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05-26-2015, 06:29 PM
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Join Date: Dec 2009
Location: St Louis, MO
Posts: 956
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Broken NACA vent- need advice
The rear NACA vent stem broke from the knob and I can't figure out an easy fix. Can I order a new vent and scavenge the parts I need? Any other ideas?
Need help, pics attached,
Oly
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RV-8, Flying
Previous airplanes: Corby Starlet, Citabria, Cessna 140, Vari-Viggen, RV-3, RV-4
RV grin every flight
"Sure is nice to have smart friends"
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Last edited by olyolson : 07-23-2019 at 09:09 AM.
Reason: Update info
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05-30-2015, 08:13 AM
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Join Date: Dec 2009
Location: St Louis, MO
Posts: 956
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Broken Vent
No response, guess these things don't break often. Anyone have any of these vents from a project or parts bin? I may be able to salvage the parts I need to make mine work. I was able to secure it in the closed position with a countersunk screw threaded though the inner shroud but would like to be able to have the back seater open the vent as needed.
Let me know if anyone has a complete assembly or whatever parts you have.
Oly
__________________
RV-8, Flying
Previous airplanes: Corby Starlet, Citabria, Cessna 140, Vari-Viggen, RV-3, RV-4
RV grin every flight
"Sure is nice to have smart friends"
2018 dues paid
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05-30-2015, 09:29 AM
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VAF Moderator / Line Boy
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Join Date: Jan 2005
Location: Dayton, NV
Posts: 12,243
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I could be wrong, but I think that is a custom part, or somethign I haven't seen sold by anyone for a long time - that might account for the lack of responses. I don't THINK it was ever a Van's part.....
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Paul F. Dye
Editor at Large - KITPLANES Magazine
RV-8 - N188PD - "Valkyrie"
RV-6 (By Marriage) - N164MS - "Mikey"
RV-3B - N13PL - "Tsamsiyu"
A&P, EAA Tech Counselor/Flight Advisor
Dayton Valley Airpark (A34)
http://Ironflight.com
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05-30-2015, 11:10 AM
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Join Date: Sep 2007
Location: Central IL
Posts: 5,514
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It looks like a standard part from a Velocity = http://wiki.velocityoba.com/index.ph...e_Heat_Control
Why don't you just fix it. Click bond makes some glue on studs. Doesn't look too hard.
__________________
Bill
RV-7
Lord Kelvin:
“I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.”
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05-30-2015, 07:06 PM
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Join Date: Dec 2010
Location: Fairfax, VT
Posts: 66
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Try PLASTIC SUPER GLUE 386855
I had my NACA vent shaft break and glued the shaft back with plastic super glue 386855.
Comes with a liquid primer to condition the plastic. The glue itself is a gel.
The vent broke at 36 flight hours and I now have 908 hours and it is still working.
Regards,
Bill
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05-30-2015, 08:33 PM
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Join Date: Sep 2008
Location: California
Posts: 697
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Those look like canard parts, no longer made. There was a repair kit available for some time but gone now.
I have a complete spare I'm saving for "some day"....
Like others suggested, work out a repair for the shaft. Homebuilt fabrication......
Last edited by flyingriki : 05-30-2015 at 08:38 PM.
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06-01-2015, 06:48 AM
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Join Date: Dec 2009
Location: St Louis, MO
Posts: 956
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Broken Vent
Thanks for the tips, I think I might have found a plastic threaded stud from Click Bond that might work. If it is the right size, will thread it through the inner shroud and glue the stud to the outer vent door. I do have it locked in the closed position right now but obviously want to have it operational for the back seater. I do have an LV-3 type ventilator in the back as well so there is a decent amount of air flowing. In the hot, humid Missouri summers, more air is definitely better.
I would have just glued the old stud in place but it came apart in 3 pieces and had a lot of stress cracks and deterioration in the plastic stud. If it works, I will post pics and info on the part number in case anyone else has the problem.
Oly
__________________
RV-8, Flying
Previous airplanes: Corby Starlet, Citabria, Cessna 140, Vari-Viggen, RV-3, RV-4
RV grin every flight
"Sure is nice to have smart friends"
2018 dues paid
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