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  #1  
Old 10-11-2016, 12:51 AM
skylor's Avatar
skylor skylor is offline
 
Join Date: Aug 2009
Location: Southern California
Posts: 566
Default Grove Gear Upper Brake Line Plumbing Pictures

For several years, I've been meaning to post some pictures of how I fabricated the upper brake line plumbing on my Grove aluminum gear legs. My goal when I plumbed them was to use the "stock" bulkhead fitting location inside the gear towers. I finally remembered to snap a few quick pictures during my last annual. There is ample clearance around the lines allthough it may not appear so in the pictures. When these shots were taken, the airframe had about 510 hours on it and there is no evidence of rubbing or leaks Hopefully some future builders will find these helpful.








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RV-8
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  #2  
Old 10-11-2016, 01:06 AM
xblueh2o xblueh2o is offline
 
Join Date: Apr 2011
Location: SF East Bay
Posts: 716
Default

This is why I donate yearly for this site.
I just finished drilling/mounting my Grove gear and was thinking about how to route lines for the brakes. I had a different routing in mind but this seems cleaner but now I have to ask, how much of a pain in the rear was it to tighten up the nuts? Granted in theory you only do it once but it doesn't look like much fun.
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RV-8 with the Showplanes Fastback conversion
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  #3  
Old 10-11-2016, 04:34 AM
schmitty340 schmitty340 is offline
 
Join Date: Sep 2010
Location: Louisville
Posts: 72
Default

Here is the way I did it. 400 hrs and no problems. I use the vent hole for the brake line and the brake hole for the jd air vent. I did have to fab new cover plates.



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  #4  
Old 10-11-2016, 08:17 AM
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  #5  
Old 10-11-2016, 09:50 AM
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skylor skylor is offline
 
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Location: Southern California
Posts: 566
Default B-Nuts

Quote:
Originally Posted by xblueh2o View Post
I have to ask, how much of a pain in the rear was it to tighten up the nuts? Granted in theory you only do it once but it doesn't look like much fun.
Tightening the nuts really isn't as bad as it looks. I was able to use reasonably small open end wrenches for this (1 to support the fitting, the other to turn the B-Nut).

Skylor
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  #6  
Old 10-11-2016, 03:38 PM
judoka5051 judoka5051 is offline
 
Join Date: Aug 2010
Location: Stuart, FL
Posts: 192
Default Almost there!

I'm waiting for my airfoil gear legs, so this is perfect timing, thanks for the pics guys!
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  #7  
Old 10-11-2016, 09:51 PM
xblueh2o xblueh2o is offline
 
Join Date: Apr 2011
Location: SF East Bay
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Also looking at everybody's pictures and how much they had to relieve the skin to make the Grove outer saddles fit. Mine look about the same (haven't taken any pictures yet) and I might convert the two outer plate nuts to one lugs. I am also very close on a couple of the bottom skin rivets too.
Dan, I see you had to modify the aft outer wear plate access hole in the skin when you opened it up to align it with the bolt head. When I laid that wear plate on top of the skin and noted the pre-punch holes didn't line up I was wondering if I was doing something wrong. Once again, it is threads like this that make the donation worth every penny.
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RV-8 with the Showplanes Fastback conversion
Emp completed except for glass work
Wings completed except for bottom skin and glass work
Fuselage underway
N18451 reserved
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  #8  
Old 10-12-2016, 04:00 AM
SuperCubDriver SuperCubDriver is offline
 
Join Date: Feb 2011
Location: Germany
Posts: 286
Default

I drilled an extra hole beside the (Grove) gear leg. Here I inserted the aluminum brake line from below and connected it to the gear leg. Then I formed the brake line inside the gear tower. It is replacable from below if necessary.

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  #9  
Old 10-12-2016, 09:45 AM
BenNabors BenNabors is offline
 
Join Date: Mar 2014
Location: Alabama
Posts: 120
Default Potenital issue

Long screw in the lower left corner, and well you are screwed. I have seen it happen on other applications. Nasa lost the Tethered Satellite this way, the longer bolt jammed the reel. In this case a longer screw would puncture the line.


[quote=skylor;1117862]

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  #10  
Old 10-12-2016, 06:12 PM
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sapeloson sapeloson is offline
 
Join Date: Nov 2009
Location: Jesup, GA
Posts: 130
Default It took me over a year to figure this one out!

After starting and stopping on this one thing a dozen or more times, I finally stumbled onto this setup! This was by far the tuffest thing I've had to figure out. I had seen the folks that swaped the vent lines but, I didn't like that..... I've ordered almost every AN fitting that ACS has. I finally tried some brake lines that didn't fit on the bottom and a couple of the fittings I'd ordered prior, with a new hole beside the vent line and BAM, it worked great on the top! Thanks a bunch to TS Flightlines! FYI: The extra hole was approved by "builders help"



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