---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Tue 01/27/09: 19 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:21 AM - Check your Horiz. Stblzr bolts (Jimmy Young) 2. 07:16 AM - Re: Check your Horiz. Stblzr bolts (John Hauck) 3. 09:17 AM - Re: Check your Horiz. Stblzr bolts (Jimmy Young) 4. 09:43 AM - Re: Re: Check your Horiz. Stblzr bolts (John Hauck) 5. 10:39 AM - New Engine at Sebring (Richard & Martha Neilsen) 6. 10:39 AM - Re: Check your Horiz. Stblzr bolts (JetPilot) 7. 11:03 AM - Re: A few photos (R. Hankins) 8. 11:48 AM - Re: Check your Horiz. Stblzr bolts (Jimmy Young) 9. 11:57 AM - greaseburger run (robert bean) 10. 12:11 PM - Re: HKS readings for the day (boyd) 11. 12:19 PM - Re: Re: Check your Horiz. Stblzr bolts (John Hauck) 12. 12:55 PM - Greasing bolts and fittings (Richard Girard) 13. 01:08 PM - (Nelson, Craig) 14. 01:38 PM - Re: HKS readings for the day (Richard Girard) 15. 02:03 PM - Re: Greasing bolts and fittings (herb) 16. 02:40 PM - Re: Greasing bolts and fittings (Richard Girard) 17. 03:25 PM - Re: Greasing bolts and fittings (herb) 18. 05:22 PM - Re: Greasing bolts and fittings (robert bean) 19. 06:09 PM - Re: HKS readings for the day (Larry Cottrell) ________________________________ Message 1 _____________________________________ Time: 06:21:12 AM PST US Subject: Kolb-List: Check your Horiz. Stblzr bolts From: "Jimmy Young" On pre-flight insp. Sunday, I noticed my bolts connecting my horizontal stabilizers to the boom tube had a bit of play in them. Pulled them off and saw the bolt was worn at least 35-40%. Everyone should pull them off and check them, as you can't really see it that well until you pull them out. I checked the rest of my tang bolts going to the tail feathers, and the rest were fine. Seems the bolts at the horiz. stblzrs spin around and grind a groove in them, so be sure and check! -------- Jimmy Young FS II, Generac V-Twin Houston TX area Read this topic online here: http://forums.matronics.com/viewtopic.php?p=227061#227061 ________________________________ Message 2 _____________________________________ Time: 07:16:34 AM PST US From: "John Hauck" Subject: Re: Kolb-List: Check your Horiz. Stblzr bolts > On pre-flight insp. Sunday, I noticed my bolts connecting my horizontal stabilizers to the boom tube had a bit of play in them. > > -------- > Jimmy Young Jimmy: Most all Kolbs I look at have tail wires that are too loose. I keep mine tight as a fiddle string. I am not happy unless they make a twang when I pluck them. Loose tail wires would allow those 3/16 bolts to spin more than if they were tight. How many hours do you have on them? If the wires are tight, you may have a vibration problem. john h mkIII ________________________________ Message 3 _____________________________________ Time: 09:17:00 AM PST US Subject: Kolb-List: Re: Check your Horiz. Stblzr bolts From: "Jimmy Young" John H wrote: >Loose tail wires would allow those 3/16 bolts to spin more than if they were >tight. >How many hours do you have on them? >If the wires are tight, you may have a vibration problem. Hi John, The 3/16" bolts that wore out are the ones connecting the inboard front part of the horizontal stabilizer to the boom tube. I know they spin a bit. The bolts holding on my flying wires were all fine. I do keep my wires nice and tight. My FS has 298 hrs on the airframe and 79 hrs on my new engine. My main point to everyone was, if you don't pull them and look, you won't know if they are worn. 76 degrees @ 11 am, cold weather is on the way later today. -------- Jimmy Young FS II, Generac V-Twin Houston TX area Read this topic online here: http://forums.matronics.com/viewtopic.php?p=227116#227116 ________________________________ Message 4 _____________________________________ Time: 09:43:34 AM PST US From: "John Hauck" Subject: Re: Kolb-List: Re: Check your Horiz. Stblzr bolts > My main point to everyone was, if you don't pull them and look, you won't know if they are worn. > -------- > Jimmy Young Jimmy: Understand. However, the tail wires control how much pressure is exerted on the front horizontal stabilizer attachment. Along these same line, it is a good idea to check the cable thimbles on the tail wire tangs. As time accumulates on the airframe, the thin edge of the tangs will start to cut through the cable thimble. I changed mine to a different system using different hardware. I put a lot of hours on my Kolb. Found myself changing out tail wires more than I wanted to. Several years ago I designed a new system. Have not had a problem since then. john h mkIII ________________________________ Message 5 _____________________________________ Time: 10:39:11 AM PST US From: "Richard & Martha Neilsen" Subject: Kolb-List: New Engine at Sebring There wasn't much new stuff at Sebring last week but there was a engine on display that looks promising, a Gemini 100. They claim that a production engine will be sold as an option on a factory built LSA by March of this year. The engine is priced to be completive with a Rotax 912ULS and weighs about 18 pounds more. Rated at 100 HP at 4000 RPM for the engine with 2500 Prop RPM. Its kind of a radical engine with two crank shafts, water cooled, two stroke, 6 pistons in three cylinders, burning diesel or Jet A. They are talking about a initial 2000 Hr. TBO then going to 3000 Hrs. I don't see a web site for them. Attached is a scan of their flyer. Rick Neilsen Redrive VW Powered MKIIIC ________________________________ Message 6 _____________________________________ Time: 10:39:54 AM PST US Subject: Kolb-List: Re: Check your Horiz. Stblzr bolts From: "JetPilot" Thanks for the Heads up Jimmy, it could save someones bacon one day. To stop wear, I use Mobil 1 synthetic grease on all those bolts ( Not the threads ! ) where they move against anything. I also get the added benefit that my controls feel like they are on bearings. I do the same with the tail wire thimbles John is talking about, I like Johns tail wire hardware, and will copy it one day. In the mean time make sure there is some grease where the tail wire thimbles contact the tang and I have no noticeable wear in 200 hours or so. Mike -------- "NO FEAR" - If you have no fear you did not go as fast as you could have !!! Kolb MK-III Xtra, 912-S Read this topic online here: http://forums.matronics.com/viewtopic.php?p=227139#227139 ________________________________ Message 7 _____________________________________ Time: 11:03:03 AM PST US Subject: Kolb-List: Re: A few photos From: "R. Hankins" Lanny, Winds were a smooth 3-5kts right down the runway, increasing to about 10kts @8000ft. There were a few slight nudges, but smooth sailing otherwise. -------- Roger in Oregon 1992 KXP 503 - N1782C Read this topic online here: http://forums.matronics.com/viewtopic.php?p=227147#227147 ________________________________ Message 8 _____________________________________ Time: 11:48:13 AM PST US Subject: Kolb-List: Re: Check your Horiz. Stblzr bolts From: "Jimmy Young" John H said: >Understand. >However, the tail wires control how much pressure is exerted on the >front horizontal stabilizer attachment As soon as I hit the send button, I realized what you meant. I got it now. This flying wire hardware you changed to...what kind is it? Jimmy Y -------- Jimmy Young FS II, Generac V-Twin Houston TX area Read this topic online here: http://forums.matronics.com/viewtopic.php?p=227162#227162 ________________________________ Message 9 _____________________________________ Time: 11:57:46 AM PST US From: robert bean Subject: Kolb-List: greaseburger run Thom Riddle asked this morning if I wished to go for a ride.... W e l l, of course it isn't a Kolb, BUT after a particularly long spell of arctic circle climate today was suitable for pleasant flying. Does a bear_____ in the woods? Thom at the pickup point with the Rans DSCN1806.JPG cruising the valley DSCN1809.JPG zippy little taildragger even weighted down with cheeseburgers. He always flies right seat to keep the instructor perspective alive. DSCN1811.JPG BB, do not archive
________________________________ Message 10 ____________________________________ Time: 12:11:57 PM PST US From: "boyd" Subject: RE: Kolb-List: HKS readings for the day ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- -------------------------------------------- Yes, it reads both and shows the highest reading. They are the sensors supplied by EIS for their unit, and are brand new. I find it very puzzling as well. Larry C, >>>>>>>>>>>>>>>>>>>>>>>>>> You say the cht temps are high,,,,, and the oil is low.. How high are the cht? I am with john. the returning oil from the heads should cool the heads and raise the oil temp. Boyd Do not archive ________________________________ Message 11 ____________________________________ Time: 12:19:21 PM PST US From: "John Hauck" Subject: Re: Kolb-List: Re: Check your Horiz. Stblzr bolts > This flying wire hardware you changed to...what kind is it? > > Jimmy Y Jimmy: I probably need to take some photos and post on the List to better show how I built my tail wire system. I didn't use the standard SS wire tangs or the cable thimbles. I made tangs from 4130 strap. I used a cable pulley (that's what it looks like) with a 3/16 bolt to secure it to the 4130 tang/fork. I also have four turn buckle to adjust each wire. The are mounted outboard at the top and bottom of each side of the horizontal stabilizers. If you get right down to the real nitty gritty, the cable thimble was not designed to be used with a thin edge tang, as used on Kolb tail wires. Another way to get around this problem is use a 3/16 clevis with the thimble. john h mkIII ________________________________ Message 12 ____________________________________ Time: 12:55:24 PM PST US Subject: Kolb-List: Greasing bolts and fittings From: Richard Girard Grease is great stuff. It lubricates and protects from oxidation, provided you protect the grease from contamination by dirt and grit. If that protection isn't provided the dirt and grit combines with the grease to make a rudimentary grinding compound. Think about it, where have you seen grease used that a barrier of some kind hasn't been provided to keep the dirt and grit from contaminating it? If you provide that barrier, great, grease away. If the fitting or bolt can't be sealed, think seriously before you add grease to it. If you have a fitting where you believe wear is a problem change your maintenance schedule to give that item more attention and catch the wear before it gets out of hand, but don't compound the problem by adding grease to an unsealed area.My 2 cents, you opinion may differ. Rick do not archive ________________________________ Message 13 ____________________________________ Time: 01:08:58 PM PST US Subject: Kolb-List: From: "Nelson, Craig" I have a Grand Rapids EIS, a king altitude encoder, a 2 in vertical speed indicator and a 3 in air speed 0 to 120. The EIS has no sending units. Basement price to any fellow kolber Uncle craig ________________________________ Message 14 ____________________________________ Time: 01:38:12 PM PST US Subject: Re: Kolb-List: HKS readings for the day From: Richard Girard If you suspect the CHT senders are the cause of incorrect readings, take them out of the heads and stick the tip in a pan of boiling water. If the EIS doesn't read 212 (or 100 if your EIS is set for metric reading) you've at least isolated the problem to the sensing system. Have you checked the jet needle position. Mine came with the clip set on the second groove from the top, I raised the needles by moving the clip to the 3rd position and th e heads cooled right down. Do you use the stock vacuum pulse driven fuel pump? If so, how is your fuel pump connected? Did you (or your supplier) tee the balance line between the intake manifolds for the pulse line to the fuel pump. Check for vacuum leak s there, check the pump diaphragm for leaks, too. Have you mechanically and pneumatically synched your carbs? That can cause CHT problems as the two cylinders fight each other. The Rotax owners site has a great e-learning module that explains the process and why it is important. The method in the HKS manual has not been updated to reflect the addition of a balance tube between the intake manifolds. Contact Dana at Hpower LTD. They have a service bulletin on this. Frankly, the Rotax method works better and you can download the 912 Line Maintenance manual. The method is described in Section 12-00-00 pages 21 through 25. Have you checked the carb boots? If they have a crack in a carb boot, the mixture will go lean and the CHT's go up. Mine were rotted out after just 5 0 hours. HKS has a service bulletin about this, too, although the problem wit h the supplier is supposed to have been fixed some time ago. Rick do not archive On Tue, Jan 27, 2009 at 2:05 PM, boyd wrote: > > ------------------------------------------------------------------------- --------------------------------------------------------------------------- ------------------------------------------------ > > > Yes, it reads both and shows the highest reading. They are the sensors > supplied by EIS for their unit, and are brand new. I find it very puzzlin g > as well. > > Larry C, > > * * > > >>>>>>>>>>>>>>>>>>>>>>>>>> > > > You say the cht temps are high,,,,, and the oil is low=85. How high are > the cht? > > I am with john=85 the returning oil from the heads should cool the head s > and raise the oil temp. > > > Boyd > > > Do not archive > > =========== =========== =========== =========== > * > > ________________________________ Message 15 ____________________________________ Time: 02:03:45 PM PST US From: herb Subject: Re: Kolb-List: Greasing bolts and fittings Rick Looking at an old Aeronica Chief that my buds just bought...I can see that the rudder and elevator cables have been dressed with something like a hard wax. It would be less likely to mix with dirt and sand imho? End to end...Have no idea what it could be... ? Herb At 02:47 PM 1/27/2009, you wrote: >Grease is great stuff. It lubricates and protects from oxidation, >provided you protect the grease from contamination by dirt and grit. >If that protection isn't provided the dirt and grit combines with >the grease to make a rudimentary grinding compound. Think about it, >where have you seen grease used that a barrier of some kind hasn't >been provided to keep the dirt and grit from contaminating it? If >you provide that barrier, great, grease away. If the fitting or bolt >can't be sealed, think seriously before you add grease to it. If you >have a fitting where you believe wear is a problem change your >maintenance schedule to give that item more attention and catch the >wear before it gets out of hand, but don't compound the problem by >adding grease to an unsealed area. >My 2 cents, you opinion may differ. > >Rick >do not archive > ________________________________ Message 16 ____________________________________ Time: 02:40:16 PM PST US Subject: Re: Kolb-List: Greasing bolts and fittings From: Richard Girard Herb, Probably bees wax over light oil. You can do the same with LPS 3 (cosmoline in a can). Rick do not archive On Tue, Jan 27, 2009 at 3:56 PM, herb wrote: > > > Rick > > Looking at an old Aeronica Chief that my buds just bought...I can see that > the rudder and elevator cables have been dressed with something like a hard > wax. It would be less likely to mix with dirt and sand imho? End to > end...Have no idea what it could be... ? Herb > > > At 02:47 PM 1/27/2009, you wrote: > >> Grease is great stuff. It lubricates and protects from oxidation, provided >> you protect the grease from contamination by dirt and grit. If that >> protection isn't provided the dirt and grit combines with the grease to make >> a rudimentary grinding compound. Think about it, where have you seen grease >> used that a barrier of some kind hasn't been provided to keep the dirt and >> grit from contaminating it? If you provide that barrier, great, grease away. >> If the fitting or bolt can't be sealed, think seriously before you add >> grease to it. If you have a fitting where you believe wear is a problem >> change your maintenance schedule to give that item more attention and catch >> the wear before it gets out of hand, but don't compound the problem by >> adding grease to an unsealed area. >> My 2 cents, you opinion may differ. >> >> Rick >> do not archive >> >> > > ________________________________ Message 17 ____________________________________ Time: 03:25:12 PM PST US From: herb Subject: Re: Kolb-List: Greasing bolts and fittings Interesting...I have 5 gals of LPS3... Using it to preserve cams and cranks...Herb At 04:28 PM 1/27/2009, you wrote: >Herb, Probably bees wax over light oil. You can do the same with LPS >3 (cosmoline in a can). > >Rick >do not archive > >On Tue, Jan 27, 2009 at 3:56 PM, herb ><herbgh@nctc.com> wrote: ><herbgh@nctc.com> > > >Rick > > Looking at an old Aeronica Chief that my buds just bought...I can > see that the rudder and elevator cables have been dressed with > something like a hard wax. It would be less likely to mix with dirt > and sand imho? End to end...Have no idea what it could be... ? Herb > > >At 02:47 PM 1/27/2009, you wrote: >Grease is great stuff. It lubricates and protects from oxidation, >provided you protect the grease from contamination by dirt and grit. >If that protection isn't provided the dirt and grit combines with >the grease to make a rudimentary grinding compound. Think about it, >where have you seen grease used that a barrier of some kind hasn't >been provided to keep the dirt and grit from contaminating it? If >you provide that barrier, great, grease away. If the fitting or bolt >can't be sealed, think seriously before you add grease to it. If you >have a fitting where you believe wear is a problem change your >maintenance schedule to give that item more attention and catch the >wear before it gets out of hand, but don't compound the problem by >adding grease to an unsealed area. >My 2 cents, you opinion may differ. > >Rick >do not archive > > >========== >" target="_blank">http://www.matronics.com/Navigator?Kolb-List >========== >MS - >k">http://forums.matronics.com >========== >e - > -Matt Dralle, List Admin. >t="_blank">http://www.matronics.com/contribution >========== > > ________________________________ Message 18 ____________________________________ Time: 05:22:03 PM PST US From: robert bean Subject: Re: Kolb-List: Greasing bolts and fittings Herb, how old IS that aeronca? The only ones I've seen are threaded rod. BB do not archive On 27, Jan 2009, at 4:56 PM, herb wrote: > > > Rick > > Looking at an old Aeronica Chief that my buds just bought...I can > see that the rudder and elevator cables have been dressed with > something like a hard wax. It would be less likely to mix with dirt > and sand imho? End to end...Have no idea what it could be... ? > Herb > > At 02:47 PM 1/27/2009, you wrote: >> Grease is great stuff. It lubricates and protects from oxidation, >> provided you protect the grease from contamination by dirt and >> grit. If that protection isn't provided the dirt and grit combines >> with the grease to make a rudimentary grinding compound. Think >> about it, where have you seen grease used that a barrier of some >> kind hasn't been provided to keep the dirt and grit from >> contaminating it? If you provide that barrier, great, grease away. >> If the fitting or bolt can't be sealed, think seriously before you >> add grease to it. If you have a fitting where you believe wear is >> a problem change your maintenance schedule to give that item more >> attention and catch the wear before it gets out of hand, but don't >> compound the problem by adding grease to an unsealed area. >> My 2 cents, you opinion may differ. >> >> Rick >> do not archive >> > > ________________________________ Message 19 ____________________________________ Time: 06:09:01 PM PST US From: "Larry Cottrell" Subject: Re: Kolb-List: HKS readings for the day Hi, Boyd,The last time I flew I was doing 5750 rpm's oil temps were 157 and CHT was 329 degrees. Richard, I have not changed anything from the way it came from the factory. I only have about 4.5 hours on it now. I may indeed check the clip positions, it has just been too cold to do anything right now. Good point though. I did sync the carbs using tubing and Marvel Mystery oil as a marker. I squeezed the balance tubes shut using wood blocks and vice grips. They were quite a bit out of synch. It is smoother, but not cooler. I do have the pulse pump and a facet fuel pump and the balance lines are teed. Other than that every thing else appears to be ok. I just think that it is tight. If it does not improve with more time, then it will be time to get worried. Thanks Larry C ----- Original Message ----- From: Richard Girard To: kolb-list@matronics.com Sent: Tuesday, January 27, 2009 2:27 PM Subject: Re: Kolb-List: HKS readings for the day If you suspect the CHT senders are the cause of incorrect readings, take them out of the heads and stick the tip in a pan of boiling water. If the EIS doesn't read 212 (or 100 if your EIS is set for metric reading) you've at least isolated the problem to the sensing system. Have you checked the jet needle position. Mine came with the clip set on the second groove from the top, I raised the needles by moving the clip to the 3rd position and the heads cooled right down. Do you use the stock vacuum pulse driven fuel pump? If so, how is your fuel pump connected? Did you (or your supplier) tee the balance line between the intake manifolds for the pulse line to the fuel pump. Check for vacuum leaks there, check the pump diaphragm for leaks, too. Have you mechanically and pneumatically synched your carbs? That can cause CHT problems as the two cylinders fight each other. The Rotax owners site has a great e-learning module that explains the process and why it is important. The method in the HKS manual has not been updated to reflect the addition of a balance tube between the intake manifolds. Contact Dana at Hpower LTD. They have a service bulletin on this. Frankly, the Rotax method works better and you can download the 912 Line Maintenance manual. The method is described in Section 12-00-00 pages 21 through 25. Have you checked the carb boots? If they have a crack in a carb boot, the mixture will go lean and the CHT's go up. Mine were rotted out after just 50 hours. HKS has a service bulletin about this, too, although the problem with the supplier is supposed to have been fixed some time ago. Rick do not archive On Tue, Jan 27, 2009 at 2:05 PM, boyd wrote: ------------------------------------------------------------------------- ------------------------------------------------------------------------- -------------------------------------------------- Yes, it reads both and shows the highest reading. They are the sensors supplied by EIS for their unit, and are brand new. I find it very puzzling as well. Larry C, >>>>>>>>>>>>>>>>>>>>>>>>>> You say the cht temps are high,,,,, and the oil is low=85. How high are the cht? I am with john=85 the returning oil from the heads should cool the heads and raise the oil temp. Boyd Do not archive ==== get="_blank">http://www.matronics.com/Navigator?Kolb-List tp://forums.matronics.com _blank">http://www.matronics.com/contribution ------------------------------------------------------------------------- ----- Checked by AVG - http://www.avg.com 1/26/2009 7:08 AM ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message kolb-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Kolb-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/kolb-list Browse Digests http://www.matronics.com/digest/kolb-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.