Brodhead Pietenpol Association

Original Posted By: matt miller
Corky wrote:>What I need from you is the name(s) of someone who knows that>Stromberg from A to izzard who I can send it to and feel that it will>be correct when I receive it. I want the BEST.Hey, Corky- if you don't mind Texas folks and can understand "Texan", you can call Deanie Montgomery in Corsicana, TX. He is presently helping another Texan (airline pilot) finish up his J-3 clone, and is also just about done overhauling my own Stromberg NAS3A1 carb (going on a Corvair). Deanie is at (903)874-3714; P.O. Box 1046, Corsicana, TX 75151. FWIW- his shop is on Collin Street in Corsicana. If you've never heard of the Collin Street Bakery, they are world-famous for holiday fruit cakes. Funny thing is, the bakery isn't even on Collin Street in Corsicana. Also FWIW, Corsicana is just south of Dallas.Oscar ZunigaSan Antonio, TXmailto: taildrags(at)hotmail.comwebsite at http://www.flysquirrel.netMSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide ... ______Date: Fri, 23 Aug 2002 06:14:31 -0700 (PDT)

Original Posted By: "Gary McNeel, Jr."

Original Posted By: "Michael King"
matt miller asked:> As a beginner, I notice that most everyone uses T-88 on their Piet.> Has anyone tried one of the new polyurethene glues? They seem> to be so much easier-(no mix) and they fill gaps. (etc.)No idea how they stand up to dope, though it would surprise me ifthey had a problem with it. However, my strong impression is thatthey are not suitable for aircraft work, even though one or two makersof ultralights do endorse them.Wooden Boat did two articles about polyurethane glues a coupleof years ago. The first, based on a fairly preliminary evaluation,found them to be very promising. The second, after more extensivestudy, warned against them. If memory serves, they made good,strong bonds, which became brittle over time. I've half an idea--and this is definitely not to be trusted--that they did not penetratequite as well as epoxies or resorcinol, so that although they didtear wood on breaking tests, water had an easier time of gettingbelow the bond and rotting the wood below. Of course, that isa much greater concern for boat builders than for airplane builders.Note that while polyurethanes do fill gaps, the filler has nouseful strength. Joints using polyurethane glues can be a bitless precise than with resorcinol, but you don't get anything likethe tolerance available with epoxy.Also, they have some pretty specific requirements for clampingpressure--lower than resorcinol, but significantly more thanthe epoxy. According to a friend who does use them in ultralightconstruction, they are very finicky about this.FWIW. Note that my hands-on experience to date includes afew wing ribs for an EAA chapter glider project and for myown long-stalled Piet, so this is all based on the work of others.I've used polyurethanes for minor woodworking, but the ribsused resorcinol or phenol-formaldehyde (for the chapterproject) or T-88 (for the Piet.) Based on reading and on thatlittle bit of practice, the only one I fully trust is resorcinol.However, T-88 seems to be "good enough."Owen Davies________________________________________________________________________________

Original Posted By: owner-pietenpol-list-server(at)matronics.com
Oscar,Thanks for the tip to where to send my Stromberg.I have been to Corsicana several times on Masoniclodge business and have been to the world famousCollin Street Bakery but it is nice to know where tosend my carb.Mike KingGN-177MKDallas, Texas-----Original Message-----

Original Posted By: matt miller
Matt. I used poly glue on most of my ship and have had great results withit.Use gloves when using it as it had a tendency to stay with you for a while.Elmers ProBond is what I used and is available at most home improvementsuppliers.Carl----- Original Message -----

Original Posted By: matt miller

Original Posted By: matt miller
Hi Matt,Get some polyurethane and do some tests.I have been working with wood all my life and I'll be darned if I can getmore than 10% to 15% wood breakage when the test joint is broken. That means85% to 90% of the glue joint breaks and that is not good enough for anaircraft I plan to fly. Maybe it is like Owen says the clamping pressure isjust real critical, I have done maybe a dozen test samples.On another glue note I always make a couple test samples with the T88 beforeI use it on the plane, especially if I haven't used if for a couple ofmonths. I just had to pitch out about 1/2 qt of T88 because I couldn't getit to pass the test. You should get real close to 100% wood breakage whenyou break the joint.SkipAs a beginner, I notice that most everyone uses T-88 on their Piet. Hasanyone tried one of the new polyurethene glues? They seem to be so mucheasier-(no mix) and they fill gaps. Will they stand up to dope? I would liketo hear from others on this subject. MM________________________________________________________________________________Date: Fri, 23 Aug 2002 08:07:42 -0700 (PDT)

Original Posted By: Ryan Mueller
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Original Posted By: "ALAN LYSCARS"
Either should be configurable for a Corvair.RyanSent from my iPhoneOn Apr 9, 2010, at 11:19 AM, brian.e.jardine@l-3com.com wrote:>>> Group,>> I have been watching a few ads for a Stromberg carb for my > =9A=C3=84=C3=BAcrank snapin=9A=C3=84=C3=B9 Corvair. Which would be the preferred carb > the NA-S3A or the NA-S3B or does it not make a difference?>>> Brian>> SLC-UT>> =C2=B6=88=91=C3=B5~=C3=A2=C3=8C=89=A4,=EF=AC=81=C5=B8 %=C2=A2=CE=A94=9DM4}=C3=9F=1Er=C3=A3=C2=B4=C3=A2=C3=8D=C3=81{=07(=88=AB=88=8F=C3=BB________________________________________________________________________________

Original Posted By: brian.e.jardine@l-3com.com
Brian,These carbs- the 3a and 3b- are functionally identical. The "3a" has a functional mixture control, while the "3b" does not.The mixture control on the 3a has no effect for us Corvair users operating below 8,000 feet MSL. The control does not work as an idle-cutoff as one might expect. Rather, it can be used for leaning the burn at cruise, but is only effective at high elevations.Most if not all 3a's had their mixture wired in the "full rich" position when attached to C65's or C85's.Hope this helps.Al LyscarsManchester, NH ----- Original Message -----

Original Posted By: H RULE

Original Posted By: Ryan Mueller
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Original Posted By: Rick Holland
RickThanks for the pictures and advice. That is exactly the help I needed. I tooam planning on using the washer head screws. And that drill guide, don't you justlove how well it works. I use the same thing all the time. Do you happento remember the gap you left between the 1/2 inch false spars? I measure the rolledpart of the hinge to be 1/4 inch on my hinge.Chris--------ChrisSacramento, CAWestCoastPiet.comRead this topic online here:http://forums.matronics.com/viewtopic.p ... ______Date: Tue, 20 Apr 2010 14:15:02 -0600Subject: Re: Pietenpol-List: Stromberg carb

Original Posted By: Ryan Mueller
Subject: Re: Pietenpol-List: Stromberg carb