---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Sun 08/08/10: 10 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:14 AM - Manuals (william sullivan) 2. 05:19 AM - Re: Engine running rough at 3400 RPM and above (Malcolm Ferguson) 3. 05:32 AM - Re: Engine running rough at 3400 RPM and above (Catz631@aol.com) 4. 05:39 AM - Re: Key West Regulator on 503 Rotax (Tom Jones) 5. 06:19 AM - You don't know what's inside? Well have a look. (Roger Lee) 6. 07:09 AM - Re: Re: Key West Regulator on 503 Rotax (Richard Girard) 7. 11:32 AM - Re: Manuals (rparigor@suffolk.lib.ny.us) 8. 06:11 PM - Re: 91X ignition shields (Noel Loveys) 9. 06:36 PM - Re: Out-dated? (Noel Loveys) 10. 10:19 PM - Re: Engine running rough at 3400 RPM and above (rparigor@suffolk.lib.ny.us) ________________________________ Message 1 _____________________________________ Time: 05:14:57 AM PST US From: william sullivan Subject: RotaxEngines-List: Manuals - Fergus- The Rotax factory site still works, it's the other one that wen t down.- All manuals are available at: www.rotaxflyingclub.com - - Still free.- Explore the site. - ------------------------- ---------- Bill Sullivan ------------------------- ---------- Windsor Locks, Ct. ------------------------- ---------- Kolb FS 447 ________________________________ Message 2 _____________________________________ Time: 05:19:13 AM PST US From: "Malcolm Ferguson" Subject: Re: RotaxEngines-List: Engine running rough at 3400 RPM and above If anyone pulls gearbox off, a must do is to check the torque on the crankshaft gear. Requires a deep 41mm socket or 1and 5/8". Rotax mechanic showed me a crankshaft that had the splines trashed by a loose gear. Will produce vibrations you can't cure otherwise. Even gave me a new belville washer in anticipation I would find mine loose - I did. He had seen enough of them loose that a torque check was mandatory if the gearbox was off. If below torque the nut must come off and a careful check of the striations on the bellville washer will show if there had been any movement. If any shine on the striations a new washer is a must(and loctite). When swinging on the end of the torque wrench, I remember thinking about the "agony" the little crankshaft locking pin was going through. Malcolm Ferguson ________________________________ Message 3 _____________________________________ Time: 05:32:14 AM PST US From: Catz631@aol.com Subject: Re: RotaxEngines-List: Engine running rough at 3400 RPM and above Ron, Thanks for your reply. It seems we may have captured this problem. Yesterday (in 106 degree heat) we removed the Warp propellor and installed the lighter Kiev and after much "tweaking " of the pitch were able to get a nice 'turbine smooth" engine. I hope this will last and that the Owner of the Paradise P-1 will be happy. We (the AI and I) have sure worked hard to try and find out the reason forthe vibration.(pitch,tracking checked out fine on the Warp) The tech at Lockwoodstatet to me that they had had a similar problem on another aircraft in the past. They almost tore an engine down trying to chase it but as a last effort replaced the prop and that was it! I intend on using my new balancer(thanks to Roger) to check out the Warp. The mystery is how it occurred. The plane was on a cross country from Montana to Pensacola, Fl and was running fine until over Mississippi and then the vibration started. We will probably pull the blades and look at the hub, blade ends. do a dye penetrent check for cracks,etc I am not totally convinced the prop is the problem but time will tell. The only other time I have run into this type of a problem was on an Aerotrec (former Euro Fox) based in the mountains of NC. The owner of the aircraft had a rough runner at cruise and we did everything to smooth it but nothing worked. The plane only had 40 hrs since new and everything was spot on ! (carb sync, cable movement,swivel nuts,ignition,etc) I told the owner that the only thing left was the prop but neither one of us could believe that was the problem. It was new out of the factory properly pitched,etc. I had to return from my vacation in NC and could no longer help him. He called the factory and they came down, replaced the prop and problem solved. Seems this was one of 3 that were defective. So, it does happen. Dick Maddux 912UL Milton,Fl ________________________________ Message 4 _____________________________________ Time: 05:39:54 AM PST US Subject: RotaxEngines-List: Re: Key West Regulator on 503 Rotax From: "Tom Jones" > As I said, I run a capacitor of this size on my Key West regulated 582 for the reasons stated, "to flatten voltage" (I guess this is Austro German manual speak for cleaning up the regulator output. :-} ). Adding a second layer of protection to protect the Key West is just the icing on the cake. Rick, I know what you mean about the Rotax manual translation. Sometimes it is not readily apparent what it is saying. My key west seems to be operating well to charge the battery. My kit fox is pretty bare bones. The only electrical accessory is the starter. My radio is a hand held not hardwired to the planes electrical system. I did notice more that normal static from received transmissions last flight but attributed it to the sender having a bad radio. I will install the capacitor if that continues. Thanks for the suggestion. -------- Tom Jones Classic IV 503 Rotax, 72 inch Two blade Warp Ellensburg, WA Read this topic online here: http://forums.matronics.com/viewtopic.php?p=307908#307908 ________________________________ Message 5 _____________________________________ Time: 06:19:59 AM PST US Subject: RotaxEngines-List: You don't know what's inside? Well have a look. From: "Roger Lee" Hi Guys, I just happen to get a hold of a Rotax fuel pump and a Rotax oil pressure sender and I just couldn't resist the urge to explore. So out comes the saw and presto the guts are exposed. If you look close on the oil pressure sender you can see a plunger just under the center of the main arm and when pressure pushes on it it in turn moves the arm, which is held down by a spring until the pressure pushes and that moves the rheostat lever which changes the resistance which is then calibrated for your oil pressure gauge. Damn this is hard to follow. The next pictures are of a Rotax fuel pump. Once the housing is removed you can see an inner plate that has a screen mounted to it and that screen went up into the outer chamber of the pump. The diaphragm separates the two outer chambers where they meet the pump aluminum mount. (It is where the gold metal meets the aluminum.) The fuel is sucked into the inner chamber by the motion of the diaphragm and as the diaphragm pushes back up the one way valve that the screen sits on closes and the fuel is then forced out the output side of the pump. There is another picture of just the diaphragm still in the aluminum pump housing. The inlet to the pump is the larger of the two nozzels mounted on the pump. The fuel out nozzle is the smaller of the two nozzles. If none of this makes any since, it didn't to me either and I typed it.:unsure: -------- Roger Lee Tucson, Az. Light Sport Repairman - Maintenance Rated Rotax Repair Center 520-574-1080 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=307910#307910 Attachments: http://forums.matronics.com//files/cut_rotax_fuel_filter_743.pdf http://forums.matronics.com//files/cut_rotax_oil_sender_175.pdf ________________________________ Message 6 _____________________________________ Time: 07:09:13 AM PST US Subject: Re: RotaxEngines-List: Re: Key West Regulator on 503 Rotax From: Richard Girard Tom, Happy to help. You can repay me if you wish by taking a flight over the ridges in to the Yakima River Valley. I lived on the west side of the Cascades for 28 years. Yeah, I was one of those dreaded 206ers. :-} When I got my private ticket my flying club required a mountain checkout ride with an instructor to be able to take a club airplane through Snoqualmie pass over to Ellensberg. That checkout was the only time I ever made it. I always wanted to make that flight up over the Umptanum (sp?) ridges and passes. I thought a return trip through White Pass back out to Centralia would be a lot of fun, too. Now that I've moved back to Kansas I probably won't ever get to do it. Oh, well. Hope you have fun with the Kitfox, it's almost as cool as a Kolb Mk III. :-} Rick On Sun, Aug 8, 2010 at 7:39 AM, Tom Jones wrote: > > > > As I said, I run a capacitor of this size on my Key West regulated 582 > for the reasons stated, "to flatten voltage" (I guess this is Austro German > manual speak for cleaning up the regulator output. :-} ). Adding a second > layer of protection to protect the Key West is just the icing on the cake. > > > Rick, I know what you mean about the Rotax manual translation. Sometimes > it is not readily apparent what it is saying. > > My key west seems to be operating well to charge the battery. My kit fox > is pretty bare bones. The only electrical accessory is the starter. My > radio is a hand held not hardwired to the planes electrical system. > > I did notice more that normal static from received transmissions last > flight but attributed it to the sender having a bad radio. I will install > the capacitor if that continues. Thanks for the suggestion. > > -------- > Tom Jones > Classic IV > 503 Rotax, 72 inch Two blade Warp > Ellensburg, WA > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=307908#307908 > > ________________________________ Message 7 _____________________________________ Time: 11:32:33 AM PST US Subject: Re: RotaxEngines-List: Manuals From: rparigor@suffolk.lib.ny.us Hi Ferg FWIW i uploaded all 914 manuals here: http://www.europaowners.org/forums/gallery2.php?g2_itemId=81230 Ron Parigoris ________________________________ Message 8 _____________________________________ Time: 06:11:25 PM PST US From: "Noel Loveys" Subject: RE: RotaxEngines-List: 91X ignition shields The industry standard is to ground the shield at the source end only. Grounding at both ends makes the coax an inductor. Noel -----Original Message----- From: owner-rotaxengines-list-server@matronics.com [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of rparigoris Sent: August 6, 2010 9:08 PM Subject: RotaxEngines-List: 91X ignition shields The older schematics I have for my 914 shows to ground the ignition shutoff wire shields at both ends, the engine side and panel side. I think I may remember seeing Rotax rethought this? Question is should I ground shields at both ends? Thx. Ron Parigoris Read this topic online here: http://forums.matronics.com/viewtopic.php?p=307813#307813 ________________________________ Message 9 _____________________________________ Time: 06:36:02 PM PST US From: "Noel Loveys" Subject: RE: RotaxEngines-List: Out-dated? Try googleing ROAN or Ultralightnews. Both places have manuals online free. Noel From: owner-rotaxengines-list-server@matronics.com [mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of Fergus Kyle Sent: August 7, 2010 12:19 PM Subject: RotaxEngines-List: Out-dated? I must be in another world. I googled Rotax, got "The sky is the limit" and that sent me to another URL but what happened to the Parts manuals? Am I no longer worthy of service or must I join and pay for them now? Any advice particularly welcome........ Cheers, Ferg ________________________________ Message 10 ____________________________________ Time: 10:19:40 PM PST US Subject: Re: RotaxEngines-List: Engine running rough at 3400 RPM and above From: rparigor@suffolk.lib.ny.us Hi Dick Here is a nice rundown of some causes of viabration: http://www.rotaxservice.com/rotax_tips/rotax_vibration.htm Ron Parigoris ------------------------------------------------------------------------------------- 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.