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  #1  
Old 03-01-2009, 11:24 AM
rkochcyxh rkochcyxh is offline
 
Join Date: Oct 2005
Posts: 75
Post Rudder brake pedals and Plastic block

I'm trying to mount the rudder and brake pedals (WD 655L and WD655R) in the hard plastic blocks(F6116) The pre drilled holes are really tight. Does a person use a hammer to tap them in or should I sand down the WD 655L & R so that the fit just slides together. Also if I tap it together will it become loser with time.
Thanks
Russel Koch
RV9A QB fuselage
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  #2  
Old 03-01-2009, 11:34 AM
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pierre smith pierre smith is offline
 
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Default Hi Russel...

....we just went throught the same thing on our -7 yesterday. If the tubes are rust-free, the fit is still snug but you'd be surprised at how little foot pressure it takes since you've got quite a bit of leverage. Yep, they're snug and sometimes it takes some tapping.

Regards,
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Last edited by pierre smith : 03-01-2009 at 11:35 AM. Reason: grammar
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  #3  
Old 03-01-2009, 11:35 AM
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JonJay JonJay is offline
 
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Default Make sure they are not powder coated there

The ends of the weldment going into the block should not be powder coated. This has been a problem in the past. If they are, simply mask off and remove the powder coating with paint remover. This will give you the clearance you need.
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  #4  
Old 03-01-2009, 09:11 PM
Sully Sully is offline
 
Join Date: Jan 2008
Location: Euless, TX
Posts: 64
Default

Quote:
Originally Posted by rkochcyxh View Post
I'm trying to mount the rudder and brake pedals (WD 655L and WD655R) in the hard plastic blocks(F6116) The pre drilled holes are really tight. Does a person use a hammer to tap them in or should I sand down the WD 655L & R so that the fit just slides together. Also if I tap it together will it become loser with time.
Thanks
Russel Koch
RV9A QB fuselage
On my 7 they were tight but I could drive them on by hand, oh and the holes are not normal to the surface so it went a lot smoother after I got em aligned.
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  #5  
Old 03-02-2009, 05:28 AM
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Brantel Brantel is offline
 
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Location: Newport, TN
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Default

Yep make sure you take Sully's advice as these are angled to match the shape of the fuse.

Make sure there are no burrs/rough edges on the tubes.

One thing I did was found a socket that was just too large to go into the hole. I heated the block up with a heat gun and inserted the socket. Once the block cooled, I pulled the socket and the brake tubes slid right in and work nice. Don't overdo it with this method as you don't want sloppy holes either.

Good luck.
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  #6  
Old 03-03-2009, 05:16 AM
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SmittysRV SmittysRV is offline
 
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Default

These blocks are near impossible to put on the rudder pedal tubes with just your bare hands. So I remembered how my Dad would used his rubber hammer to gently put kitchen cabinet parts together with his rubber hammer. Here I put the first Bearing Block on the floor and positioned the rudder pedal tubes over the holes. Then I gently tapped the end of the tubes into the block.



Same thing here. I flipped the rudder pedal tubes over and gently tapped the other block on to the other end of the tubes.



Here my log entry:
http://www.smittysrv.com/more_stuff.asp?ID=586
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Last edited by SmittysRV : 03-03-2009 at 05:19 AM.
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  #7  
Old 03-03-2009, 07:28 AM
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Noel Simmons Noel Simmons is offline
 
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Default or the other approch

I like to polish the ends of the steel tubing until they slip into the plastic block. I like reduced friction.
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  #8  
Old 03-03-2009, 03:47 PM
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swisseagle swisseagle is offline
 
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Location: 20km outside of Zurich, Switzerland
Posts: 468
Default Check dimension first!

Hello

Check first that there is no burr on the plastic and on the steel tube. mesure the dimension of the tube on up to 4 positions, you will find the tube is NOT round. This due to the welding process. I just remove a bit material with a fine file and cloth on the "high" spots, untill the tubes rotate more freely in the plastic, but dont overdoo it!

Also you should NOT use mineral oil as lubricant on plastic, but sorry, I cant remember the right stuff, silicon based or syntetic ... not sure.

regards, Dominik
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