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06-08-2008, 07:00 PM
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Join Date: Jul 2005
Location: Bolingbrook, Illiniois
Posts: 254
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Need some information on cable size
Well I finally started on the firewall penetrations for my painfully slow build -6A. I have a little chicken and egg problem going on here. I need to order a custom throttle and mixture cable but to get a good measurement I need to have the eyeball holes opened up. So... to the question, does anyone know what size the eyeballs need to be drilled? I guess another way of asking is what is the diameter of the throttle and mixture cables? I've looked all over but can't find the info.
Thanks for the help
Paul
pczar3
N694BP reserved
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06-08-2008, 08:06 PM
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Join Date: Dec 2007
Location: Flagstaff, AZ
Posts: 2,647
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Well, if you're using the eyeballs from Avery or ACS, they're about 1.25". So, drill about 1/2" to get a rough idea and then finalize it when you finish. If you're using some other hardware, order the hardware and it should have the opening dimensions in the installation instructions. The cables themselves are only about 5/16" (less, I believe), so you could make minimal holes in the firewall to do your locating and length measurement.
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06-09-2008, 12:06 PM
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Join Date: Jul 2005
Location: Bolingbrook, Illiniois
Posts: 254
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Thanks
It is the 5/16 or less number I was interested in getting. I will probably open them up to 1/4 and then go from there.
Thanks, Paul
pczar3
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06-09-2008, 12:21 PM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,408
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You probably want to drill out the eyeballs a couple of thousants less than the cable diameter, just enough "crush" to hold the cable in place, but not so much as to cause binding.
__________________
Mike Starkey
VAF 909
Rv-10, N210LM.
Flying as of 12/4/2010 
Phase 1 done, 2/4/2011
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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06-09-2008, 02:41 PM
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Join Date: Dec 2007
Location: Flagstaff, AZ
Posts: 2,647
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Oh, I see. You were asking about the hole in the eyeballs themselves. I drilled mine .25 as the Van-supplied cable was .263 - .267 (I went back and measured again to be sure I told you right). I think the ACS cables are larger but their dimensions are listed in the catalog. Sorry for misunderstanding the question.
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06-09-2008, 03:43 PM
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Join Date: Sep 2005
Location: Dothan, Alabama
Posts: 1,487
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BTW, Van's custom cables are much less expensive than Spruce.
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Alton DeWeese
N526RV RV7A Tip Up, IO360 180 W/Hartzel BA prop.
Flying ~950 hours since Aug 2010
N4IDH
Construction Log
?The secret of getting ahead is getting started. The secret of getting started is breaking your complex overwhelming tasks into small manageable tasks, and then starting on the first one.?
?Mark Twain
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06-09-2008, 07:55 PM
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Join Date: Jul 2005
Location: Bolingbrook, Illiniois
Posts: 254
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Thanks for all the answers!
I can't think of a better community of folks. Just ask and you get the answer. I appreciate the help. Now, back to building.
Paul
pczar3
N694BP reserved
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