Today's Message Index:
----------------------
1. 04:13 AM - Re: Elevator HELP! (Dave Toy) (Towertoy@AOL.com)
2. 07:50 AM - Re: Elevator HELP! (flyseaplane)
3. 09:18 AM - Re: Re: Elevator HELP! (Dave Toy) (John Adams)
4. 09:24 AM - Recall: Re: Elevator HELP! (Dave Toy) (John Adams)
5. 09:54 AM - Re: Re: Elevator HELP! (Dave Toy) (Rob Prior)
Message 1
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| Subject: | Re: Elevator HELP! (Dave Toy) |
--> RV7-List message posted by: Towertoy@aol.com
Original Message:
Hi Guys,
Looking for any GOOD suggestions. Here's the problem...
Just finished my RV7 tail kit and was installing the rod end bearings for
the right elevator, when to my surprise I found one of the nutplates (center
one on the right elevator) has NO threads in it!!
Please don't tell me I should have checked them - I already heard
that...from Van's! Who'd a thunk to check those things. After building 3
tail kits, and 1 flying RV6, I've never seen a nutplate with no threads.
Anyway, Van's is still searching for some other answer short of
dissasembling the elevator. If that's the case I'll just build another one
from scratch.
If you have any bright ideas, feel free to let me know!
Just my typical luck, if there is one nutplate in every 2 million that
doesn't get threaded, I'll end up with it!
Cheers,
Stein Bruch
RV6/N664SB 90+hrs
RV7/N174SB Trying to finish the tail!
Time: 02:40:49 PM PST US
From: "Stein Bruch" <stein@steinair.com>
Subject: RE: RV7-List: Elevator HELP! - Solution
--> RV7-List message posted by: "Stein Bruch" <stein@steinair.com>
Ok Guys,
Here's the official "Stein" solution. I'm going to drill out the old one,
shake it out the end of the elevator, and "fish" a new one in with a piece
of safety wire and use cherries to rivet in place. Probably will be lots of
uncouth words in my garage during the process, but I'll get it done!
Thanks for the advice,
Stein Bruch,
Minneapolis
>>>>>Reply
Hi Stein,
I have watched some sheet metal specialists do what you are going to do while
working on fighters.
Take a length of safety wire and wrap a small ball of the wire (large enough
to grab the nut plate but small enough to go though the structure) in the middle
of the length. Fish it through the nut plate and then out a hole large
enough to get the nut plate out of the elevator before you drill out the attaching
rivets. Drill out the rivets. When the nut plate is loose in the elevator
pull the wire out of the elevator. Since the ball of wire is in the middle
of the length of wire, the wire is now routed correctly to get the new nut plate
into the elevator.
Cut the ball out of the middle of the wire, thread the new nut plate onto
the wire and make a new ball to hold the nut plate on the wire. Pull the nut
plate into position. You can then hold it tight against the structure to install
new rivets.
Have fun,
Dave Toy
Towertoy@aol.com
Message 2
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| Subject: | Re: Elevator HELP! |
--> RV7-List message posted by: "flyseaplane" <flyseaplane@netzero.net>
I'm with Phil Birkelbach on this one, as I have tapped out nutplates many
times before with no ill effects. Most of the time it is to get rid of the
self-locking feature, so they don't destroy stainless screws (which they
do - the screws are softer) in areas that are opened frequently, like the
cowling. It doesn't take much tapping either to do the trick. If you have a
nutplate with no threads at all, you could tap it very carefully so that you
do not tap it out too large, and then it may still have some self-locking
ability.
Loctite works great, and I trust a threaded nutplate with a dab of Loctite.
Happy Building,
Linc
> What reasons did they give for 'throwing it out'? I would like to know so
> that I can add the experience to my head. :-)
>
> Godspeed,
> Phil Birkelbach - Houston Texas
Message 3
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| Subject: | Re: Elevator HELP! (Dave Toy) |
--> RV7-List message posted by: John Adams <jadams@scoutmedical.com>
I think I would tap it and then try to get a lock nut on it some how behind
the nut plate. Cut a hole perhaps. Also, you could install the bolt with
lock tight after you tap it. I'm not an A&P so just my ideas.
John Adams
-----Original Message-----
From: Towertoy@AOL.com [mailto:Towertoy@AOL.com]
Subject: RV7-List: Re: Elevator HELP! (Dave Toy)
--> RV7-List message posted by: Towertoy@aol.com
Original Message:
Hi Guys,
Looking for any GOOD suggestions. Here's the problem...
Just finished my RV7 tail kit and was installing the rod end bearings for
the right elevator, when to my surprise I found one of the nutplates (center
one on the right elevator) has NO threads in it!!
Please don't tell me I should have checked them - I already heard
that...from Van's! Who'd a thunk to check those things. After building 3
tail kits, and 1 flying RV6, I've never seen a nutplate with no threads.
Anyway, Van's is still searching for some other answer short of
dissasembling the elevator. If that's the case I'll just build another one
from scratch.
If you have any bright ideas, feel free to let me know!
Just my typical luck, if there is one nutplate in every 2 million that
doesn't get threaded, I'll end up with it!
Cheers,
Stein Bruch
RV6/N664SB 90+hrs
RV7/N174SB Trying to finish the tail!
Time: 02:40:49 PM PST US
From: "Stein Bruch" <stein@steinair.com>
Subject: RE: RV7-List: Elevator HELP! - Solution
--> RV7-List message posted by: "Stein Bruch" <stein@steinair.com>
Ok Guys,
Here's the official "Stein" solution. I'm going to drill out the old one,
shake it out the end of the elevator, and "fish" a new one in with a piece
of safety wire and use cherries to rivet in place. Probably will be lots of
uncouth words in my garage during the process, but I'll get it done!
Thanks for the advice,
Stein Bruch,
Minneapolis
>>>>>Reply
Hi Stein,
I have watched some sheet metal specialists do what you are going to do
while working on fighters.
Take a length of safety wire and wrap a small ball of the wire (large
enough to grab the nut plate but small enough to go though the structure) in
the middle of the length. Fish it through the nut plate and then out a hole
large enough to get the nut plate out of the elevator before you drill out
the attaching rivets. Drill out the rivets. When the nut plate is loose in
the elevator pull the wire out of the elevator. Since the ball of wire is
in the middle of the length of wire, the wire is now routed correctly to get
the new nut plate into the elevator.
Cut the ball out of the middle of the wire, thread the new nut plate
onto the wire and make a new ball to hold the nut plate on the wire. Pull
the nut plate into position. You can then hold it tight against the
structure to install new rivets.
Have fun,
Dave Toy
Towertoy@aol.com
Message 4
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| Subject: | Re: Elevator HELP! (Dave Toy) |
--> RV7-List message posted by: John Adams <jadams@scoutmedical.com>
John Adams would like to recall the message, "RV7-List: Re: Elevator HELP!
(Dave Toy)".
Message 5
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| Subject: | Re: Elevator HELP! (Dave Toy) |
--> RV7-List message posted by: Rob Prior <rv7@b4.ca>
Forgive me John for using your email as an example, but i'm wondering if
someone can enlighten me.
I've seen a number of people suggest tapping it and then finding some
other way to lock the threads once the rod-end-bearing is installed,
either with loctite or a locking nut on the back. Why is this necessary?
My understanding of the configuration is, the nutplate holds the nut
insert fixed, preventing rotation. The rod-end-bearing, due to the fact
that it's going to be used as a hinge, can't rotate either. So why is
locking hardware necessary?
Just curious...
-RB4
rv7 "at" b4.ca
RV-7 Empennage
John Adams wrote:
> --> RV7-List message posted by: John Adams <jadams@scoutmedical.com>
>
> I think I would tap it and then try to get a lock nut on it some how behind
> the nut plate. Cut a hole perhaps. Also, you could install the bolt with
> lock tight after you tap it. I'm not an A&P so just my ideas.
> John Adams
>
> --> RV7-List message posted by: Towertoy@aol.com
>
> Just finished my RV7 tail kit and was installing the rod end bearings for
> the right elevator, when to my surprise I found one of the nutplates (center
> one on the right elevator) has NO threads in it!!
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