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IFLYSMODEL(at)AOL.COM
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 Posted: Fri Jun 04, 2010 10:48 am Post subject: Wheel Balance |
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Hey Bear: I guess I missed your message. How did the new type of tire balance work for you?
Lynn
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n5pb(at)aol.com
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| Posted: Mon Jun 07, 2010 8:13 am Post subject: Wheel Balance |
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Lynn,
I put 1 ounce into the nose wheel and did 3 full takeoffs and landings with breaking and taxi back.
the shimmy I've experienced seem not to be there so I decided to put 1.5 ounces in each of the mains. When I got to the left main to remove the wheel, two of the 3 bolts that hold the wheel rimms together were missing and the 3rd one was just hanging in place. I was pretty stunned to see this (as you can imagine). The one remaining one looked as though it had been sheared off. I did a FOD walk around the local taxi area and found another piece of a bolt (this one still had the nut in place, but missing the head portion-appearing to be sheared off as well. Still haven't found the 3rd bolt.
As a result of this, I haven't proceeded with the install of the dyna beads in either of the mains yet. More to follow...
I would suggest everyone check their main rim bolts and nuts to make sure they are secure.
Bear
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wampam
Joined: 20 Oct 2008
Posts: 49
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| Posted: Mon Jun 07, 2010 8:45 am Post subject: Wheel Balance |
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I did try dyna beads on the mains and really did not notice much of a difference. The biggest effect was by adjusting the tire pressure, tightening the axel nut so the drag on each main was approximately the same and going to 6 ply tires. This provided a noticeable improvement with tracking during taxi and an improvement in shimmy. It is still noticeable on rollout, however. Dyna bead effectiveness is related to tire diameter and rotation speed and 20 to 30 MPH seems to be where they are just starting to be effective with this size of tire.
Walt Mefford
N881WP
From: owner-lightning-list-server(at)matronics.com [mailto:owner-lightning-list-server(at)matronics.com] On Behalf Of n5pb(at)aol.com
Sent: Monday, June 07, 2010 9:12 AM
To: lightning-list(at)matronics.com
Subject: Re: Wheel Balance
Lynn,
I put 1 ounce into the nose wheel and did 3 full takeoffs and landings with breaking and taxi back.
the shimmy I've experienced seem not to be there so I decided to put 1.5 ounces in each of the mains. When I got to the left main to remove the wheel, two of the 3 bolts that hold the wheel rimms together were missing and the 3rd one was just hanging in place. I was pretty stunned to see this (as you can imagine). The one remaining one looked as though it had been sheared off. I did a FOD walk around the local taxi area and found another piece of a bolt (this one still had the nut in place, but missing the head portion-appearing to be sheared off as well. Still haven't found the 3rd bolt.
As a result of this, I haven't proceeded with the install of the dyna beads in either of the mains yet. More to follow...
I would suggest everyone check their main rim bolts and nuts to make sure they are secure.
Bear
--
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