---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Sat 05/09/09: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:33 PM - 912 One cylinder running rich (peteohms) 2. 03:39 PM - Re: AN Banjo fittings (Paul McAllister) 3. 04:02 PM - Re: 912 one cylinder running rich (william sullivan) 4. 08:01 PM - Re: 912 One cylinder running rich (Roger Lee) ________________________________ Message 1 _____________________________________ Time: 03:33:10 PM PST US Subject: RotaxEngines-List: 912 One cylinder running rich From: "peteohms" I just replaced the plugs on my 912 and the two plugs on the left front cylinder were black. The rest were normal. (+/-436 hours on the engine) I tried to remove the valve cover but the wrench just bent. Two questions: 1) What would cause the one cylinder to run rich? 2) How should I go about getting the bolt loose on the valve cover without stripping the allen head or breaking the allen wrench? -------- Pete Hell Paso, TX Kitfox III, 912ul, Grove Read this topic online here: http://forums.matronics.com/viewtopic.php?p=243313#243313 ________________________________ Message 2 _____________________________________ Time: 03:39:44 PM PST US From: Paul McAllister Subject: Re: RotaxEngines-List: AN Banjo fittings Hi Ron. Any idea what the AN Banjo and AN Oil pump adapter cost ? Paul ___________________________________________________ Perhaps this will help. Ron Parigoris Dear ROAN subscriber, Rotax has released Revised Service Instructions listed below. Within these Service Documents, changes and additions introduced with these revisions are indicated by double vertical bars on the left hand page margins. SI-912-003-R2 / 914-005-R2 Oil line connections with UNF-threads (AN-8) for Rotax Engine Type 912 and 914 (Series) ________________________________ Message 3 _____________________________________ Time: 04:02:23 PM PST US From: william sullivan Subject: RotaxEngines-List: Re: 912 one cylinder running rich - To get the Allen screw out, take a soft punch- aluminum or brass- and g ive it a couple of taps with a small hammer.- That should shake it loose. - Or, go to your local auto parts store to the K-D tool rack and get an i mpact driver.- Cheap and effective, but you need a set of 3/8" drive-me tric Allen wrenches.- Good luck. - ------------------------- --------------- Bill Sullivan ------------------------- --------------- Windsor Locks, Ct. ------------------------- --------------- Kolb Firestar, 447- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ________________________________ Message 4 _____________________________________ Time: 08:01:56 PM PST US Subject: RotaxEngines-List: Re: 912 One cylinder running rich From: "Roger Lee" Hi Pete, Bill is right about a few taps. Have someone put a little pressure on the screw and while he is trying to turn it just tap it with something like a brass or aluminum rod a time or two right on the edge of the screw. It will come loose. The different lengths in the intake manifolds combined with idle rpms can cause the black sooty plugs at times. It is very common and goes away when you are at higher rpms like cruise. I wouldn't lose any sleep over it. I wouldn't take the valve cover off unless there is a real need. It is an "O" ring seal and sometimes won't seal tight again and will ooze oil. Then you need to replace the "O" ring. A set of 4 valve cover "O" rings may not be quite as cheap as you might think. $28 each plus $5 for the small "O" ring for the screw itself. -------- Roger Lee Tucson, Az. Light Sport Repairman - Maintenance Rated Rotax Service Center 520-574-1080 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=243356#243356 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rotaxengines-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RotaxEngines-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/rotaxengines-list Browse Digests http://www.matronics.com/digest/rotaxengines-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.