Brodhead Pietenpol Association

Original Posted By: owner-pietenpol-list-server(at)matronics.com
et>Jack for something like that, just ask yourself what would happen if thebolts came loose.- Is it a catastrophic failure?- For something like an airfilter, if it parted company with the airplane the only thing that mighthappen is that your engine would breathe better.- Besides, on my Continentalinstallations, the air filter will be readily obvious on preflightinspection.- I would use whatever you're comfortable with.- One of theadvantages of experimental aircraft is you are not bound by regulations.- Ofcourse, that is a two-edged sword, so you've got to think about theconsequences.Having said that, I just walked over and loked at my Pietenpol.- I securedmy Brackett Air Filter with AN3 bolts and locknuts.Jack PhillipsNX899JPSmith Mountain Lake, Virginia-----Original Message-----

Original Posted By: Jack
I wanted to wish everyone on the list a Happy New Year. This list has been acontinuing source of information and inspiration. Folks like Bill Church, MikeCuy and Tom Bernie have been especially helpful to this first time builder.I wish for you all good progress and safe flying in the new year.Mark BaxterRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Airbox Question

Original Posted By: Jack
For my C85 I need to rivet ms21047-L3 plate nuts (10-32) to the box to hold thefilter. Do I need drilled an3's to secure the filter with safety wire or willthe plate nuts suffice like lock nuts? Also, I assume I need a gasket betweenthe airbox and carb. Is there a gasket between the filter and airbox?Thanks and Happy New Year!Sent from my iPadJack Textor________________________________________________________________________________Subject: Re: Pietenpol-List: Airbox Question

Original Posted By: Jim Boyer
Checked the manual and it appears instead of plate nuts they specify some kindof locking zeus fastener. Would bolts and plate nuts work also?Sent from my iPadJack TextorOn Dec 31, 2012, at 12:41 PM, Jack wrote:> > For my C85 I need to rivet ms21047-L3 plate nuts (10-32) to the box to hold thefilter. Do I need drilled an3's to secure the filter with safety wire or willthe plate nuts suffice like lock nuts? Also, I assume I need a gasket betweenthe airbox and carb. Is there a gasket between the filter and airbox?> Thanks and Happy New Year!> > Sent from my iPad> Jack Textor> > > > ________________________________________________________________________________Date: Mon, 31 Dec 2012 19:44:42 +0000 (UTC)

Original Posted By: owner-pietenpol-list-server(at)matronics.com
Jack for something like that, just ask yourself what would happen if thebolts came loose. Is it a catastrophic failure? For something like an airfilter, if it parted company with the airplane the only thing that mighthappen is that your engine would breathe better. Besides, on my Continentalinstallations, the air filter will be readily obvious on preflightinspection. I would use whatever you're comfortable with. One of theadvantages of experimental aircraft is you are not bound by regulations. Ofcourse, that is a two-edged sword, so you've got to think about theconsequences.Having said that, I just walked over and loked at my Pietenpol. I securedmy Brackett Air Filter with AN3 bolts and locknuts.Jack PhillipsNX899JPSmith Mountain Lake, Virginia-----Original Message-----

Original Posted By:> owner-pietenpol-list-server(at)matronics.com
Thanks JP, Happy New Year!Sent from my iPadJack TextorOn Dec 31, 2012, at 4:16 PM, "Jack Phillips" wrote:> > Jack for something like that, just ask yourself what would happen if the> bolts came loose. Is it a catastrophic failure? For something like an air> filter, if it parted company with the airplane the only thing that might> happen is that your engine would breathe better. Besides, on my Continental> installations, the air filter will be readily obvious on preflight> inspection. I would use whatever you're comfortable with. One of the> advantages of experimental aircraft is you are not bound by regulations. Of> course, that is a two-edged sword, so you've got to think about the> consequences.> > Having said that, I just walked over and loked at my Pietenpol. I secured> my Brackett Air Filter with AN3 bolts and locknuts.> > Jack Phillips> NX899JP> Smith Mountain Lake, Virginia> > -----Original Message-----

Original Posted By: shad bell
Jack=3B you can see the setup on my A75 at the second-to-last photo here:http://www.flysquirrel.net/piets/engine/A75.htmlMy airbox had some plate nuts riveted on behind the four holes but I found that with those nuts I couldn't tighten the filter fasteners to my satisfaction. They slipped or stripped. So=2C I just left them in place and went through the filter=2C gasket=2C and airbox with AN525 washer-head screws=2C secured with flat washers and fiber locknuts behind the plate nuts.My air filter came with a rectangular gasket. The fit at the airbox isn't that critical=3B it serves to keep unfiltered air from entering the carb but it isn't like the gaskets or fit downstream of the carb=2C which need to be very tight so the air/fuel mixture isn't affected if there is a leak. You could probably get some shears or an Xacto knife and cut yourself a gasket out of orange baffling material=2C a rubber inner tube=2C or some stiff fibrous material.Oscar ZunigaMedford=2C ORAir Camper NX41CC "Scout"A75 power ________________________________________________________________________________Date: Tue, 1 Jan 2013 10:17:09 -0800 (PST)

Original Posted By: Jack
I should add that it was my practice to service the air filter twice a year whenI based the airplane in dusty south Texas and flew it off the grass. Fiberlocknuts make it quick and easy to pull the filter for service, and I will replacethe nuts every couple of years when the fiber won't hold tight. I was quitesurprised at the amount of crud that my filter catches when flying in dusty,grassy, pollen-y conditions. I wash it, dry it, and then apply K&N filterspray to the inlet side of the filter.Not sure if I'll need to service the filter more than annually up here in Oregon,but we'll see.--------Oscar ZunigaMedford, ORAir Camper NX41CC "Scout"A75 powerRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Re: Pietenpol-List: Airbox Question

Original Posted By: Jack
Thanks JP, Oscar and Shad! Think I will try the plate nuts. Got a bunch done onthe Piet this Holiday break. Lots of sanding, finished up panel except finalfinish and radio, got the firewall started and finished my motor mount jig finishedand painted. Next stop will be the engine mount.Safe New Year to all!Sent from my iPadJack TextorOn Dec 31, 2012, at 1:08 PM, Jack wrote:> > Checked the manual and it appears instead of plate nuts they specify some kindof locking zeus fastener. Would bolts and plate nuts work also?> > Sent from my iPad> Jack Textor> > On Dec 31, 2012, at 12:41 PM, Jack wrote:> >> >> For my C85 I need to rivet ms21047-L3 plate nuts (10-32) to the box to holdthe filter. Do I need drilled an3's to secure the filter with safety wire or willthe plate nuts suffice like lock nuts? Also, I assume I need a gasket betweenthe airbox and carb. Is there a gasket between the filter and airbox?>> Thanks and Happy New Year!>> >> Sent from my iPad>> Jack Textor> > > > > ________________________________________________________________________________Subject: Re: Pietenpol-List: Airbox Question

Original Posted By: "taildrags"
Love that video! That camera will be a piece of cake for a PharmD doc! O chem is much harder :DLooks like you are off to a great start! Makes me wanna fly but I have severalmore years yet :?Read this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Re: Airbox Question

Original Posted By: Lyle Fast
Jack;About that little support bracket that braces the air box to the case. Be awarethat not all small Continentals have them. I'll bet if you snoop on the WestcoastPiet site, Fly Baby site, and others with A65-A75-C75-C85-C90 with thatairbox, you'll find about half with and half without the brace. Mine has thebrace, but in the nose-over, it crumpled. See the picture of the air box andfilter down past halfway on this page:http://www.flysquirrel.net/piets/incide ... t.htmlWhen I was gathering parts for the repairs, I found out that that little bracecan get quite expensive if you buy the genuine part, so don't bother. I fabricatedmine, and it's a very simple piece that you can quickly bend up out of aluminum.Oddly enough, mine isn't symmetrical but I can't remember why it isn't.I used the old piece as a go-by, but shaped mine a little differently. Mineattaches to the air box with PK screws, I think.--------Oscar ZunigaMedford, ORAir Camper NX41CC "Scout"A75 powerRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________