---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Fri 07/05/13: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:19 AM - Re: Engine run on when trying to stop. (FLYaDIVE) 2. 03:11 PM - Re: Engine run on when trying to stop. (Alan Carter) ________________________________ Message 1 _____________________________________ Time: 04:19:44 AM PST US Subject: Re: RotaxEngines-List: Engine run on when trying to stop. From: FLYaDIVE I swear, I have never heard of an engine with more reported issues than the ROTAX. I was once told: "It is not the engine, it is the operators." But, even then, shouldn't ROTAX design an engine to be at least somewhat idiot proof? My professor once said: The only way to make something idiot proof is to remove the idiot. But, even then - Fifty million Frenchmen can't be wrong! *Barry* On Thu, Jul 4, 2013 at 11:36 AM, wrote: > ** > Dennis, > I have had this problem for about a year (or more) now. I have done the > carbs,gearbox shimming,fuel additives,new plugs,bore scoping cylinders for > carbon deposits,high octane boosters/gas,shut down at higher rpms,gone to a > lighter prop( which helped a little),etc..you name it I have done it ALL to > no avail.( I thought I was the only one in the country with this problem) > Now when my engine diesels ,it turns backwards about 3-6 revolutions.( my > theory is that the prop stops at the peak of the"dogs" in the gearbox and > it flips the prop backwards) As a result ,I have to do the valve check to > make sure I don't have any air ingestion in the lifters (I have done it at > least a dozen times and can do this check in my sleep now) I have never > found any air, at least according to the tappet clearance check Rotax > specifies. > I thought about using Velcro to attach my cowl as it would come off easier > during these checks ! (lol) > However, I have not had this problem in the last few months because I have > used a different shutdown method and it appears to be working well. > I now pull the throttle back to about 1500 rpm,shut off one mag then pull > further back to about 1000-1100 rpm then shut off the other mag. This seems > to have solved my problem, even with a warm engine (mine never really gets > hot in my radial nosed Kitfox) > Prior to this method I would shut down at around 1800 rpm and then I > might get the diseling on occasion. > I know the gearbox doesn't like low rpm's but you are only there for a > very short time before the engine quits. > Give this a shot and see if it works for you. > Please let us know. > Dick Maddux > 912 UL (400 hrs tt) > ________________________________ Message 2 _____________________________________ Time: 03:11:55 PM PST US Subject: RotaxEngines-List: Re: Engine run on when trying to stop. From: "Alan Carter" Hi Barry. I tend to agree with you, at 28000 to 30000 I expect better, they seem to have got this wonderful reputation, but they are not so wonderful in my opinion for that sort of money, but I guess there's not a lot of choice out there. Alan Read this topic online here: http://forums.matronics.com/viewtopic.php?p=404010#404010 ------------------------------------------------------------------------------------- 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.