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  #1  
Old 05-16-2019, 11:35 AM
Alchemist Alchemist is offline
 
Join Date: Mar 2014
Location: Glasgow, KY
Posts: 28
Default RV6-A Nose gear inspection

Hello,

A slight rotation was noticed when checking the break out force on my nose wheel, is this normal ? All SB's have been addressed regarding
the nose gear/wheel and it has no noticeable flaws while flying or landing.

https://www.youtube.com/watch?v=NjQ8wUIXw4U

Thanks for the help,
Justin
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  #2  
Old 05-16-2019, 12:20 PM
Bavafa Bavafa is offline
 
Join Date: Oct 2007
Location: Sacramento, CA
Posts: 2,910
Default

Honestly, I think that is a bit more than a slight. It will only get worse if left unchecked.

Many, including myself either replace the bolt on top with a close tolerance or even better go to a tapered bolt. You may also check to see if there is movement in the socket or just the bolt.
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  #3  
Old 05-16-2019, 12:32 PM
WingsOnWheels WingsOnWheels is offline
 
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Location: Plano, TX
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Default

As noted above, that needs to be addressed ASAP or it will get worse. With that much play, you will probably need the ream oversize or go with a taper bolt. The taper bolt is the better choice, but access is more of a problem.
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  #4  
Old 05-16-2019, 04:48 PM
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AlexPeterson AlexPeterson is offline
 
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Location: Maple Grove, MN
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Default

Start with the close tolerance bolt, it might fix the problem. They are a few thou larger in diameter than the standard ones. Do not try to simply clamp the bolt tight enough to keep the motion from happening - you will likely grossly over-torque the bolt.
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  #5  
Old 05-16-2019, 05:05 PM
blaplante blaplante is offline
 
Join Date: Jan 2010
Location: Southern California
Posts: 97
Default ground it now

ground it now. all you need is 1) continue to beat on the bolt, 2) get some nose wheel shimmy, and you'll eventually 3) shear off the bolt. Which will lead to a bad day.

I put in a close tolerance bolt, but mine wasn't this bad. The correct reamer to fit the close tolerance bolt was absurdly expensive so I think I found a reamer on eBay. Probably won't last 100 holes, but I only needed one!

I agree the taper pin is the way to go but I don't know how you'd get the taper cut without pulling the engine. Sorry!
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Last edited by blaplante : 05-16-2019 at 05:06 PM. Reason: clarification
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  #6  
Old 05-16-2019, 05:40 PM
pa38112 pa38112 is offline
 
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Location: Clarksboro, NJ
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Default

Quote:
Originally Posted by blaplante View Post
ground it now. all you need is 1) continue to beat on the bolt, 2) get some nose wheel shimmy, and you'll eventually 3) shear off the bolt. Which will lead to a bad day.

I put in a close tolerance bolt, but mine wasn't this bad. The correct reamer to fit the close tolerance bolt was absurdly expensive so I think I found a reamer on eBay. Probably won't last 100 holes, but I only needed one!

I agree the taper pin is the way to go but I don't know how you'd get the taper cut without pulling the engine. Sorry!

+1. This is a serious issue that can be a 30 minute fix. Take care of it now.
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  #7  
Old 05-16-2019, 05:51 PM
greghughespdx greghughespdx is offline
 
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The aircraft is not airworthy. Time to fix. Address it now and it should be fairly simple.
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  #8  
Old 05-16-2019, 07:12 PM
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Steve Melton Steve Melton is offline
 
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Location: Cincinnati, OH
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how about just a fresh bolt and check the play.
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  #9  
Old 05-17-2019, 05:46 AM
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RONSIM RONSIM is offline
 
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Location: Largo, FL
Posts: 924
Default Nose wheel stop flange in wrong position - THIS

could have caused your problem if in the past it had been installed wrong (probably was) --- I have seen this, just recently, during a condition inspection --- check service bulletin 14-12-22 - so easy to get it wrong, because "it looks right!"


Ron
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Last edited by RONSIM : 05-17-2019 at 11:48 AM. Reason: clarification
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  #10  
Old 05-17-2019, 06:17 AM
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bhester bhester is offline
 
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Location: Hopkinsville, KY
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Default Correctly installed

The flange in the video is correctly installed. It could have have been wrong sometime earlier.
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Last edited by bhester : 05-17-2019 at 06:26 AM.
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