From: krnet-bounces@mylist.net on behalf of krnet-request@mylist.net Sent: Tuesday, October 21, 2003 12:00 PM To: krnet@mylist.net Subject: KRnet Digest, Vol 195, Issue 1 Send KRnet mailing list submissions to krnet@mylist.net To subscribe or unsubscribe via the World Wide Web, visit http://mylist.net/listinfo/krnet or, via email, send a message with subject or body 'help' to krnet-request@mylist.net You can reach the person managing the list at krnet-owner@mylist.net When replying, please edit your Subject line so it is more specific than "Re: Contents of KRnet digest..." Today's Topics: 1. Re: Bolt question (roger mitchell) 2. Re: strange engine problem (Mac McConnell-Wood) 3. Re: strange engine problem (Dan Heath) 4. Re: Looking for Les Palmer (Jim Sellars) 5. Re: Bolt question (Mark Langford) 6. Re: Painting tips (gleone) 7. Re: strange engine problem (Scott Cable) 8. Engine roughness (Colin) 9. K & N Air Filters (JIM VANCE) ---------------------------------------------------------------------- Date: Tue, 21 Oct 2003 01:04:53 -0500 From: "roger mitchell" To: "KR builders and pilots" Subject: Re: KR>Bolt question Message-ID: References: <4b.3554b929.2cc5e680@wmconnect.com> <204f01c39774$9c4ae3a0$1202a8c0@basement> Content-Type: text/plain; charset="iso-8859-1" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: list Message: 1 Mark, a ,an6-6a is a 3/8'sx3/16th grip length, undrilled, you = probably need a an6-7a with a couple washers which is 3/8 dia. x 5/16 = grip length undrilled . for the aft spar bolts an3-6 with washers = , 3/16 dia x 3/8 grip length you should insure that none of the threads = are in side the fittings. These can be found at Aircraft Spruce ,their = catalog is free when you order and the info is on page 74 or somewhere = close to that ----- Original Message -----=20 From: Mark Langford=20 To: KR builders and pilots=20 Sent: Monday, October 20, 2003 8:42 PM Subject: Re: KR>Bolt question Tim Boyer wrote: > Does anyone have the part number for these bolts or=20 > correct size I'm turning gray trying to get this right AN6-6A for the big ones, AN3-5A for the small ones Mark Langford, Huntsville, AL N56ML "at" hiwaay.net see KR2S project at http://home.hiwaay.net/~langford _______________________________________________ see KRnet list details at http://www.krnet.org/instructions.html ------------------------------ Date: Tue, 21 Oct 2003 09:41:24 +0100 From: "Mac McConnell-Wood" To: "Brian Kraut" , "KR builders and pilots" Subject: Re: KR>strange engine problem Message-ID: <022501c397af$1db0c1a0$17dc403e@tinypc> References: <347040.1066687145940.JavaMail.root@louie.psp.pas.earthlink.net> Content-Type: text/plain; charset="iso-8859-1" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Precedence: list Message: 2 I had a similar problem on my Revmaster (Amal carb) went through mega abstruse theories,-overhauled the mags, changed the harness, played with carb needles, jets for ever, till I ran her up with carb heat on and -problem gone! Couldn't believe it as we've just gone thru our hottest summer for years. Always go for the simplest solution! All the best, Mac UK ----- Original Message ----- From: "Brian Kraut" To: Sent: Monday, October 20, 2003 10:59 PM Subject: KR>strange engine problem > I have a real strange engine problem and I was hoping someone could possibly shed some light on it for me. I have a VW2180 with a Zenith carb. The induction system for the carb has a round hole in the cowl that is about an inch and a half diameter. Behind that is a rectangular airbox that has a K&N filter element that is about 4 X 7". That goes into a piece of 2 1/2" SCAT tubing into the carb heat box which is mounted to the front of the carb. There are some pictures at www.engalt.com/kr2.htm > > My engine has been running pretty smooth except for a fraction of a > second stumble about every thirty second to a minute. During a cross country last week at 8,500' it would give me the little stumble about every fifteen seconds after I was flying for a few hours. It isn't a stumble that would make you land, but one that you pay attention to. I have a cockpit mixture adjustment and had it out about an inch during cruise. The engine would run rough and loose power at two inches out, and it would still give the stumble and decrease RPM if it was pushed in any more so the best I could tell without an EGT is that I had the mixture adjusted correctly. The oil temp is fine and the CHT was only about 280 degrees. > > Just for grins I tried pulling the carb heat in case there was some > icing even though there was no visible moisture and I was in Florida on an 85 degree day. I noticed that when it was all the way on I got the normal decrease in RPM, but when it was about half way on the engine smoothed out, picked up 100 RPM, and ran perfectly. > > My first thought is that maybee I had the mixture lean because the > mixture richens a bit when carb heat is on, but with the carb heat off I got a definite RPM decrease if I pushed the mixture in more and it didn't make the engine run any smoother. Another thought is that I was getting a lot of ram air pressure which was leaning the mixture, but again, that doesn't explain the fact that the engine runs best at altitude with the mixture pulled back some. I thought that maybe I had to much resistance through the filter and opening the carb heat some gave me more air, but that would have made it richer and leaning it more would have made the engine run smooth, which it didn't. > > Mark had a post a while ago about someone who had a ram air system > that didn't port the float bowl air vent to the same pressure that is at the front of the carb and I possibly have the same problem, but I don't think that I am getting that much ram pressure with the filter and I have the same symptoms on the ground or in very slow flight when I have almost no ram pressure. > > Any one have any clue what this could be? > > > > _______________________________________________ > see KRnet list details at http://www.krnet.org/instructions.html ------------------------------ Date: Tue, 21 Oct 2003 06:09:45 -0400 (Eastern Standard Time) From: "Dan Heath" To: Subject: Re: KR>strange engine problem Message-ID: <3F9505E9.000053.02224@Computer> References: <022501c397af$1db0c1a0$17dc403e@tinypc> Content-Type: Text/Plain; charset="iso-8859-1" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: list Message: 3 I had a very similar problem with a Zenith on the 1835 on my first KR. I was coming back from a short cross country trip when the engine started running rough. I gave it full throttle and the roughness went away. I pulled back and it started again. I didn't have carb heat at the time. = I pushed in full throttle and the roughness went away again. I flew it all the way back at full throttle. I pulled the Zenith and put on carb heat.= I never ran that carb again. I definitely attributed it to icing. =0D =0D If it runs with a little carb heat, give it some carb heat.=0D =0D N64KR=0D =0D Daniel R. Heath - Columbia, SC=0D =0D DanRH@KR-Builder.org=0D =0D See you in Mt. Vernon - 2004 - KR Gathering=0D =0D See our KR at http://KR-Builder.org - Click on the pic=0D See our EAA Chapter 242 at http://EAA242.org=0D =20From DanRH@alltel.net Tue Oct 21 03:10:08 2003 Received: from mta02.alltel.net ([166.102.165.144] helo=mta02-srv.alltel.net) by lizard.esosoft.net with esmtp (Exim 3.36 #1) id 1ABtSq-000I9A-00 for krnet@mylist.net; Tue, 21 Oct 2003 03:10:08 -0700 Received: from Computer ([151.213.92.252]) by mta02-srv.alltel.net with SMTP id <20031021101412.GEZF527.mta02-srv.alltel.net@Computer> for ; Tue, 21 Oct 2003 05:14:12 -0500 MIME-Version: 1.0 Message-Id: <3F9506F6.000055.02224@Computer> Date: Tue, 21 Oct 2003 06:14:14 -0400 (Eastern Standard Time) X-Mailer: IncrediMail 2001 (2001155.2001155) From: "Dan Heath" References: <002501c3978f$813bc000$09fcd241@clapp> X-FID: FLAVOR00-NONE-0000-0000-000000000000 X-FVER: X-CNT: ; X-Priority: 3 To: Subject: Re: KR>Painting tips Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1b3 X-BeenThere: krnet@mylist.net X-Mailman-Version: 2.1b3 Precedence: list Reply-To: KR builders and pilots List-Id: KR builders and pilots List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: List-Help: Bill,=0D =0D What is the best way to avoid "orange peel"? =0D =0D N64KR=0D =0D Daniel R. Heath - Columbia, SC=0D =0D DanRH@KR-Builder.org=0D =0D See you in Mt. Vernon - 2004 - KR Gathering=0D =0D See our KR at http://KR-Builder.org - Click on the pic=0D See our EAA Chapter 242 at http://EAA242.org=0D =20From flesner@midwest.net Tue Oct 21 04:37:36 2003 Received: from epic.mail.pas.earthlink.net ([207.217.120.181]) by lizard.esosoft.net with esmtp (Exim 3.36 #1) id 1ABupU-000ISn-00 for krnet@mylist.net; Tue, 21 Oct 2003 04:37:36 -0700 Received: from dsc06-cir-oh-206-215-98-184.rasserver.net ([206.215.98.184] helo=larry-flesner) by epic.mail.pas.earthlink.net with smtp (Exim 3.33 #1) id 1AButQ-00048b-00 for krnet@mylist.net; Tue, 21 Oct 2003 04:41:41 -0700 Message-Id: <3.0.6.32.20031021063551.007d4100@pop.midwest.net> X-Sender: flesner@pop.midwest.net X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.6 (32) Date: Tue, 21 Oct 2003 06:35:51 -0500 To: KR builders and pilots From: larry flesner Subject: Re: KR>Bolt question In-Reply-To: <4b.3554b929.2cc5e680@wmconnect.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-BeenThere: krnet@mylist.net X-Mailman-Version: 2.1b3 Precedence: list Reply-To: KR builders and pilots List-Id: KR builders and pilots List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: List-Help: >I can get the length right I have made 3 different orders thinking I >have the >right length only to find out the grip is to long and there's not >enough >thread to tighten them up Does anyone have the part number for these bolts or >correct size I'm turning gray trying to get this right >Tim ++++++++++++++++++++++++++++++++++++++++++++++++++++++= Measure the thickness of the items you are bolting together. look on the bolt chart (wick's) for the "grip length" of the size bolt you need. Use one or two washers to adjust the length. If you order bolts one dash number smaller and one dash number larger you can't fail and the extra bolts are probably cheaper than shipping cost on a reorder. Larry Flesner ------------------------------ Date: Tue, 21 Oct 2003 09:20:25 -0300 From: "Jim Sellars" To: "KR builders and pilots" Subject: Re: KR>Looking for Les Palmer Message-ID: <004201c397cd$b6679f40$81a89aa5@LAPTOP> References: <60.36b0f8a7.2cc5dcd8@wmconnect.com> Content-Type: text/plain; charset="iso-8859-1" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Precedence: list Message: 4 Les Palmer; 972-241-4387 ----- Original Message ----- From: To: Sent: Monday, October 20, 2003 9:50 PM Subject: KR>Looking for Les Palmer > Does anyone have the correct phone number for Les Palmer? I need to > get in touch with him > > Thanks > _______________________________________________ > see KRnet list details at http://www.krnet.org/instructions.html > > ------------------------------ Date: Tue, 21 Oct 2003 07:48:31 -0500 From: "Mark Langford" To: "KR builders and pilots" Subject: Re: KR>Bolt question Message-ID: <002301c397d1$a24f9770$5e0ca58c@tbe.com> References: <4b.3554b929.2cc5e680@wmconnect.com><204f01c39774$9c4ae3a0$1202a8c0@basement> Content-Type: text/plain; charset="iso-8859-1" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Precedence: list Message: 5 > Mark, a ,an6-6a is a 3/8'sx3/16th grip length, undrilled, you probably need a an6-7a with a couple washers which is 3/8 dia. x 5/16 grip length undrilled . for the aft spar bolts an3-6 with washers , 3/16 dia x 3/8 grip length you should insure that none of the threads are in side the fittings. < I got those two bolt numbers directly out of the Rand Robinson bolt list that was provided with my "bolt kit" that I bought from them years ago, not that it means anything. I guess I should have actually looked them up and found the grip length, and actually thought about it a little. After all, we know how good the plans are. I'd have probably come to the same conclusion you did. But on the other hand, I'll bet there are several hundred KRs out there flying with exactly those bolts in the WAFs. Mark Langford, Huntsville, AL N56ML at hiwaay.net see KR2S project N56ML at http://home.hiwaay.net/~langford ------------------------------ Date: Tue, 21 Oct 2003 09:36:56 -0600 (Mountain Daylight Time) From: "gleone" To: Subject: Re: KR>Painting tips Message-ID: <3F955298.000007.02960@bce-p949w4at3vz> References: <3F9506F6.000055.02224@Computer> Content-Type: Text/Plain MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: list Message: 6 =0D Check Sport Aviation. It recently had an article on painting and how to avoid orange peeling.=0D =0D -------Original Message-------=0D =0D From: KR builders and pilots=0D Date: Tuesday, October 21, 2003 4:14:29 AM=0D To: krnet@mylist.net=0D Subject: Re: KR>Painting tips=0D =0D Bill,=0D =0D What is the best way to avoid "orange peel"?=0D =0D N64KR=0D =0D Daniel R. Heath - Columbia, SC=0D =0D DanRH@KR-Builder.org=0D =0D See you in Mt. Vernon - 2004 - KR Gathering=0D =0D See our KR at http://KR-Builder.org - Click on the pic=0D See our EAA Chapter 242 at http://EAA242.org=0D _______________________________________________=0D see KRnet list details at http://www.krnet.org/instructions.html=0D =0D =2E ------------------------------ Date: Tue, 21 Oct 2003 08:38:25 -0700 (PDT) From: Scott Cable To: Brian Kraut , KR builders and pilots Subject: Re: KR>strange engine problem Message-ID: <20031021153825.69119.qmail@web40806.mail.yahoo.com> In-Reply-To: <347040.1066687145940.JavaMail.root@louie.psp.pas.earthlink.net> Content-Type: text/plain; charset=us-ascii MIME-Version: 1.0 Precedence: list Message: 7 Brian, My first thought is that this sounds like carb ice. Your problem comes at partial throttle, and at a certain interval. The engine has just enough time to build a little ice in the intake tract, slowing closing off the fuel air mixture, then the engine gives a little cough because it's lean, which clears the ice, and the mixture comes back to normal and the process starts all over again. If it runs best with a little carb heat, then run with a little carb heat. What do your plugs say? They may show a slight lean condition. > My engine has been running pretty smooth except for > a fraction of a second stumble about every thirty > second to a minute. During a cross country last > week at 8,500' it would give me the little stumble > about every fifteen seconds after I was flying for a > few hours. It isn't a stumble that would make you > land, but one that you pay attention to. I have a > cockpit mixture adjustment and had it out about an > inch during cruise. The engine would run rough and > loose power at two inches out, and it would still > give the stumble and decrease RPM if it was pushed > in any more so the best I could tell without an EGT > is that I had the mixture adjusted correctly. The > oil temp is fine and the CHT was only about 280 > degrees. > > Just for grins I tried pulling the carb heat in case > there was some icing even though there was no > visible moisture and I was in Florida on an 85 > degree day. I noticed that when it was all the way > on I got the normal decrease in RPM, but when it was > about half way on the engine smoothed out, picked up > 100 RPM, and ran perfectly. > Any one have any clue what this could be? > > > > _______________________________________________ > see KRnet list details at http://www.krnet.org/instructions.html ===== Scott Cable KR-2S # 735 Wright City, MO s2cable1@yahoo.com __________________________________ Do you Yahoo!? The New Yahoo! Shopping - with improved product search http://shopping.yahoo.com ------------------------------ Date: Tue, 21 Oct 2003 12:39:22 -0400 From: "Colin" To: "KR builders and pilots" Subject: KR>Engine roughness Message-ID: <004901c397f1$e242b180$05462141@Beverly> Content-Type: text/plain; charset="iso-8859-1" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: list Message: 8 Netters and Brian, All engines I have ever come in contact with have to have a small amount = of engine heat applied to the air fuel mixture in order to prevent the = gas from separating from the mix at part throttle due to internal = condensation. This is why even modern multi-port fuel injected cars have = coolant circulated at the throttle body to provide a small amount of = heat to the mixture, warming the air slightly, before attempting to mix = the fuel with it. If not, the engine intake system will cool = sufficiently to cause the fuel to condense on the walls of the intake, = while the air outruns it into the open cylinder. Then the pooled fuel = combines with other fuel condensed and goes into the next cylinder, = causing a lean rich lean rich condition. Only race engines run at near = to full throttle benefit from complete ram air, and no engine heat. = These engines also run poorly, to awful at part throttle, surging, lean = cutout, lean/rich surge, stumbling offi-idle prior to accelerating. This = is why they have to rev up so high to simply leave the pits, or launch = off the line. Plug color is unrevealing unless you do a part throttle = run and immediately shut down. Otherwise other running conditions will = also be there, so that the plug color will show the entire operation = characteristics, not just one range. For good engine performance, a = small amount of engine heat keeping the carb alittle warm is necessary = for all but wide open throttle operation. Look at Lycomings and = Chevrolets. Both have the carbs located where engine heat warms their = bases to improve what we called atomization, and fuel mixture retention. = Thoughts.... Colin & Bev Rainey KR2(td) crainey1@cfl.rr.com Sanford, Florida FLY SAFE!!!!From millerai@lantic.net Tue Oct 21 10:28:17 2003 Received: from ctb-mesg5.saix.net ([196.25.240.77]) by lizard.esosoft.net with esmtp (Exim 3.36 #1) id 1AC0Iq-000Msn-00 for krnet@mylist.net; Tue, 21 Oct 2003 10:28:17 -0700 Received: from m6o3w1 (tnpt-ip-nas-1-p06.telkom-ipnet.co.za [155.239.166.6]) by ctb-mesg5.saix.net (Postfix) with SMTP id 4DF8613AA for ; Tue, 21 Oct 2003 19:32:08 +0200 (SAST) Message-ID: <002801c397f9$cdbbe580$06a6ef9b@m6o3w1> From: "Ivan & Ilse Miller" To: "KR builders and pilots" References: <20031020173224.49713.qmail@web40803.mail.yahoo.com> Subject: Re: KR>KR1 and Bill Stead's Miss Cosmic Wind Date: Tue, 21 Oct 2003 19:35:53 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-BeenThere: krnet@mylist.net X-Mailman-Version: 2.1b3 Precedence: list Reply-To: KR builders and pilots List-Id: KR builders and pilots List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: List-Help: How about the Sonerai 1. Also tube and fabric, seems like a great plane and relatively cheap. Regards Ivan ----- Original Message ----- From: "Scott Cable" To: ; "KR builders and pilots" Sent: Monday, October 20, 2003 7:32 PM Subject: RE: KR>KR1 and Bill Stead's Miss Cosmic Wind > Not exactly Ron. The Miss Cosmic Wind looks more like > a Mid-Winged KR-1 than a Cassutt. The fuselage sides, > rudder and canopy are all very much different. > Also the Cassutt is Rag & Tube. Neat airplane, but > not exactly what I want. > --- Ron Freiberger wrote: > > Buy Cassutt plans... exactly what you want. > > > > > ===== > Scott Cable > KR-2S # 735 > Wright City, MO > s2cable1@yahoo.com > > __________________________________ > Do you Yahoo!? > The New Yahoo! Shopping - with improved product search > http://shopping.yahoo.com > > _______________________________________________ > see KRnet list details at http://www.krnet.org/instructions.html > > > ************************************************************ > Scanned by @lantic IS Virus Control Service > This message was scanned for viruses and dangerous content. @lantic > Internet Services (Pty) Ltd. - http://www.lantic.net eScan for > Windows-based PCs - http://www.escan.co.za > ************************************************************ > ------------------------------ Date: Tue, 21 Oct 2003 12:35:51 -0500 From: "JIM VANCE" To: "krnet" Subject: KR>K & N Air Filters Message-ID: <004a01c397f9$c69c78a0$0700a8c0@oemcomputer> Content-Type: text/plain; charset="iso-8859-1" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: list Message: 9 Brian, I'm using a K & N filter on the 582 Rotax on my Renegade. I started = losing power with a commensurate decrease in exhaust gas and cylinder = head temperatures. Then I started experiencing "hiccups". It turned = out to be the filter. It looked perfectly clean, but the oil had = congealed to where it was severely restricting the air flow, and I was = running more than rich. Try cleaning and re-oiling your air filter. It might make your problem = go away. Please let us know what you do find: it may make it easier for one of = us to solve a similar problem in the future. Jim Vance = Vance@ClaflinWildcats.com ------------------------------ _______________________________________________ See KRnet list details at http://www.krnet.org/instructions.html End of KRnet Digest, Vol 195, Issue 1 *************************************