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  #1  
Old 06-25-2017, 04:25 PM
Freightdawg's Avatar
Freightdawg Freightdawg is offline
 
Join Date: Apr 2013
Location: New Albany, IN
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Default Section 36 Brake Lines

I'm already off to a bad start, which is to say no start at all.

Step 1: enlarge the brake line exit hole in the bottom skin to 5/8 as called out in fig 1.

Glad that was already done before the gear mount was in place.

Step 2: Install the fitting...

But the fitting doesn't fit. Surely Vans didn't mean to enlarge the hole in the gear mount to 5/8 also. I'm guessing it needs to be enlarged to 7/16 since it's a -4D fitting(?)

Am I missing something?
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Last edited by Freightdawg : 06-25-2017 at 05:02 PM.
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  #2  
Old 06-25-2017, 05:12 PM
Flandy10 Flandy10 is offline
 
Join Date: Dec 2007
Location: Peachtree City, GA
Posts: 85
Default

I went back and read the instructions and looked at my pictures.

Yes, you have to enlarge the hole in the gear mount so the bulkhead fitting will slide through the two concentric holes. If it helps, measure the diameter of the bulkhead fitting to verify the needed hole size.
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  #3  
Old 06-25-2017, 07:31 PM
rocketman1988 rocketman1988 is offline
 
Join Date: Jun 2010
Location: Sunman, IN
Posts: 720
Default Same

Yep I did the same and as you found out 5/8 is to big...
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  #4  
Old 07-05-2017, 02:48 PM
rapid_ascent rapid_ascent is offline
 
Join Date: Mar 2008
Location: Dublin, CA
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Default

It took me a little while to figure out what they intended, at least on the RV-7A. The idea is that the bulkhead fitting sits on the landing gear mount. The hole in the bottom skin is just a clearance hole. On the 7A there is a gap between the bottom skin and the gear mount that is what had me confused.

I did eventually see the larger hole callout on the drawing for the 5/8" hole. I drilled one hole this way, but I had a issue where the hole in the bottom skin wasn't perfectly aligned with the hole in the gear mount.

I think the better way is to work up to the larger hole in the skin. Start with a hole that the bulkhead fitting can pass through then use a little (3/8") sanding drum on a dremel tool working up to a larger (1/2") drum to get the clearance that you need. This approach worked well for me. I assume I'll be filling around the fitting with sealant of some kind later on.

Hope this helps.
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  #5  
Old 07-26-2017, 12:50 PM
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Freightdawg Freightdawg is offline
 
Join Date: Apr 2013
Location: New Albany, IN
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Default

Thanks all.

(It's been a little while since I've been on.)
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RV-10 empennage done for now. Wings done for now. Working on the (SB) fuse (Section 40: Flap System)
Finishing Kit is here!
N313KC reserved
In the garage for now, KJVY when it outgrows the garage
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