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  #1  
Old 07-29-2018, 01:45 PM
JimMac JimMac is offline
 
Join Date: Jun 2012
Location: Madison, AL
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Default Drilling axle cotter pin hole

Is it OK to drill out the main axle cotter pin hole to #30 so that a standard 1/8 in. Cotter pin will work?
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Jim McCarter
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RV-12 N864RV 90 hrs TT

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  #2  
Old 07-29-2018, 01:49 PM
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Piper J3 Piper J3 is offline
 
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Why not just get the correct pin?
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Jim Stricker
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PPL/ASEL 1970 Sport Pilot since 2004
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  #3  
Old 07-29-2018, 02:44 PM
JimMac JimMac is offline
 
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Jim, I ordered pins from Van’s a while back, but they wouldn’t fit. They were barely too big. I’ve had trouble finding the correct part number for this part. It is not identified in the RV12 construction manual.
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Old 07-29-2018, 02:59 PM
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Piper J3 Piper J3 is offline
 
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Look here....https://www.aircraftspruce.com/catal...otterpins2.php
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Jim Stricker
Hinckley, Ohio
EAA #499867
PPL/ASEL 1970 Sport Pilot since 2004
80 hrs Flying Aeronca Chief 11AC
1130 hrs Flying 46 Piper J-3 Cub
RV-12 E-LSA #120058 AWC Jul 2012 - Bought Flying Oct 2015 with 48TT - Hobbs now 380

LSRM-A Certificate 2016
Special Thanks to EJ Trucks
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  #5  
Old 07-29-2018, 03:10 PM
JimMac JimMac is offline
 
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Quote:
Originally Posted by Piper J3 View Post
Well, I went to the link you suggested and I’m sure the pin I need is one of the 30 listed on that page, but which one do I order? I believe a 3/32 diameter will fit through the hole. Do I order one of those of the correct length?
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RV-12 N864RV 90 hrs TT

Donation Made for 2018
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  #6  
Old 07-29-2018, 03:18 PM
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Piper J3 Piper J3 is offline
 
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Do you any tools to measure the hole? Perhaps use a drill bit of known size to test fit. Then yes, buy correct length...
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Jim Stricker
Hinckley, Ohio
EAA #499867
PPL/ASEL 1970 Sport Pilot since 2004
80 hrs Flying Aeronca Chief 11AC
1130 hrs Flying 46 Piper J-3 Cub
RV-12 E-LSA #120058 AWC Jul 2012 - Bought Flying Oct 2015 with 48TT - Hobbs now 380

LSRM-A Certificate 2016
Special Thanks to EJ Trucks
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  #7  
Old 07-29-2018, 04:19 PM
JimMac JimMac is offline
 
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The That痴 a good idea. I値l see if I can determine if the hole is actually a tad undersized by seeing if a 1/8 in bit will fit through it. If it won稚, I値l try a 7/64. I suspect I値l end up getting a 3/16. I will probably end up getting the MS24665-289. But I wish a few more people would respond and tell me PRECISELY what they used. I think I値l call MATCO tomorrow since the axle and associated parts are their products. I知 sure they can tell me. As I was researching this, I did run across another part number for this cotter pin on the MATCO site: MSC.125X2COTTERPIN. Someone said that the .125 indicated 1/8, but it is actually a shade smaller. It was mentioned that this the pin MATCO actually supplies with the axle. I just wasn稚 sure that this particular MATCO axle was the RV12 axle.
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  #8  
Old 07-29-2018, 04:36 PM
JimMac JimMac is offline
 
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Oops! In previous post, I meant 3/32 instead of 3/16.
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  #9  
Old 07-29-2018, 05:00 PM
sf3543 sf3543 is offline
 
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I drilled all my plane axle holes to #30.
Nothing has fallen off yet.
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  #10  
Old 07-29-2018, 06:18 PM
JimMac JimMac is offline
 
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Thanks Steve,
Did you use a MS24664-359 cotter pin after drilling it to #30?
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