---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Tue 12/15/09: 18 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:09 AM - Re: Kolb-List Digest: 0 Msgs - 12/14/09 (Ted Woodill) 2. 08:34 AM - Re: Re: Kolb-List Digest: 0 Msgs - 12/14/09 (russ kinne) 3. 08:49 AM - Trailer (william sullivan) 4. 08:49 AM - New 912 TBO (John Hauck) 5. 08:52 AM - Rotax Increases 912 TBO (John Hauck) 6. 09:20 AM - Re: New 912 TBO (Herb) 7. 09:33 AM - Re: New 912 TBO (John Hauck) 8. 09:45 AM - Re: New 912 TBO (robert bean) 9. 03:42 PM - Rotax 912 Question (Rick Lewis) 10. 04:36 PM - Re: Rotax 912 Question (John Hauck) 11. 04:58 PM - Re: Rotax 912 Question (Rick Lewis) 12. 05:03 PM - Re: Rotax 912 Question (purplemoon99@bellsouth.net) 13. 05:13 PM - Re: Rotax 912 Question (Rick Lewis) 14. 05:46 PM - Re: Rotax 912 Question (Roger Lee) 15. 05:48 PM - Re: New 912 TBO (Roger Lee) 16. 06:14 PM - Re: Re: Rotax 912 Question (John Hauck) 17. 07:16 PM - Re: Trailer (racerjerry) 18. 08:05 PM - Re: Tire Balance (racerjerry) ________________________________ Message 1 _____________________________________ Time: 07:09:24 AM PST US Subject: Kolb-List: Re: Kolb-List Digest: 0 Msgs - 12/14/09 From: Ted Woodill I have been a lurker on this site for a couple of years, I have developed a cockpit adjustable trim tab system for FS & FSll kolb. It is bolt on, no welding and it work like a dream. Any one interested in the kit reply off site for prices. tedwoodill@gmail.com On Mon, Dec 14, 2009 at 11:57 PM, Kolb-List Digest Server wrote: > * > > ================================================= > Online Versions of Today's List Digest Archive > ================================================= > > Today's complete Kolb-List Digest can also be found in either of the > two Web Links listed below. The .html file includes the Digest formatted > in HTML for viewing with a web browser and features Hyperlinked Indexes > and Message Navigation. The .txt file includes the plain ASCII version > of the Kolb-List Digest and can be viewed with a generic text editor > such as Notepad or with a web browser. > > HTML Version: > > http://www.matronics.com/digest/digestview.php?Style=82701&View=html&Chapter 09-12-14&Archive=Kolb > > Text Version: > > http://www.matronics.com/digest/digestview.php?Style=82701&View=txt&Chapter 09-12-14&Archive=Kolb > > > =============================================== > EMail Version of Today's List Digest Archive > =============================================== > > > ---------------------------------------------------------- > Kolb-List Digest Archive > --- > Total Messages Posted Mon 12/14/09: 0 > ---------------------------------------------------------- > > > Today's Message Index: > ---------------------- > > ________________________________ Message 2 _____________________________________ Time: 08:34:55 AM PST US From: russ kinne Subject: Re: Kolb-List: Re: Kolb-List Digest: 0 Msgs - 12/14/09 Ted Can we see a picture of this? ________________________________ Message 3 _____________________________________ Time: 08:49:11 AM PST US From: william sullivan Subject: Kolb-List: Trailer - I am building a transport trailer similar to Scott Olendorf's.- Could anyone give me their max dimensions for outside the tires on their aircraf t?- Any models will do, as I want to make it as- flexible as possible. - I have Jack Hart's measurements, as well as mine.- I realise they wil l vary according to landing gear length, brakes, tire size, and wheel pants .- - Also, a measurement from the main tires back to the end of the folded w ings.- No rush- this is a winter project, weather permitting.- I alread y have an older boat trailer, and have extended the tongue.- Now it's tim e for the deck, ramps, boom support, and tie downs. - Tentatively, I am going to set it up for a 60" wheel width, but if some one else in the area needed it it would be nice to be able to use it for ot her than a Firestar. - ------------------------- ------------------------- ----- Bill Sullivan ------------------------- ------------------------- ----- Windsor Locks, Ct. ------------------------- ------------------------- ----- FS 447 ________________________________ Message 4 _____________________________________ Time: 08:49:21 AM PST US From: "John Hauck" Subject: Kolb-List: New 912 TBO Morning Gang: I sent this one a couple hours ago. Must have gotten lost in cyber space. Rotax has announced new TBO, by serial number, the the 912 series engines: Eric Tucker, the founder of Rotax Flying Club and developer of training programs for Rotax Aircraft Engines, said "The upgrading of components within the engine, and the significant improvements within the past few years, shows a commitment and faith in the light aircraft community. With LSA category aircraft becoming more accepted worldwide the increase in TBO helps owners and operators using Rotax Aircraft Engines get the best value in propulsion. 20 years ago this year Rotax put the 4 stroke 9 series on the market, with a 600 hour TBO, today the 2000 mark is a milestone that is welcome and deserved." http://www.rotax-owner.com/SI_TB_Info/ServiceB/SB-912-057-UL.pdf john h mkIII ________________________________ Message 5 _____________________________________ Time: 08:52:47 AM PST US From: "John Hauck" Subject: Kolb-List: Rotax Increases 912 TBO Morning Gang: Aero News Network has the following info this morning. Eric Tucker, the founder of Rotax Flying Club and developer of training programs for Rotax Aircraft Engines, said "The upgrading of components within the engine, and the significant improvements within the past few years, shows a commitment and faith in the light aircraft community. With LSA category aircraft becoming more accepted worldwide the increase in TBO helps owners and operators using Rotax Aircraft Engines get the best value in propulsion. 20 years ago this year Rotax put the 4 stroke 9 series on the market, with a 600 hour TBO, today the 2000 mark is a milestone that is welcome and deserved." http://www.rotax-owner.com/SI_TB_Info/ServiceB/SB-912-057-UL.pdf john h mkIII ________________________________ Message 6 _____________________________________ Time: 09:20:14 AM PST US From: Herb Subject: Re: Kolb-List: New 912 TBO Strange that the 912 gearbox has a 2k hr tbo while similar gearboxes on 2 strokers have much less! Herb At 10:48 AM 12/15/2009, you wrote: > >Morning Gang: > >I sent this one a couple hours ago. Must have gotten lost in cyber space. > >Rotax has announced new TBO, by serial number, the the 912 series engines: > >Eric Tucker, the founder of Rotax Flying Club and developer of training >programs for Rotax Aircraft Engines, said "The upgrading of components >within the engine, and the significant improvements within the past few >years, shows a commitment and faith in the light aircraft community. With >LSA category aircraft becoming more accepted worldwide the increase in TBO >helps owners and operators using Rotax Aircraft Engines get the best value >in propulsion. 20 years ago this year Rotax put the 4 stroke 9 series on >the market, with a 600 hour TBO, today the 2000 mark is a milestone that is >welcome and deserved." > > >http://www.rotax-owner.com/SI_TB_Info/ServiceB/SB-912-057-UL.pdf > >john h > >mkIII > > >Checked by AVG - www.avg.com >12/15/09 07:52:00 ________________________________ Message 7 _____________________________________ Time: 09:33:41 AM PST US From: "John Hauck" Subject: Re: Kolb-List: New 912 TBO > Strange that the 912 gearbox has a 2k hr tbo while similar gearboxes > on 2 strokers have much less! Herb Don't know why, for sure. -Pressure lube -Much heavier contruction. ??? john h mkIII ________________________________ Message 8 _____________________________________ Time: 09:45:01 AM PST US Subject: Re: Kolb-List: New 912 TBO From: robert bean It may be a matter of harmonics or some other difference in stress imposed by 2 stroke vs four cylinders. The 912 runs pretty smooth. BB On 15, Dec 2009, at 12:15 PM, Herb wrote: > > Strange that the 912 gearbox has a 2k hr tbo while similar gearboxes on 2 strokers have much less! Herb > > > At 10:48 AM 12/15/2009, you wrote: >> >> Morning Gang: >> >> I sent this one a couple hours ago. Must have gotten lost in cyber space. >> >> Rotax has announced new TBO, by serial number, the the 912 series engines: >> >> Eric Tucker, the founder of Rotax Flying Club and developer of training >> programs for Rotax Aircraft Engines, said "The upgrading of components >> within the engine, and the significant improvements within the past few >> years, shows a commitment and faith in the light aircraft community. With >> LSA category aircraft becoming more accepted worldwide the increase in TBO >> helps owners and operators using Rotax Aircraft Engines get the best value >> in propulsion. 20 years ago this year Rotax put the 4 stroke 9 series on >> the market, with a 600 hour TBO, today the 2000 mark is a milestone that is >> welcome and deserved." >> >> >> >> http://www.rotax-owner.com/SI_TB_Info/ServiceB/SB-912-057-UL.pdf >> >> john h >> >> mkIII >> >> >> >> >> >> >> >> >> Checked by AVG - www.avg.com >> 12/15/09 07:52:00 > > > > > ________________________________ Message 9 _____________________________________ Time: 03:42:11 PM PST US Subject: Kolb-List: Rotax 912 Question From: "Rick Lewis" I need to know if the Rotax 912 has a thermostat in the water system. I'm thinking I will need one in my water cooled VW installation. I have found on line someone who sells an inline thermostat housing. It's a little pricey so I may build what I need myself. Rick Lewis ( Water Cooled VW ) Read this topic online here: http://forums.matronics.com/viewtopic.php?p=277662#277662 ________________________________ Message 10 ____________________________________ Time: 04:36:34 PM PST US From: "John Hauck" Subject: Re: Kolb-List: Rotax 912 Question > I need to know if the Rotax 912 has a thermostat in the water system. I'm thinking I will need one in my water cooled VW installation. I have found on line someone who sells an inline thermostat housing. It's a little pricey so I may build what I need myself. > > > Rick Lewis Rick L/Gang: Very difficult to use a thermostat on the cooling system because the water pump has 4 outlets, one for each cylinder head. To design a thermostat system for the 912 would require 4 thermostats. That is too busy for me. I want to keep everything as simple as possible. We fabricated an inline thermostat housing, aluminum billet, for my 912 because it was very difficult to keep the CHT up to around 180F. The engine performs much better at 180F and higher, if you can get it there during cold weather. The thermostat was installed in the 1" return line to the single water pump inlet. It worked ok, with the exception of blowing coolant out of the coolant header tank. Was not the right system. We used a thermostat for a 350 Chevy. If we had had three more to install on all four coolant outlet hoses, it would have worked fine. To get around the low temp problem, in the winter months, with the 912UL engine, which normally runs much cooler than the 912ULS, I bypassed the engine oil cooler. That exercise required swapping two hoses. Kept the CHT and engine oil temps up where they belonged. The 912 has to reach at least 190F engine oil temp in order to boil off condensation in the oil system. Some folks have used an aftermarket engine oil thermostat, but that gets a little complicated and does not perform as expected. I let others test that system. I am not interested in experiementing with it. To get the temps up on my current 912ULS, I tape a couple wraps of gaffers tape on each end of the coolant radiator. This will bring the CHT and engine oil temps up to normal operating range. john h mkIII - Suffering from severe cabin fever. Sun is supposed to shine tomorrow and Gantt International Airport will be operational. I'm gonna fly a little. ________________________________ Message 11 ____________________________________ Time: 04:58:10 PM PST US Subject: Kolb-List: Re: Rotax 912 Question From: "Rick Lewis" Thanks John, this information helps. I feel I will have to install some kind of thermostat in my system. This can more easily be accomplished on this with only two thermostats installed. Thanks John Read this topic online here: http://forums.matronics.com/viewtopic.php?p=277670#277670 ________________________________ Message 12 ____________________________________ Time: 05:03:18 PM PST US From: "purplemoon99@bellsouth.net" Subject: Re: Kolb-List: Rotax 912 Question Rick,goto info@ramengines.com- Ron has some BMW thermo.that will work inl ine in the main hose--- Joe N101HD-- =0A=0A=0A=0A=0A_____________ ___________________=0AFrom: Rick Lewis =0ATo: kolb-list@ matronics.com=0ASent: Tue, December 15, 2009 6:41:23 PM=0ASubject: Kolb-Lis ktman@hughes.net>=0A=0AI need to know if the Rotax 912 has a thermostat in the water system.- I'm thinking I will need one in my water cooled VW ins tallation.- I have found on line someone who sells an inline thermostat h ousing.- It's a little pricey so I may build what I need myself.- =0A =0A=0ARick Lewis=0A=0A( Water Cooled VW )=0A=0A=0A=0A=0ARead this topic onl ine here:=0A=0Ahttp://forums.matronics.com/viewtopic.php?p=277662#277662 - - - - - - - - - - - - - - - -Matt Dralle, L =========================0A ==================== ________________________________ Message 13 ____________________________________ Time: 05:13:42 PM PST US Subject: Kolb-List: Re: Rotax 912 Question From: "Rick Lewis" The link you have posted do not take me anywhere except an e-mail page. I would like to check this site out if you can send me a good link to go to. Thanks Rick Lewis Read this topic online here: http://forums.matronics.com/viewtopic.php?p=277673#277673 ________________________________ Message 14 ____________________________________ Time: 05:46:48 PM PST US Subject: Kolb-List: Re: Rotax 912 Question From: "Roger Lee" They have thermostats and they are set to 180F. It has one inlet and it goes where all the lines are a single line at the radiator. FD has been using them for 3 years. -------- 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=277676#277676 ________________________________ Message 15 ____________________________________ Time: 05:48:08 PM PST US Subject: Kolb-List: Re: New 912 TBO From: "Roger Lee" It is harmonics/vibration and different internal parts in the 912 are stronger. -------- 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=277677#277677 ________________________________ Message 16 ____________________________________ Time: 06:14:15 PM PST US From: "John Hauck" Subject: Re: Kolb-List: Re: Rotax 912 Question > They have thermostats and they are set to 180F. It has one inlet and it goes where all the lines are a single line at the radiator. FD has been using them for 3 years. > > -------- > Roger Lee Roger L/Gang: I placed my thermostat, on my original 912, before they were tagged as UL and ULS, between radiator outlet and waterpump inlet. Had a serious problem blowing water out of the header tank cap because the water pump is overpressurizing the system when the thermostat is closed. How much? I don't know. I did not have a coolant pressure gauge installed, but would be interesting to know how much pressure it was creating above pressure caused by increased coolant temp. This may have also caused cavitation in the water pump. Never could figure out how to solve the problem without putting thermostats between waterpump outlets and header tank. How did FD (?) overcome this overpressurization problem? BTW: Who is FD? john h mkIII ________________________________ Message 17 ____________________________________ Time: 07:16:09 PM PST US Subject: Kolb-List: Re: Trailer From: "racerjerry" 65 inches between outside of tires on my Firestar II Read this topic online here: http://forums.matronics.com/viewtopic.php?p=277688#277688 ________________________________ Message 18 ____________________________________ Time: 08:05:37 PM PST US Subject: Kolb-List: Re: Tire Balance From: "racerjerry" Try to just achieve STATIC wheel balance. You can apply weight at the light point anywhere on the wheel, whether it is on the inside surface (but need brake clearance), outside surface or fabricate steel plate and attach to a wheel thru-bolt (or two). By static balancing only, you can easily do it yourself and can probably get close enough by just hanging the wheel loosely on the axle and letting it rotate to the heavy point - no wheel balancer required. Another possibility, if the tire is way out of balance is to mark the light spot as above and have a tire shop vulcanize one or two hot patches inside the tire to lessen the amount of wheel weights required. Static balancing is the accepted method used on most certified light aircraft. 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