided to prepare for the final installation of my 2.5" prop hub extension on my 3300. In strict accordance with the service bulletins I heated the flange and bolts while protecting the rubber seals with a wet rag and I safely removed all six bolts. SUCCESS... I thought. I thouroghly removed all of the loctite with a dental pick, then acetone on the female side. I then used a steel brush and cleaned the female threads. I then cleaned the bolts with a wire brush on a wheel. Acetone 3 or four more times, cleaning very thuroghtly, making sure not to get oils from my hands on the bolts. Cleaning, blowing with compressed air, acetone repeat... Maybe even too many times, but I was determined to not screw this up!!!. As a final check I decided to make sure that all was well and hand screwed the bolt in to make sure that it went in smoothly. I used the same bolt on three holes and it went in pretty dang smooth. The third one was nearly all the way in (about 1/8" less than all the way in (simulating prop flange thickness)) and then it got stuck!! I thought surely it can't really be stuck, I'm not cross threaded and it went in smooth. So I got out my wrench to back it out. Now it's stuck enough that it turns over the engine and I don't have the prop flange on so it's tricky to keep the engine from turning over. I only have two theories as to how this could have happened. 1) A little bit of steel from my brush has lodged itself in between the threads??? 2) The cleaning action of my steel brush rounded off the threads a bit and is causing an extremely tight fit? 3) The loctite 620 that I thought was completely cleaned off was actually still there in a residual form and the acetone that I thought was dry was still a little wet and reactivated the 620?? This one is a long shot. As I really cleaned these puppies. I need help and worst case scenarios here. I am going to have nightmares about having to replace a crankshaft on account of this. What would a good machinist do to get this thing out? -------- One Rivet at a Time! Read this topic online here: http://forums.matronics.com/viewtopic.php?p=288699#288699 ------------------------------------------------------------------------------------- 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.