From: krnet-bounces+johnbou=speakeasy.net@mylist.net To: John Bouyea Subject: KRnet Digest, Vol 346, Issue 40 Date: 7/21/2004 8:59:58 PM 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: Inspection (Jim Faughn) 2. RE: Oil leak - Finally, The problem is found! (Steve Glover) 3. Formation photo (Jack Cooper) ---------------------------------------------------------------------- Message: 1 Date: Wed, 21 Jul 2004 19:49:48 -0500 From: "Jim Faughn" Subject: RE: KR> Inspection To: "'KRnet'" Message-ID: <000001c46f85$ca764aa0$96d65540@jfaughn> Content-Type: text/plain; charset="us-ascii" Sounds to me like you may be getting vapor lock. I would look first at your fuel system. Are you absolutely sure that the gascolator is the lowest point of your fuel system and then it is totally an up hill slant to your carb? If you have some weird curves that give a point where the fuel can vaporize it can cause a partial or full block. That would explain why it takes 2 hours and then runs ok again. Jim Faughn N891JF -----Original Message----- From: krnet-bounces@mylist.net [mailto:krnet-bounces@mylist.net] On Behalf Of Barry Kruyssen Sent: Wednesday, July 21, 2004 6:47 PM To: KRnet Subject: KR> Inspection Enough of the Aircraft Spruce and Dog tales, lets talk KR2. I got my preflight inspection done last Friday. Everything passed OK. So my test pilot taxiied to the end of the strip, did the run ups and then shutdown to get out and do a walk around. When he fired it back up it ran extreamly rough (check out the video link below the engine picture on my WEB page). So back to the drawing board, so to speak. Starts cold ok and runs well, right up to tempurature and for 15+ minutes. Shutdown and wait 4 minutes and restart and it runs rough. I'm at a bit of a loss since it runs fine from a cold start. I have to leave it 2 hours before it will start and run OK. All 4 coils and 8 plugs are sparkiing. I'm changing the fuel return line setup as there is a possibility of a vapour lock. If that doen't fix it I have an tech coming on Saturday to check the electrical. regards Barry Kruyssen Cairns, Australia RAA 19-3873 kr2@BigPond.com http://users.tpg.com.au/barryk/KR2.htm _______________________________________ to UNsubscribe from KRnet, send a message to KRnet-leave@mylist.net please see other KRnet info at http://www.krnet.org/info.html ------------------------------ Message: 2 Date: Wed, 21 Jul 2004 18:49:15 -0700 From: "Steve Glover" Subject: RE: KR> Oil leak - Finally, The problem is found! To: "KRnet" Message-ID: Content-Type: text/plain; charset="us-ascii" >For whats its worth the only other time I have seen a repeated oil leak that stumped me and other techs prior to a total teardown was when a crank was broken, but not broken into two pieces. Hello Netter's. Here's the final analysis and diagnosis. I tore down the engine and then took kit over to Richard Shirley's for carefull inspection of the flywheel nd crank assembly. Everything looked fine...no unusual wear noted. Today I took the crank, flywheel, magnet ring and mag drive to a local speed shop. The crank was magnafluxed with no defects found. The journals were all mic'd and were good. AAAGGHHHH!!!!!! Then the Owner of the shop walked out, took a quick look at all the parts. After studying the gland nut he announced the gland nut was cracked and no matter what the initial torque was or how we locked it from turning, it would break completely sooner or later. After the last leak problem, the flywheel and gland nut was replaced so we didn't think to check it. The crack had to be seen with a magnifying glass. The permatex on the nut didn't help any either. I wish I still had the old nut to see if it broken also. So, now I get to rebuild my engine which really didn't to be torn down in the first place. Since we are there, I am having the flywheel and crank wedge fit to ensure I have no more problems. Scat produces a chromolly gland nut that the racers are using and that will also be installed. The guy at the speed shop assured me this nut will not break under the loads we use them at. He said has seen only one sheared, and that was after applying over 600 ft lbs of torque. All crank components, to include the prop hub and magnet ring/ mag drive are going to be assembled and balanced as one complete unit. I just may make the gathering after all. I just may not have all the cosmetics finished up on the airframe. Thanks for all the help and advice. This group is the best! Regards, Steve Glover kr02g@cox.net KR-2 N902G AJO, Ca. ------------------------------ Message: 3 Date: Wed, 21 Jul 2004 22:01:02 -0400 From: "Jack Cooper" Subject: KR> Formation photo To: "KR builders and pilots" Message-ID: <410-220047422212406@earthlink.net> Content-Type: text/plain; charset=US-ASCII Mark Do you have the formation flight photo saved in a high resolution format. If so could you please email it to me at the highest resolution possible. I would like to get a poster made of it. I'm speaking of the in flight photo of Jim, Marty, and Steve over Iowa. Jack Cooper kr2cooper@earthlink.net Why Wait? Move to EarthLink. ------------------------------ _______________________________________________ See KRnet list details at http://www.krnet.org/instructions.html End of KRnet Digest, Vol 346, Issue 40 ************************************** ================================== ABC Amber Outlook Converter v4.20 Trial version ==================================