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kearney
Joined: 20 Sep 2008
Posts: 563
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 Posted: Fri Feb 26, 2010 8:28 pm Post subject: Reinforcing screw holes on wheel pants |
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Okay,
After being severely repremanded about glassing in the nose wheel mounting bracket, I have finished mounting my pants per the plans. Now I am concerned that the screw holes are somewhat enlarged due to countersinking and will fail over time. Is there a preferred way to reinforce screw holes in fiberglass.
Inquiring mindfs need to know.
Les
#40643
[quote][b]
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rv10builder(at)verizon.ne
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| Posted: Fri Feb 26, 2010 8:45 pm Post subject: Reinforcing screw holes on wheel pants |
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If I recall correctly you should have some flox between the screw holes and bracket.. so there should be plenty of strength, you can use a countersunk washer, forget the screw size, but they sell them for all sizes. Good thing about fiberglass is you can just flow the hole in the inside again throw a few layers of glass on top and start over in a year or two if there is a problem.
From: Les Kearney (kearney(at)shaw.ca)
Sent: Friday, February 26, 2010 8:26 PM
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Subject: Reinforcing screw holes on wheel pants
Okay,
After being severely repremanded about glassing in the nose wheel mounting bracket, I have finished mounting my pants per the plans. Now I am concerned that the screw holes are somewhat enlarged due to countersinking and will fail over time. Is there a preferred way to reinforce screw holes in fiberglass.
Inquiring mindfs need to know.
Les
#40643
[quote]
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[b]
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ricksked(at)cox.net
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| Posted: Fri Feb 26, 2010 8:51 pm Post subject: Reinforcing screw holes on wheel pants |
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Les use stainless countersink washers on the glass, brush thinned epoxy on the fiberglass before using the washers, this will reinforce the hole, the washer will distribute the load.
Sent via BlackBerry by AT&TFrom: "Les Kearney" <kearney(at)shaw.ca>
Date: Fri, 26 Feb 2010 21:26:58 -0700
To: <rv10-list(at)matronics.com>
Subject: RV10-List: Reinforcing screw holes on wheel pants
Okay,
After = being severely=20 repremanded about glassing in the nose wheel mounting bracket, I have = finished=20 mounting my pants per the plans. Now I am concerned that the screw holes = are=20 somewhat enlarged due to countersinking and will fail over time. Is = there a=20 preferred way to reinforce screw holes in = fiberglass.
Inquiring mindfs=20 need to know.
Les
#40643
[quote][b]
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kearney
Joined: 20 Sep 2008
Posts: 563
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| Posted: Sun Feb 28, 2010 7:54 am Post subject: Reinforcing screw holes on wheel pants |
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Rick
Well after putting my wheel pants for the nth time, one of the screws pulled through before I could get some countersunk washers. The nice thing about fiberglass, perhaps the only thing, is you can alsways repair a proplem to "like new".
What did you use to thin the epoxy (I haven't tried that yet)?
I was wondering if you made the washers "flush" with the surface of the pants? Did you recess them, build up the material around them with something like Superfil or just leave them proud of the wheel pant to be painted?
Inquiring mind need to know
Les
#40643
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of ricksked(at)cox.net
Sent: February-26-10 9:45 PM
To: rv10-list(at)matronics.com
Subject: Re: Reinforcing screw holes on wheel pants
Les use stainless countersink washers on the glass, brush thinned epoxy on the fiberglass before using the washers, this will reinforce the hole, the washer will distribute the load.
Sent via BlackBerry by AT&T From: "Les Kearney" <kearney(at)shaw.ca>
Date: Fri, 26 Feb 2010 21:26:58 -0700
To: <rv10-list(at)matronics.com>
Subject: Reinforcing screw holes on wheel pants
Okay,
After = being severely=20 repremanded about glassing in the nose wheel mounting bracket, I have = finished=20 mounting my pants per the plans. Now I am concerned that the screw holes = are=20 somewhat enlarged due to countersinking and will fail over time. Is = there a=20 preferred way to reinforce screw holes in = fiberglass.
Inquiring mindfs=20 need to know.
Les
#40643
| Quote: |
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¦·~‰²,g–ÓÓ [quote][b]
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carl.froehlich(at)verizon
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| Posted: Sun Feb 28, 2010 8:29 am Post subject: Reinforcing screw holes on wheel pants |
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I use stainless steel tinnermans with stainless steel flush screws on all fiberglass (spinner, empennage fairing, pants, etc.). The fiberglass is countersunk enough for the tinnermans to be flush. The tinnermans go on top of the final paint. I like the look.
You end up with the screw spreading the clamping force over a much larger area than the screw head and on non-counter sunk fiberglass.
Carl Froehlich
RV-8A (525 hrs)
RV-10 (systems install)
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Les Kearney
Sent: Sunday, February 28, 2010 10:54 AM
To: rv10-list(at)matronics.com
Subject: RE: Reinforcing screw holes on wheel pants
Rick
Well after putting my wheel pants for the nth time, one of the screws pulled through before I could get some countersunk washers. The nice thing about fiberglass, perhaps the only thing, is you can alsways repair a proplem to "like new".
What did you use to thin the epoxy (I haven't tried that yet)?
I was wondering if you made the washers "flush" with the surface of the pants? Did you recess them, build up the material around them with something like Superfil or just leave them proud of the wheel pant to be painted?
Inquiring mind need to know
Les
#40643
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of ricksked(at)cox.net
Sent: February-26-10 9:45 PM
To: rv10-list(at)matronics.com
Subject: Re: Reinforcing screw holes on wheel pants
Les use stainless countersink washers on the glass, brush thinned epoxy on the fiberglass before using the washers, this will reinforce the hole, the washer will distribute the load.
Sent via BlackBerry by AT&T
From: "Les Kearney" <kearney(at)shaw.ca>
Date: Fri, 26 Feb 2010 21:26:58 -0700
To: <rv10-list(at)matronics.com>
Subject: Reinforcing screw holes on wheel pants
Okay,
After = being severely=20 repremanded about glassing in the nose wheel mounting bracket, I have = finished=20 mounting my pants per the plans. Now I am concerned that the screw holes = are=20 somewhat enlarged due to countersinking and will fail over time. Is = there a=20 preferred way to reinforce screw holes in = fiberglass.
Inquiring mindfs=20 need to know.
Les
#40643
| Quote: | | 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3Dhref='3D"http://www.matronics.com/Navigator?RV10-List"'>http://www.matronics.com/Navigator?RV10-List3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3Dhref='3D"http://forums.matronics.com"'>http://forums.matronics.com3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3Dhref='3D"http://www.matronics.com/contribution"'>http://www.matronics.com/contribution3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D |
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AirMike
Joined: 27 Feb 2007
Posts: 514
Location: Nevada
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| Posted: Sun Feb 28, 2010 9:05 am Post subject: Reinforcing screw holes on wheel pants |
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I shoved some pieces of GRP that I had cut off of the doors (window) under the screw holes (epoxy/flox glue) and they are tight and tough.
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