---------------------------------------------------------- RV8-List Digest Archive --- Total Messages Posted Mon 04/04/11: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:56 AM - Re: RV8-List Digest: 3 Msgs - 04/03/11 (japhillipsga@aol.com) 2. 07:27 PM - Re: Canopy Skirt Buzz (Speedy11@aol.com) 3. 07:49 PM - Re: Canopy Skirt Buzz / hot and cold cylinders (Robin Marks) ________________________________ Message 1 _____________________________________ Time: 09:56:40 AM PST US Subject: RV8-List: Re: RV8-List Digest: 3 Msgs - 04/03/11 From: japhillipsga@aol.com Jim, this looks like about 90% of my clients!!?? Best regards, Bill -----Original Message----- From: RV8-List Digest Server Sent: Mon, Apr 4, 2011 3:08 am Subject: RV8-List Digest: 3 Msgs - 04/03/11 * ======================== Online Versions of Today's List Digest Archive ======================== Today's complete RV8-List Digest can also be found in either of the wo Web Links listed below. The .html file includes the Digest formatted n HTML for viewing with a web browser and features Hyperlinked Indexes nd Message Navigation. The .txt file includes the plain ASCII version f the RV8-List Digest and can be viewed with a generic text editor uch as Notepad or with a web browser. HTML Version: http://www.matronics.com/digest/digestview.php?Style=82701&View=htm l&Chapter 11-04-03&Archive=RV8 Text Version: http://www.matronics.com/digest/digestview.php?Style=82701&View=txt &Chapter 11-04-03&Archive=RV8 ====================== EMail Version of Today's List Digest Archive ====================== ---------------------------------------------------------- RV8-List Digest Archive --- Total Messages Posted Sun 04/03/11: 3 ---------------------------------------------------------- oday's Message Index: --------------------- 1. 11:49 AM - Re: Canopy Skirt Buzz... (Follow Up) (Pete Cowper) 2. 01:24 PM - Re: Re: Canopy Skirt Buzz... (Follow Up) (Robin Marks) 3. 03:52 PM - gear tower mod (Stan Loer) _______________________________ Message 1 _______________________________ ______ ime: 11:49:07 AM PST US rom: "Pete Cowper" ubject: RV8-List: RE: Canopy Skirt Buzz... (Follow Up) ren't those fancy noise cancelling headsets supposed to cancel out pesky oises like your canopy buzzing?!! ete Cowper V8 #81139 isalia Municipal Airport Hanger B-5 _______________________________ Message 2 _______________________________ ______ ime: 01:24:26 PM PST US rom: Robin Marks ubject: RE: RV8-List: RE: Canopy Skirt Buzz... (Follow Up) n some cases the buzzing on our (well made) canopy can be louder than our 00 Hp engine. Robin o Not Archive -----Original Message----- rom: owner-rv8-list-server@matronics.com mailto:owner-rv8-list-server@matronics.com] On Behalf Of Pete Cowper ent: Sunday, April 03, 2011 11:46 AM ubject: RV8-List: RE: Canopy Skirt Buzz... (Follow Up) ren't those fancy noise cancelling headsets supposed to cancel out pesky oises like your canopy buzzing?!! ete Cowper V8 #81139 isalia Municipal Airport Hanger B-5 _______________________________ Message 3 _______________________________ ______ ime: 03:52:30 PM PST US rom: "Stan Loer" ubject: RV8-List: gear tower mod I'm planning to open up the gear towers (only connecting the center and ower lightening holes), but am considering a different approach to estoring the lost strength from removing the web than I have seen on ther builder's web sites. Rather than completely plating over the open ole, how about an H-shaped plate that would essentially restore the ut-out web? The cross-bar section would incorporate the radii of the id and lower lightening holes with the vertical legs extending to pprox. mid-point of the holes. I'd probably use .063 mat'l for a ittle extra stiffness with bolt spacing about 150% of existing rivet pacing. Haven't worked out actual dimensions yet; just a concept so ar. The primary benefit would be eliminating the multitude of nut lates. Also, the lightening holes would still be there for access to nything that might not need the larger opening. Stan Loer V8 QB -======================== -= - The RV8-List Email Forum - -= Use the Matronics List Features Navigator to browse -= the many List utilities such as List Un/Subscription, -= Archive Search & Download, 7-Day Browse, Chat, FAQ, -= Photoshare, and much much more: - -= --> http://www.matronics.com/Navigator?RV8-List - -======================== -= - MATRONICS WEB FORUMS - -= Same great content also available via the Web Forums! - -= --> http://forums.matronics.com - -======================== -= - List Contribution Web Site - -= Thank you for your generous support! -= -Matt Dralle, List Admin. -= --> http://www.matronics.com/contribution -======================== ________________________________ Message 2 _____________________________________ Time: 07:27:47 PM PST US From: Speedy11@aol.com Subject: RV8-List: Re: Canopy Skirt Buzz Robin, That is surprising that the canopy buzz is so loud. Is it buzzing on the sides? I've had no similar problem that I'm aware of, but I modified the S curve on mine. Since it is buzzing so loudly, it must be vibrating. I wonder if that is creating fatigue in the fiberglass? Are your oil temps still doing well? Stan Sutterfield In a message dated 4/4/2011 3:08:51 A.M. Eastern Daylight Time, rv8-list@matronics.com writes: In some cases the buzzing on our (well made) canopy can be louder than our 200 Hp engine. ________________________________ Message 3 _____________________________________ Time: 07:49:42 PM PST US From: Robin Marks Subject: RV8-List: Re: Canopy Skirt Buzz / hot and cold cylinders The buzzing is very random And usually in a narrow speed range. We have done nothing to prevent the buzzing... Yet. It is definitely skirt vibration. I am not worried about it really. Temps are better with the new larger fiberglass oil cooler plenum. Not ideal but better. We are seeing 195 in low altitude high power cruse. We prefer 180 and a valve to control the temps mostly because I live in CA and summer temps can get triple digits. I expect at altitude we will see 180 or lower depending on conditions. Unfortunately we still have a HOT #3 and a cool #4 with 70-80 degrees separating them. 310 on #4 and 390 on #3. Ugh. 1&2 are 330-340. I know it is common to have temp issues on #3 because the back of the cylinder is often blocked by the rear baffle / plenum and little if any air goes down the back side of 3. We have read about some builders placing a spacer back there to aid in airflow. We ran the fuel flow test and found nothing unusual. I ordered a beaker set to be more precise. The FI system is an older Bendix with older injectors and no restrictors. I had a set of new injectors that I pulled off my 10 so we will be adding those this week. They allow us to swap out restrictors to balance the cylinders for flying LOP. Hopefully it will help the temps too. Basically I really need to get #3 cooler. The rest should be minor adjustments. Thanks for following up with me, Robin Sent from my iPad2. On Apr 4, 2011, at 7:21 PM, Speedy11@aol.com wrote: Robin, That is surprising that the canopy buzz is so loud. Is it buzzing on the sides? I've had no similar problem that I'm aware of, but I modified the S curve on mine. Since it is buzzing so loudly, it must be vibrating. I wonder if that is creating fatigue in the fiberglass? Are your oil temps still doing well? Stan Sutterfield In a message dated 4/4/2011 3:08:51 A.M. Eastern Daylight Time, rv8-list@matronics.com writes: In some cases the buzzing on our (well made) canopy can be louder than our 200 Hp engine. ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv8-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV8-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/rv8-list Browse Digests http://www.matronics.com/digest/rv8-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.