---------------------------------------------------------- RV8-List Digest Archive --- Total Messages Posted Wed 06/08/11: 8 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:36 AM - Re: AFP Injection and RV-8A (rvg8tor) 2. 11:41 AM - Re: Re: AFP Injection and RV-8A (Terry Watson) 3. 01:06 PM - RV-8A Toe In Progress Report (Robin Marks) 4. 01:27 PM - Re: RV-8A Toe In Progress Report (Larry Bowen) 5. 02:07 PM - Re: RV-8A Toe In Progress Report (Craig Gallenbach) 6. 04:27 PM - Re: AFP Injection and RV-8A (Carl Froehlich) 7. 05:09 PM - Re: AFP Injection and RV-8A (rvg8tor) 8. 05:33 PM - Re: Re: AFP Injection and RV-8A (Carl Froehlich) ________________________________ Message 1 _____________________________________ Time: 07:36:59 AM PST US Subject: RV8-List: Re: AFP Injection and RV-8A From: "rvg8tor" Terry, It looks like you came up with the solution I am getting too. I assume you had the AFP unit sent back to have the mixture control rotation revered to make yours work. My unit came with the rotation from ICO to Rich being Clockwise and it needed to be revered to make the control work with where the cable needed to be located. Thanks for the pictures. You are the first -8A using both Vert Ind and AFP FI I have seen. Cheers -------- Mike "Nemo" Elliott RV-8A QB (Fuselage) Read this topic online here: http://forums.matronics.com/viewtopic.php?p=342404#342404 ________________________________ Message 2 _____________________________________ Time: 11:41:45 AM PST US From: "Terry Watson" Subject: RE: RV8-List: Re: AFP Injection and RV-8A I don't recall having the mixture control rotation reversed. But then it has been quite awhile - and maybe I have it backwards! Terry -----Original Message----- From: owner-rv8-list-server@matronics.com [mailto:owner-rv8-list-server@matronics.com] On Behalf Of rvg8tor Sent: Wednesday, June 08, 2011 7:34 AM Subject: RV8-List: Re: AFP Injection and RV-8A Terry, It looks like you came up with the solution I am getting too. I assume you had the AFP unit sent back to have the mixture control rotation revered to make yours work. My unit came with the rotation from ICO to Rich being Clockwise and it needed to be revered to make the control work with where the cable needed to be located. Thanks for the pictures. You are the first -8A using both Vert Ind and AFP FI I have seen. Cheers -------- Mike "Nemo" Elliott RV-8A QB (Fuselage) Read this topic online here: http://forums.matronics.com/viewtopic.php?p=342404#342404 ________________________________ Message 3 _____________________________________ Time: 01:06:39 PM PST US Subject: RV8-List: RV-8A Toe In Progress Report From: Robin Marks Upon further investigation and inquiry our toe in situation is profound. We pulled off all the items hung on the gear to take accurate measurements. It turns out there is a 1" over 14" toe in angle/measurement equating to a 4 degree toe in position. Vans calls for no more than 1/2 degree toe in angle/measurement. As we purchased the 8A kit partially built (on it's legs) we then assumed the legs were transposed. Upon pulling off one leg to visualize how it would be reversed we realized that swapping the legs would place the wheels at extreme angles so that was not a possibility. After speaking to Vans (prior to pulling the gear leg) they told us the 7A, 8A & 9A legs are definitely different in geometry. The only thing I can think of at this point is that we have the wrong gear legs for our model. I do not like the idea of re-drilling the gear legs because of how difficult they are to drill and because the offset to the current hole would only be 4 degrees making for an even more challenging machining exercise. We will be calling Vans again later today to discuss. Photos attached... Robin ________________________________ Message 4 _____________________________________ Time: 01:27:21 PM PST US Subject: Re: RV8-List: RV-8A Toe In Progress Report From: Larry Bowen I built an 8 before and am working on a 7 now. I noticed the same thing when I put the 7 on it's gear a couple months ago. I concluded it was just the nature of the wittman style gear. As they take loads from 0 to 2000+ pounds, they sweep out and back. Staying aligned during this range of operation is impossible. The bar-type gear on the 8 only flexes out -- making alignment more reasonable. -- Larry Bowen Larry@BowenAero.com http://BowenAero.com On Wed, Jun 8, 2011 at 4:03 PM, Robin Marks wrote: > Upon further investigation and inquiry our toe in situation is profound. We > pulled off all the items hung on the gear to take accurate measurements. It > turns out there is a 1" over 14" toe in angle/measurement equating to a 4 > degree toe in position. Vans calls for no more than 1/2 degree toe > in angle/measurement. As we purchased the 8A kit partially built (on it's > legs) we then assumed the legs were transposed. Upon pulling off one leg to > visualize how it would be reversed we realized that swapping the legs would > place the wheels at extreme angles so that was not a possibility. After > speaking to Vans (prior to pulling the gear leg) they told us the 7A, 8A & > 9A legs are definitely different in geometry. The only thing I can think of > at this point is that we have the wrong gear legs for our model. I do not > like the idea of re-drilling the gear legs because of how difficult they are > to drill and because the offset to the current hole would only be 4 degrees > making for an even more challenging machining exercise. We will be calling > Vans again later today to discuss. > > Photos attached... > Robin > > ________________________________ Message 5 _____________________________________ Time: 02:07:43 PM PST US From: Craig Gallenbach Subject: Re: RV8-List: RV-8A Toe In Progress Report I've concluded its the nature of the design and there is no practical way t o adjust it.- I have not measured toe-in on my 8A (quick build), but I do know it is there. - My plane tracks well, but I do see much-more tire wear than I would expec t.- I watch tire wear closely, rotate tires as needed, and just figure on buying more tires than other aircraft I've owned in the past. - Craig Gallenbach Eastover, NC RV8A N184CG- 190 hours --- On Wed, 6/8/11, Robin Marks wrote: From: Robin Marks Subject: RV8-List: RV-8A Toe In Progress Report Upon further investigation and inquiry our toe in situation is profound. We pulled off all the items hung on the gear to take accurate measurements. I t turns out there is a 1" over 14" toe in angle/measurement equating to a 4 degree toe in position. Vans calls for no more than 1/2 degree toe in-an gle/measurement. As we purchased the 8A kit partially built (on it's legs) we then assumed the legs were transposed. Upon pulling off one leg to visua lize how it-would-be reversed we realized that swapping the legs would place the wheels at extreme angles so that was not a-possibility. After s peaking to Vans (prior to pulling the gear leg) they told us the 7A, 8A & 9 A legs are-definitely-different in geometry. The only thing I can think of at this point is that we have the wrong gear legs for our model.-I do not like the idea of re-drilling the gear legs because of how difficult th ey are to drill and-because-the offset to the current hole-would-on ly be 4 degrees making for an even more challenging machining exercise.-We will be calling Vans again later today to discuss.- Photos attached... Robin - ________________________________ Message 6 _____________________________________ Time: 04:27:48 PM PST US From: "Carl Froehlich" Subject: RE: RV8-List: AFP Injection and RV-8A My install is very similar to Terry's, except my mixture line is more vertical. I fabricated the brackets in place and remember I had to use a couple of pieces of angle riveted together to get the right setup on the mixture. I was able to use the control cable length by Van's. I also remember having a nice pile of aluminum scraps and dust from various trials and errors. You can use some light aluminum sheet to mock up the brackets, then fabricate from few pieces of 1/8" x 2" x 2" or so angle. Don't worry about the big size as you will trim off the excess anyway. Carl Froehlich RV-8A (650 hrs) RV-10 (almost ready for fuselage paint) -----Original Message----- From: owner-rv8-list-server@matronics.com [mailto:owner-rv8-list-server@matronics.com] On Behalf Of Terry Watson Sent: Wednesday, June 08, 2011 12:03 AM Subject: RE: RV8-List: AFP Injection and RV-8A Here us a link to some photos of what I did a few years ago for that same combination. I seems to work pretty well, but then again it has never been in the air either: http://tcwatson.zenfolio.com/p288537335 Terry RV-8A project - stalled Seattle -----Original Message----- From: owner-rv8-list-server@matronics.com [mailto:owner-rv8-list-server@matronics.com] On Behalf Of rvg8tor Sent: Tuesday, June 07, 2011 8:32 PM Subject: RV8-List: AFP Injection and RV-8A I am trying to sort out my mixture and throttle cables. If you have a RV-8A (nose gear) and Air Flow Performance fuel injection, that is vertical induction please message me. The exhaust hangers (Vetterman cross over) and the supports of the engine mount make this a very troublesome puzzle. Thanks in advance. Cheers -------- Mike "Nemo" Elliott RV-8A QB (Fuselage) Read this topic online here: http://forums.matronics.com/viewtopic.php?p=342377#342377 ________________________________ Message 7 _____________________________________ Time: 05:09:37 PM PST US Subject: RV8-List: Re: AFP Injection and RV-8A From: "rvg8tor" Carl & Terry, Thanks for the inputs, it is alway nice to know you are on the right track. In the photo you can see prototype #1. I basically went the straight route, this seems to give the best clearance between the exhaust and the mount support. I will put a heat shield on the exhaust and will watch closely, I am a little worried since I don't know how much the engine moves in this area, finding the right clearance seem to be a little of a crap shoot. Cheers -------- Mike "Nemo" Elliott RV-8A QB (Engine) www.mykitlog.com/rvg8tor Read this topic online here: http://forums.matronics.com/viewtopic.php?p=342459#342459 ________________________________ Message 8 _____________________________________ Time: 05:33:35 PM PST US From: "Carl Froehlich" Subject: RE: RV8-List: Re: AFP Injection and RV-8A Nice work. I think I was one of the few people to do the AFP/vertical draft/RV-8A install - killing four or five weekends in the process. As I mentioned I ran the mixture cable more vertical, on the inside of the interfering engine mount pipe (you have yours on the outside). This kept it away from the exhaust and I didn't need to use the spacer at the end of the control cable like you have. This did require re-clocking the AFT throttle body mixture control arm. Just a different way to do it. Carl -----Original Message----- From: owner-rv8-list-server@matronics.com [mailto:owner-rv8-list-server@matronics.com] On Behalf Of rvg8tor Sent: Wednesday, June 08, 2011 8:07 PM Subject: RV8-List: Re: AFP Injection and RV-8A Carl & Terry, Thanks for the inputs, it is alway nice to know you are on the right track. In the photo you can see prototype #1. I basically went the straight route, this seems to give the best clearance between the exhaust and the mount support. I will put a heat shield on the exhaust and will watch closely, I am a little worried since I don't know how much the engine moves in this area, finding the right clearance seem to be a little of a crap shoot. Cheers -------- Mike "Nemo" Elliott RV-8A QB (Engine) www.mykitlog.com/rvg8tor Read this topic online here: http://forums.matronics.com/viewtopic.php?p=342459#342459 ------------------------------------------------------------------------------------- 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.