Home > VansAirForceForums

- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics

Old 10-19-2018, 09:01 PM
az_gila's Avatar
az_gila az_gila is offline
Join Date: Jan 2005
Location: 57AZ - NW Tucson area
Posts: 9,903

Originally Posted by DeltaVee47 View Post
Thanks to everyone for the great ideas. I especially like Gil’s idea in post #20. ...

Last question (for now). How is running a tap through the lock ring of the nutplate different from forcing the designated screw through the lock ring?
Simpler answer - the tap has a cutting edge and removes material, the screws do not.
Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
Old 10-20-2018, 02:05 PM
sahrens's Avatar
sahrens sahrens is offline
Join Date: Jan 2007
Location: Northern CA
Posts: 449

Well, I guess I will jump back in to the conversation. Please review page 8-5 of the Vans RV-7 build manual where they state "it is acceptable to run an 8-32 tap through the nutplates." This is in reference to the seat pans and the outer ribs.

They do not say to do it indiscriminately and neither did I.

Have fun with the conversation.
RV-7 N818BG (flying)
Bearhawk Patrol (building)
Old 10-23-2018, 09:45 AM
maniago's Avatar
maniago maniago is offline
Join Date: Aug 2014
Location: Bowie MD
Posts: 860
Default ***Sigh***

I think I've seen this discussion come up at least once every year, and the same fighting camps emerge. Its almost a religious argument with all kinds of half truths and hard over suppositions. IMHO, one needs to evaluate where the nut plate is going and what its expected purpose is, and indeed they have two purposes - to act as a nut where access to said nut not simple or desired, and/or to act as a locking nut where said nut etc....

I run a tap thru my nutplates when I'm going to be doing a lot of screw insertion and removal of said part - which when you are ex-peri-ment-ing, that happens alot. If I need that plate in the final insertion, and forever more to be a locker, then it either gets replaced, or much more likely, the screw gets safety wired, or Locktited or the nutplate gets re-squeezed. OMG - Resqueezed! Imagine that.

Theres more than one correct way to skin this cat, and its application specific. One would think with the proper application of common engineering sense, we could all at least agree on that.
MustangII (FoldingWing) "Finishing up": IO360B1E,RSA,C2YR-BF/F7666-2,Superior sump,James; 2xHXr,MiniX,EIS,480,327,240,SL30,Navworx; SteamAlt,AS,VSI,wet compass
Don't be a hater; I'm a cousin with thin wings!
N251Y (res)

Last edited by maniago : 10-23-2018 at 02:08 PM.
Old 10-23-2018, 10:35 AM
rzbill's Avatar
rzbill rzbill is offline
Join Date: Nov 2005
Location: Asheville, NC
Posts: 2,591

Originally Posted by maniago View Post
Theres more than correct way to skin this cat, and its application specific. One would think with the proper application of common engineering sense, we could all at least agree on that.
In keeping with Maniago's post about alternatives:

Instead of tapping, I used a different type of aviation #8 screw in the problem areas (not just the pan edges but anywhere using a Phillips would be a pain. With these 'drop in replacement' hex heads, they are a breeze to install/remove without killing yourself with effort to keep the Phillips engaged. (READ: It makes electric screwdriver work for real. EVERYWHERE)

Here is a Spruce Link:
NAS1801-08-07 Hex head screws

I think these things are wonderful.
Bill Pendergrass
ME/AE '82
RV-7A: Flying since April 15, 2012. 800 hrs
YIO-360-M1B, mags, CS, GRT EX and WS H1s & A/P, Navworx
Unpainted, polished....kinda'... Eyeballin' vinyl really hard.

Last edited by rzbill : 10-23-2018 at 10:42 AM.
Old 10-23-2018, 05:39 PM
N941WR's Avatar
N941WR N941WR is offline
Join Date: Jan 2005
Location: SC
Posts: 12,186

Chapsticks work great for lubricating screws and I used cap screws w
Every place i could.

I think the only place that has 8-32 pan head screws is under the seat cushions; however, along the sides of the seat pans are cap screws.
Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
Closed Thread

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -6. The time now is 12:24 PM.

The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.