---------------------------------------------------------- Pulsar-List Digest Archive --- Total Messages Posted Wed 12/26/12: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:14 PM - Re: Pulsar-List Digest: 9 Msgs - 12/16/12 (triumphrider) 2. 01:25 PM - Low idle RPM recommendation on Rotax 912 UL? (triumphrider) 3. 02:04 PM - Re: Low idle RPM recommendation on Rotax 912 UL? (Brian Anderson) 4. 02:11 PM - Re: Re: Pulsar-List Digest: 9 Msgs - 12/16/12 (Brian Anderson) 5. 02:14 PM - Re: Low idle RPM recommendation on Rotax 912 UL? (pilot623) 6. 06:47 PM - Re: Low idle RPM recommendation on Rotax 912 UL? (Esa Lehto) ________________________________ Message 1 _____________________________________ Time: 01:14:32 PM PST US Subject: Pulsar-List: Re: Pulsar-List Digest: 9 Msgs - 12/16/12 From: "triumphrider" Thanks for sharing your knowledge and thoughts. As a non-builder, what size/ length of SS Fuel Lines do I need to order for the left and right? It's a Rotax 912 UL. Available at Aircraft Spruce? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=390993#390993 ________________________________ Message 2 _____________________________________ Time: 01:25:27 PM PST US Subject: Pulsar-List: Low idle RPM recommendation on Rotax 912 UL? From: "triumphrider" How low should the low idle speed be adjusted for on the Rotax 912 UL? I had someone help with it and he said 1400 rpm and if I pull the throttle that low, the engine shutters. I usually taxi at around 1800 RPMs. With the reduction gear of the Rotax, perhaps 1400 rpm idle is too low? Engine seems dialed in at cruise and acceleration, but a little rough at low idle, as if the prop is not balanced. I did a few small carbon fiber prop ding repairs and was careful not to overweight one side. Perhaps, I did it inadvertently? It's a Prince P-Tip. Used to purr like a kitten. As the Chinese say, it it's not broken don't fix it? It was adjusted at the conditional inspection. Is protection too much to expect from a 850 hr. engine? Am I asking too much? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=390994#390994 ________________________________ Message 3 _____________________________________ Time: 02:04:25 PM PST US Subject: Re: Pulsar-List: Low idle RPM recommendation on Rotax 912 UL? From: Brian Anderson I think 1400rpm is definitely too low, and at that speed you should expect to get a deal of gearbox chatter. I'm happy with the engine idling at about 1700. Idle should be smooth at that speed if the carbs are properly synchronised. Brian On 27/12/2012, at 10:24 AM, "triumphrider" wrote: > > How low should the low idle speed be adjusted for on the Rotax 912 UL? > I had someone help with it and he said 1400 rpm and if I pull the throttle that low, the engine shutters. I usually taxi at around 1800 RPMs. With the reduction gear of the Rotax, perhaps 1400 rpm idle is too low? > > Engine seems dialed in at cruise and acceleration, but a little rough at low idle, as if the prop is not balanced. I did a few small carbon fiber prop ding repairs and was careful not to overweight one side. Perhaps, I did it inadvertently? It's a Prince P-Tip. Used to purr like a kitten. As the Chinese say, it it's not broken don't fix it? It was adjusted at the conditional inspection. Is protection too much to expect from a 850 hr. engine? Am I asking too much? > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=390994#390994 > > > > > > > > > > ________________________________ Message 4 _____________________________________ Time: 02:11:01 PM PST US From: Brian Anderson Subject: Re: Pulsar-List: Re: Pulsar-List Digest: 9 Msgs - 12/16/12 See my .ppt posting to the Pulsar Aviators group on Yahoo. Fuel Smell.PPT This gives some part numbers but the length and end fittings will be a custom fit, depending on how the builder did the installation. The teflon fuel lines used are from Earls, but there is an equivalent Aeroquip line that Aircraft Spruce can supply. Brian On 27/12/2012, at 10:13 AM, "triumphrider" wrote: > > Thanks for sharing your knowledge and thoughts. As a non-builder, what size/ length of SS Fuel Lines do I need to order for the left and right? It's a Rotax 912 UL. Available at Aircraft Spruce? > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=390993#390993 > > > > > > > > > > ________________________________ Message 5 _____________________________________ Time: 02:14:05 PM PST US From: "pilot623" Subject: RE: Pulsar-List: Low idle RPM recommendation on Rotax 912 UL? I agree that 1400 is too low. I usually idle at 2000 to avoid the gearbox chatter issue. Jim -----Original Message----- From: owner-pulsar-list-server@matronics.com [mailto:owner-pulsar-list-server@matronics.com] On Behalf Of Brian Anderson Sent: Wednesday, December 26, 2012 4:04 PM Subject: Re: Pulsar-List: Low idle RPM recommendation on Rotax 912 UL? I think 1400rpm is definitely too low, and at that speed you should expect to get a deal of gearbox chatter. I'm happy with the engine idling at about 1700. Idle should be smooth at that speed if the carbs are properly synchronised. Brian On 27/12/2012, at 10:24 AM, "triumphrider" wrote: > --> > > How low should the low idle speed be adjusted for on the Rotax 912 UL? > I had someone help with it and he said 1400 rpm and if I pull the throttle that low, the engine shutters. I usually taxi at around 1800 RPMs. With the reduction gear of the Rotax, perhaps 1400 rpm idle is too low? > > Engine seems dialed in at cruise and acceleration, but a little rough at low idle, as if the prop is not balanced. I did a few small carbon fiber prop ding repairs and was careful not to overweight one side. Perhaps, I did it inadvertently? It's a Prince P-Tip. Used to purr like a kitten. As the Chinese say, it it's not broken don't fix it? It was adjusted at the conditional inspection. Is protection too much to expect from a 850 hr. engine? Am I asking too much? > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=390994#390994 > > > > > > > > > > ________________________________ Message 6 _____________________________________ Time: 06:47:15 PM PST US From: Esa Lehto Subject: Re: Pulsar-List: Low idle RPM recommendation on Rotax 912 UL? Hi=0A-=0AMy idle speed is set as well to 2000 rpm.=0A-=0AEsa-=0A=0A =0A________________________________=0AFrom: pilot623 =0ATo: pulsar-list@matronics.com =0ASent: Wednesday, December 26, 2012 2:13 PM=0ASubject: RE: Pulsar-List: Low idle RPM recommendation on Rotax 912 UL =0A=0AI agree that 1400 is too low. I usually idle at 2000 to avoid the gea rbox=0Achatter issue.=0A=0AJim =0A=0A-----Original Message-----=0AFrom: own er-pulsar-list-server@matronics.com=0A[mailto:owner-pulsar-list-server@matr onics.com] On Behalf Of Brian Anderson=0ASent: Wednesday, December 26, 2012 4:04 PM=0ATo: pulsar-list@matronics.com=0ASubject: Re: Pulsar-List: Low id le RPM recommendation on Rotax 912 UL?=0A=0A--> Pulsar-List message posted by: Brian Anderson =0A=0AI think 1400rpm is definitely t oo low, and at that speed you should expect=0Ato get a deal of gearbox chat ter.- I'm happy with the engine idling at about=0A1700. Idle should be sm ooth at that speed if the carbs are properly=0Asynchronised.=0A=0ABrian=0A =0A=0AOn 27/12/2012, at 10:24 AM, "triumphrider"=0A --> =0A> =0A> How low should t he low idle speed be adjusted for on the Rotax 912 UL?=0A> I had someone he lp with it and he said 1400 rpm and if I pull the throttle=0Athat low, the engine shutters. I usually taxi at around 1800 RPMs. With the=0Areduction g ear of the Rotax, perhaps 1400 rpm idle is too low?=0A> =0A> Engine seems d ialed in at cruise and acceleration, but a little rough at=0Alow idle, as i f the prop is not balanced. I did a few small carbon fiber=0Aprop ding repa irs and was careful not to overweight one side. Perhaps, I did=0Ait inadver tently? It's a Prince P-Tip. Used to purr like a kitten. As the=0AChinese s ay, it it's not broken don't fix it? It was adjusted at the=0Aconditional i nspection. Is protection too much to expect from a 850 hr.=0Aengine? Am I a sking too much?=0A> =0A> =0A> =0A> =0A> Read this topic online here:=0A> =0A> http://forums.matronics.com/viewtopic.php?p=390994#390994=0A> =0A> ============== ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message pulsar-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Pulsar-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/pulsar-list Browse Digests http://www.matronics.com/digest/pulsar-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.