---------------------------------------------------------- RV-List Digest Archive --- Total Messages Posted Sat 04/28/07: 17 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:03 AM - Re: Govenor oil leak (Glen Matejcek) 2. 05:14 AM - Re: Govenor oil leak (Flamini, Dennis, Fran) 3. 09:32 AM - Re: Clocking the prop. Real world data (don wentz) 4. 10:04 AM - Looking for Robby Knox (Bob Snedaker) 5. 10:40 AM - Main spar flange bend angle problem (Michael D. Cencula) 6. 11:56 AM - Re: Looking for Robby Knox (Darrell Reiley) 7. 03:05 PM - Amount of smooth prime to do job (Tim Bryan) 8. 05:05 PM - Re: Amount of smooth prime to do job (William Gill) 9. 05:07 PM - Re: Main spar flange bend angle problem (wskimike) 10. 05:44 PM - Re: Amount of smooth prime to do job (Kyle Boatright) 11. 06:00 PM - Re: Main spar flange bend angle problem (Charlie England) 12. 06:53 PM - Re: Main spar flange bend angle problem (Bob Collins) 13. 07:56 PM - Wind Root Fairings - Nutplates (Brian Cross) 14. 09:41 PM - Re: Wind Root Fairings - Nutplates (Larry Bowles) 15. 10:22 PM - Re: Looking for Robby Knox (Kevin Horton) 16. 10:33 PM - Re: Looking for Robby Knox (Bob Snedaker) 17. 10:48 PM - Re: Looking for Robby Knox () ________________________________ Message 1 _____________________________________ Time: 05:03:04 AM PST US From: Glen Matejcek Subject: RV-List: Re: Govenor oil leak Hi Roy- > I have a new O-360 and the Jihostroj prop governor. I have a >persistent oil leak that appears to be coming from the gasket between >the governor and the engine. > Anyone else have the problem? Quite a few. There is a thread on this in the archives, but some of the lycs have an issue with blowing that gasket and dumping all the oil overboard. The solution seems to be 2 gaskets with a metal plate sandwiched between. Check the list of applicable engines.... Glen Matejcek ________________________________ Message 2 _____________________________________ Time: 05:14:06 AM PST US From: "Flamini, Dennis, Fran" Subject: Re: RV-List: Govenor oil leak Check for a hairline crack at the hose fitting, i had it on an 0-360 due to overtightening of the tapered pipe thread. Dennis in Chicago ________________________________ Message 3 _____________________________________ Time: 09:32:36 AM PST US From: "don wentz" Subject: RE: RV-List: Clocking the prop. Real world data Randy, I have a wood prop that can clock in any position on the studs. i also have the newer extension that Van's sells, that offsets the studs halfway between the crank bosses, and access to a std extension in-line with the crank bosses. Since I'll need to balance my new prop/spinner anyway, and the wood prop is easy to take on/off, we could play with that. Might even be able to borrow an aluminum Sensenich to get the feel of a heavier prop. O-360 with FI and one Emag. note that Mike's testing was done 'in flight', versus ours which would be 'static' on the ground. don _____ From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com] On Behalf Of Randy Lervold Sent: Tuesday, April 17, 2007 8:06 AM Subject: Re: RV-List: Clocking the prop. Real world data Wow Mike, great info!!! I've long been curious about prop clocking but there are some obstacles to just trying it as you ran into with the crank flange bosses. Of course you're working on a 6-cylinder where most of us are flying 4-cylinders. Anyone out there want to do some prop clocking experimentation with an O-360? If anyone in the Northwest wants to try some clocking experimentation I can assist with the measurement. Our EAA chapter has a DSS Micro MicroVibe II balancer.... HYPERLINK "http://www.eaa105.org/Programs/programs.htm#PropBalancing"http://www.eaa 105 .org/Programs/programs.htm#PropBalancing Best, Randy Lervold ----- Original Message ----- From: HYPERLINK "mailto:mike.stewart@us.ibm.com"Stewart, Michael (ISS Atlanta) "mailto:rocket-list@matronics.com"rocket-list@matronics.com ; HYPERLINK "mailto:rv-list@matronics.com"rv-list@matronics.com Sent: Tuesday, April 17, 2007 6:51 AM Subject: RV-List: Clocking the prop. Real world data After weeks of trial and error, I have finally reached a point where I can safely say that clocking the prop doesn=92t just make a difference, it makes ALL the difference. Several weeks ago I set out on a mission to run to ground a vibration in my RV-8. An IO-540 C4B5 with a Hartzell 2 blade prop. There has been a vibration that I would characterize as objectionable. Common on big engine Rockets and RV=92s. The lower the RPM, the more objectionable it was. I was able to instrument the plane and do some real tests and get real results with real data. The net of it is that by changing the prop clocking, I was able to improve my vibration by 83%. And no Im not kidding. You can read all the details here. HYPERLINK "http://www2.mstewart.net:8080/super8/index.htm"http://www2.mstewart.net: 808 0/super8/index.htm I captured a lot of data. I sure hope others find it useful. I have a new plane as a result. Best, Mike href="http://www.matronics.com/Navigator?RV-List">http://www.matronics. com/N avigator?RV-List href="http://forums.matronics.com">http://forums.matronics.com "http://www.matronics.com/Navigator?RV-List"http://www.matronics.com/Navi gat or?RV-List "http://forums.matronics.com"http://forums.matronics.com 1:39 PM 1:39 PM ________________________________ Message 4 _____________________________________ Time: 10:04:06 AM PST US From: Bob Snedaker Subject: RV-List: Looking for Robby Knox I'm looking for Robby Knox from Ricon, GA. I have his address as 107 Paddleford Drive in Rincon. His phone number as 912-429-5761, his email at rknox@alltel.net He received from me a large order in February for fairings for an -8 and a -10. The fairings weren't returned nor were the invoices. I need to talk to him about how he is going to pay me. If you know him tell him to shoot me an email or give me a call. Thanks -- Sincerely, Bob Snedaker Fairings-Etc PO Box 5488 Goodyear, AZ 85338 623 203 9795 bob@fairings-etc.com ________________________________ Message 5 _____________________________________ Time: 10:40:32 AM PST US From: "Michael D. Cencula" Subject: RV-List: Main spar flange bend angle problem RV-ers, I'm trying to figure out what to do about a problem with my main spar flanges. The problem is detailed at: http://www.our7a.com/20070426.html http://www.our7a.com/20070428.html Essentially, I think I need to tweak the bend angle of the main spar flanges in some locations. The problem is that the material is THICK and I've already riveted on my main ribs, so how can I tweak this angle? I suppose I could remove all the main ribs. It wouldn't be terrible since they're only attached to the main spar at this point, but I'd prefer to avoid that hassle if possible. Any thoughts on how to tweak that spar flange? Seaming pliers seems like a rough way to go. Also, does anyone know what this angle is supposed to actually be? Thanks, Mike Cencula ________________________________ Message 6 _____________________________________ Time: 11:56:18 AM PST US From: Darrell Reiley Subject: Re: RV-List: Looking for Robby Knox Good Luck...! He bought a rivet gun from me on VAF a few months back and stated to me the check was in the mail. Well... the check never came. I was just glad I had a gut feeling about this guy and hadn't shipped it yet. Darrell --- Bob Snedaker wrote: > > > I'm looking for Robby Knox from Ricon, GA. I have > his address as 107 Paddleford Drive in Rincon. His > phone number as 912-429-5761, his email at > rknox@alltel.net > > He received from me a large order in February for > fairings for an -8 and a -10. The fairings weren't > returned nor were the invoices. I need to talk to > him about how he is going to pay me. > > If you know him tell him to shoot me an email or > give me a call. > > Thanks > -- > Sincerely, > Bob Snedaker > Fairings-Etc > PO Box 5488 > Goodyear, AZ 85338 > 623 203 9795 > bob@fairings-etc.com > > > browse > Subscriptions page, > FAQ, > > Web Forums! > > > > > __________________________________________________ ________________________________ Message 7 _____________________________________ Time: 03:05:21 PM PST US From: "Tim Bryan" Subject: RV-List: Amount of smooth prime to do job Hi all, I have researched the archives about sealing up / priming my cowl for my RV-6. As expensive as this stuff is, I am wondering if a quart would be enough. The ACS website says 3 gallons to do a plastic airplane but all I need to do is the cowl and maybe some fairings. Will a quart do it? Tim ________________________________ Message 8 _____________________________________ Time: 05:05:02 PM PST US From: "William Gill" Subject: RE: RV-List: Amount of smooth prime to do job Tim, I tried Van's "thinned epoxy" coatings, but the 24 hour wait before sanding can make this a loooong process; however, it works and it's inexpensive. After three coats of the thinned epoxy, I became impatient and switched to a primer/filler product by PPG that can be sprayed or brushed on. Attached are a few pictures of the product and the results. I have no experience with the smooth prime product. Bill RV-7 FWF Lee's Summit, MO -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com] On Behalf Of Tim Bryan Sent: Saturday, April 28, 2007 5:03 PM Subject: RV-List: Amount of smooth prime to do job Hi all, I have researched the archives about sealing up / priming my cowl for my RV-6. As expensive as this stuff is, I am wondering if a quart would be enough. The ACS website says 3 gallons to do a plastic airplane but all I need to do is the cowl and maybe some fairings. Will a quart do it? Tim ________________________________ Message 9 _____________________________________ Time: 05:07:27 PM PST US From: "wskimike" Subject: Re: RV-List: Main spar flange bend angle problem Use a shim rather than trying to bend the rib because you may crack it. It would be better to shim it and don't even think about bending the wing spar. Mike ----- Original Message ----- From: "Michael D. Cencula" Sent: Saturday, April 28, 2007 12:39 PM Subject: RV-List: Main spar flange bend angle problem > > > RV-ers, > > I'm trying to figure out what to do about a problem with my main spar > flanges. > The problem is detailed at: > > http://www.our7a.com/20070426.html > http://www.our7a.com/20070428.html > > Essentially, I think I need to tweak the bend angle of the main spar > flanges > in some locations. > > The problem is that the material is THICK and I've already riveted on my > main > ribs, so how can I tweak this angle? > > I suppose I could remove all the main ribs. It wouldn't be terrible since > they're only attached to the main spar at this point, but I'd prefer to > avoid > that hassle if possible. > > Any thoughts on how to tweak that spar flange? Seaming pliers seems like > a > rough way to go. > > Also, does anyone know what this angle is supposed to actually be? > > Thanks, > > Mike Cencula > > > ________________________________ Message 10 ____________________________________ Time: 05:44:27 PM PST US From: "Kyle Boatright" Subject: Re: RV-List: Amount of smooth prime to do job A quart worked just fine for me and I was pleased with the results. However, some folks in the Canard community have bad things to say about the product. Some have seen bubbling that they attribute to smooth prime. The theory is that the smooth prime holds moisture and the moisture causes bubbling under the finish coat. I think the current institutional knowledge with the canard guys and gals is to make sure you give smooth prime much more drying time than the instructions call for, and to make sure you store the parts in a dry (not humid) environment before painting. KB ----- Original Message ----- From: Tim Bryan To: rv-list@matronics.com Sent: Saturday, April 28, 2007 6:03 PM Subject: RV-List: Amount of smooth prime to do job Hi all, I have researched the archives about sealing up / priming my cowl for my RV-6. As expensive as this stuff is, I am wondering if a quart would be enough. The ACS website says 3 gallons to do a plastic airplane but all I need to do is the cowl and maybe some fairings. Will a quart do it? Tim ________________________________ Message 11 ____________________________________ Time: 06:00:04 PM PST US From: Charlie England Subject: Re: RV-List: Main spar flange bend angle problem Michael D. Cencula wrote: > > RV-ers, > > I'm trying to figure out what to do about a problem with my main spar flanges. > The problem is detailed at: > > http://www.our7a.com/20070426.html > http://www.our7a.com/20070428.html > > Essentially, I think I need to tweak the bend angle of the main spar flanges > in some locations. > > The problem is that the material is THICK and I've already riveted on my main > ribs, so how can I tweak this angle? > > I suppose I could remove all the main ribs. It wouldn't be terrible since > they're only attached to the main spar at this point, but I'd prefer to avoid > that hassle if possible. > > Any thoughts on how to tweak that spar flange? Seaming pliers seems like a > rough way to go. > > Also, does anyone know what this angle is supposed to actually be? > > Thanks, > > Mike Cencula Hi Mike, If the flanges really are bent too much or not enough, you might be able to pull the flange down with a bar-clamp (like you'd use in cabinet making) and some big stiff angle to spread the load along the spar flange. Having said that: What does it look like if you cleco on the nose rib & wrap a strip of AL over the rib & spar flange? If that lines up and looks ok, read on. IIRC, my spar flanges weren't exactly square to the web (but I think they were consistent in their bends). The problem I *did* have, that caused some of the main rib/main spar joints to look just like yours, was a few bad ribs. After fighting the same gap between the spar flange & rib flange I see in yours, I noticed that that the other pair of flanges (top vs. bottom on the same rib) was too tight. Closer inspection revealed that the tooling holes in the problem ribs were distorted as if they had been dimpled off-center. The rib blanks had shifted in the punch press, causing all the holes to be punched offset by a fraction of an inch. The ribs' web flange holes being offset caused the rib to sit too high (or low, don't remember which) in relation to the spar. Further evidence was that the prepunched holes on the rib's top flange were a different distance from the edge from the holes on the bottom flange. All these holes get punched before the rib's flanges are bent. A call to Van's tech help got the standard 'it's your fault; you're doing something wrong', followed by asking for proof (I supplied it), followed by the ubiquitous 'we've never seen this before', followed by 'we'll send you new parts & if the old one really is defective when you return it, we won't charge you for the new one'. They didn't charge me for the new one. I don't know if it's relevant to your problem, but it really does look like what I saw with mine. Charlie ________________________________ Message 12 ____________________________________ Time: 06:53:26 PM PST US From: "Bob Collins" Subject: RE: RV-List: Main spar flange bend angle problem I vaguely remember a similar problem here, but I used the O ring (s) trick around the rivet so that the bucking bar was basically pushing the little flange of the rib against the flange of the main spar. I'd be VERY reluctant to try to bend the main spar material in any way. Do not archive ________________________________ Message 13 ____________________________________ Time: 07:56:06 PM PST US From: Brian Cross Subject: RV-List: Wind Root Fairings - Nutplates Hi Folks I was working on my wing root gap fairings on my 8 today. Where the fairing is screwed onto the top & bottom wing skin, the plans on Dwg. 43 call for a K1000-08 nutplate & to machine countersink the skins. In the wing tank area where the gap seals are attached to the tank skins, the plans call for K11000-08 nut plates. This would of course call for dimpling the skins to accept the AN509-8R8 screws, ( the same screw called out for the K1000-08 nutplates). This does not seem right to me as the countersink depth from the top of the screw to the end of the taper on the screw is about 0.080". This means that if you machine countersink the skins which total about 0.050" in thickness, the holes are going to be huge all the way through both skins, ( the holes will largest of course at the outer skins & the inner skin will have a smaller but still a significant size). It seems to me that all of these areas should be dimpled due to the thinness of the total material. The documentation indicates for the tank area, the skins be dimpled first & then if required, machine countersink to complete it if the necessary dimple depth cannot be attained. To add further confusion, I looked at my preview plans with the last update of July 1998, all of these areas were specified to have K1100-08 nutplates which as mentioned, to me that makes total sense. I am obviously missing something here & would really appreciate any help on this. Maybe I am being too fussy but I don't want to mess up my wing skins at this stage of the game. Thanks so much. Brian Cross #81844 RV-8 ________________________________ Message 14 ____________________________________ Time: 09:41:29 PM PST US From: "Larry Bowles" Subject: Re: RV-List: Wind Root Fairings - Nutplates The countersinking occurs at the wing walk doubler. I worked fine for me. DO NOT ARCHIVE LARRY B. 7A AUSTIN, TX. ________________________________ Message 15 ____________________________________ Time: 10:22:48 PM PST US From: Kevin Horton Subject: Re: RV-List: Looking for Robby Knox He frequents the VAF WWW forums. You might try posting a message in the General Discussion section over there. http://www.vansairforce.com/community/forumdisplay.php?f=2 Kevin On 28 Apr 2007, at 14:54, Darrell Reiley wrote: > > > Good Luck...! > > He bought a rivet gun from me on VAF a few months back > and stated to me the check was in the mail. Well... > the check never came. I was just glad I had a gut > feeling about this guy and hadn't shipped it yet. > > Darrell > > > --- Bob Snedaker wrote: > >> >> >> I'm looking for Robby Knox from Ricon, GA. I have >> his address as 107 Paddleford Drive in Rincon. His >> phone number as 912-429-5761, his email at >> rknox@alltel.net >> >> He received from me a large order in February for >> fairings for an -8 and a -10. The fairings weren't >> returned nor were the invoices. I need to talk to >> him about how he is going to pay me. >> >> If you know him tell him to shoot me an email or >> give me a call. >> >> Thanks >> -- >> Sincerely, >> Bob Snedaker >> Fairings-Etc >> PO Box 5488 >> Goodyear, AZ 85338 >> 623 203 9795 >> bob@fairings-etc.com >> >> >> browse >> Subscriptions page, >> FAQ, >> >> Web Forums! >> >> ________________________________ Message 16 ____________________________________ Time: 10:33:46 PM PST US From: Bob Snedaker Subject: Re: RV-List: Looking for Robby Knox Thanks Kevin...I'll try that. Bob Snedaker Fairings-Etc ---- Kevin Horton wrote: > > He frequents the VAF WWW forums. You might try posting a message in > the General Discussion section over there. > > http://www.vansairforce.com/community/forumdisplay.php?f=2 > > Kevin > > > On 28 Apr 2007, at 14:54, Darrell Reiley wrote: > > > > > > > Good Luck...! > > > > He bought a rivet gun from me on VAF a few months back > > and stated to me the check was in the mail. Well... > > the check never came. I was just glad I had a gut > > feeling about this guy and hadn't shipped it yet. > > > > Darrell > > > > > > --- Bob Snedaker wrote: > > > >> > >> > >> I'm looking for Robby Knox from Ricon, GA. I have > >> his address as 107 Paddleford Drive in Rincon. His > >> phone number as 912-429-5761, his email at > >> rknox@alltel.net > >> > >> He received from me a large order in February for > >> fairings for an -8 and a -10. The fairings weren't > >> returned nor were the invoices. I need to talk to > >> him about how he is going to pay me. > >> > >> If you know him tell him to shoot me an email or > >> give me a call. > >> > >> Thanks > >> -- > >> Sincerely, > >> Bob Snedaker > >> Fairings-Etc > >> PO Box 5488 > >> Goodyear, AZ 85338 > >> 623 203 9795 > >> bob@fairings-etc.com > >> > >> > >> browse > >> Subscriptions page, > >> FAQ, > >> > >> Web Forums! > >> > >> > > > > > -- Sincerely, Bob Snedaker Fairings-Etc PO Box 5488 Goodyear, AZ 85338 623 203 9795 ________________________________ Message 17 ____________________________________ Time: 10:48:21 PM PST US From: Subject: Re: RV-List: Looking for Robby Knox Thanks for letting me know your experience with this guy. Bob Snedaker ---- Darrell Reiley wrote: > > Good Luck...! > > He bought a rivet gun from me on VAF a few months back > and stated to me the check was in the mail. Well... > the check never came. I was just glad I had a gut > feeling about this guy and hadn't shipped it yet. > > Darrell > > > --- Bob Snedaker wrote: > > > > > > > I'm looking for Robby Knox from Ricon, GA. I have > > his address as 107 Paddleford Drive in Rincon. His > > phone number as 912-429-5761, his email at > > rknox@alltel.net > > > > He received from me a large order in February for > > fairings for an -8 and a -10. The fairings weren't > > returned nor were the invoices. I need to talk to > > him about how he is going to pay me. > > > > If you know him tell him to shoot me an email or > > give me a call. > > > > Thanks > > -- > > Sincerely, > > Bob Snedaker > > Fairings-Etc > > PO Box 5488 > > Goodyear, AZ 85338 > > 623 203 9795 > > bob@fairings-etc.com > > > > > > browse > > Subscriptions page, > > FAQ, > > > > Web Forums! > > > > > > > > > > > > > __________________________________________________ > > > > -- Sincerely, Bob Snedaker Fairings-Etc PO Box 5488 Goodyear, AZ 85338 623 203 9795 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV-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/rv-list Browse Digests http://www.matronics.com/digest/rv-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.