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Ryan Allen
 Post subject: Carb Air Box
PostPosted: Sun Jul 10, 2022 3:49 pm 
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I have decided to try and build my carb air box per plans, rather than buying the Vans air box. If I buy the Vans airbox, I'll have to cut up my lower cowl and re-fiberglass it to make the Vans air box fit. I have looked through my plans, but I cant seem to locate what material is used to make the airbox. Anyone know what material is used?


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Ryan Allen
PostPosted: Sun Jul 10, 2022 3:58 pm 
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The more I look at it, what drawing # lays out the dimensions of the airbox? I must be missing a print....


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Rich Brazell
PostPosted: Mon Jul 11, 2022 5:44 pm 
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#782 Well Carb. Air Box-Scale FULL . Material .06 6061 T-4 . Next assembly #781 Assembly Carb Air Box-Scale Full . Material .04 6061 T-4 . #751 Seal Carb Air Box Scale-Full . Material four-ply fiberglass fabric with silicone rubber . That is all I know . RB out .

RB O0
NX115RX


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Ryan Allen
PostPosted: Mon Jul 11, 2022 6:02 pm 
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well, eat my grits. I have been staring at #781 for 2 days. I cant believe I didnt see the dimensions. When I get ready to make the 751 seal, your gonna have to educate me as to how you make the fiberglass/silicone mixture.


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Rich Brazell
PostPosted: Mon Jul 11, 2022 8:26 pm 
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Sorry dude , I don't have a clue how to mix the goo as I didn't use this type of air box . You can probably use an off the shelf ready made seal material from Spruce , Wicks etc.

RB O0
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Ryan Allen
PostPosted: Sun Sep 11, 2022 4:05 pm 
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I cut my wings today for fresh air vents next to the fuselage a la Bob's method. I'm looking forward to cool air blowing me away.


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JDUB
PostPosted: Sun Sep 11, 2022 8:19 pm 
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Is there anyway you could post pictures or drawings of your work. I have folding wings and really like the simplicity of wing vents.


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Ryan Allen
PostPosted: Mon Sep 12, 2022 6:54 am 
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I cant add pictures/documents for some reason to my posts. It keeps telling me "could not upload." But, go to this link. Its a thread on this site about the same topic. Bob Highley posted a photograph document that I followed. Too easy.

viewtopic.php?f=30&t=7646&hilit=fresh+air


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JDUB
PostPosted: Mon Sep 12, 2022 4:27 pm 
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Thanks Ryan


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Ryan Allen
 Post subject: Carb Air Box
PostPosted: Tue Sep 20, 2022 7:52 pm 
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For those of you who have the "per plans" carburetor air box, would you please post some photos of your completed carb air box? I am having trouble getting this part visualized/built.


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bfinney
PostPosted: Thu Sep 22, 2022 12:46 am 
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Image

Image

Image

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Image

Note: my airbox is made with 3 pieces instead of 2 as shown on drawing -781

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Ryan Allen
PostPosted: Thu Sep 22, 2022 8:02 am 
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thats helps a bunch Bruce, thank you. I was having trouble understanding how the two (or 3 in your case) halves were joined from reading DWG 781. Now I see its a weld.


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Ryan Allen
 Post subject: What should I do here?
PostPosted: Wed Oct 05, 2022 12:16 pm 
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I cant decide which way to go here, so I am hoping you seasoned builders will give me your opinion. I am trying to decide which method of airbox installation will be the easiest path. I have 2 options:
1) Do I build the airbox per plans and hope it fits in my already built T18 lower cowl and scoop (if not, cut the cowl/reglass the scoop to fit) or
2) Do I use a Vans RV style airbox, cut the existing T18 lower cowl, glass in a Vans RV style air scoop into the existing cowl.


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leewwalton
PostPosted: Wed Oct 05, 2022 3:46 pm 
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Check the newsletters there's an updated air box design that will most likely fit in your cowl ... if not you cannot find it I have one in my shop I can take some pics for you replicate

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Ryan Allen
PostPosted: Wed Oct 05, 2022 5:41 pm 
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thank you Lee! I have renewed hope of not cutting up my lower cowl now.


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