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03-25-2009, 10:32 PM
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Join Date: Aug 2005
Location: Pasadena CA
Posts: 2,484
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Through bolts come out first...
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Stephen Samuelian, CFII, A&P IA, CTO
RV4 wing in Jig @ KPOC
RV7 emp built
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03-26-2009, 02:40 PM
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Join Date: Dec 2006
Location: san angelo texas
Posts: 70
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My through bolts are not moving. tell me how to get them out.
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03-26-2009, 02:45 PM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,420
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Quote:
Originally Posted by jscottpilot
My through bolts are not moving. tell me how to get them out.
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You probably done want to hear this, but how about a hammer??
O.K., will it feel better to call it a mallet?
__________________
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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03-26-2009, 03:07 PM
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Join Date: Mar 2005
Location: SE Florida
Posts: 1,499
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Protect those studs before applying a hammer
Quote:
Originally Posted by jscottpilot
My through bolts are not moving. tell me how to get them out.
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Before any hammering is done on them, make a tool to protect those studs. Take a piece of 1.5" or 2" diameter round aluminum stock. Cut it about 3 inches long. Now drill (about 1" deep) and tap (a bottom tap works best) into one end so that you can screw this protective "cap" over the stud to be hammered on. This way you won't damage the ends of the studs.
Charlie Kuss
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03-26-2009, 05:12 PM
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Join Date: Mar 2007
Location: Corvallis Oregon.
Posts: 680
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The assembler has to use a hammer to install the studs. You will need to use a hammer to remove them. Do not hammer directly on the threaded end of the stud unless you plan on replacing them. Also be sure you pick the thru bolts to hammer on and not the case mounted bolts.
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03-26-2009, 05:54 PM
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Join Date: Jun 2006
Location: 8I3
Posts: 3,564
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Quote:
Originally Posted by chaskuss
Before any hammering is done on them, make a tool to protect those studs. Take a piece of 1.5" or 2" diameter round aluminum stock. Cut it about 3 inches long. Now drill (about 1" deep) and tap (a bottom tap works best) into one end so that you can screw this protective "cap" over the stud to be hammered on. This way you won't damage the ends of the studs.
Charlie Kuss
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I have a tool I made exactly as Charlie describes, except I made mine from steel. You drive the thru bolts down with a hammer, and finish driving them thru with a brass drift.
There is a .000 to .003 interference fit for the studs, and really the only way to check the fit is by how easy they drive thru the case halves. The middle of the stud is tapered, so you only have to drive them about 1-1/2" or so before they will fall out. If you find any loose ECI makes oversize studs. Sometimes swapping the studs between locations will take care of any loose fits.
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Please don't PM me! Email only!
Bob Japundza CFI A&PIA
N9187P PA-24-260B Comanche, flying
N678X F1 Rocket, under const.
N244BJ RV-6 "victim of SNF tornado" 1200+ hrs, rebuilding
N8155F C150 flying
N7925P PA-24-250 Comanche, restoring
Not a thing I own is stock.
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03-30-2009, 10:46 AM
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Join Date: Dec 2006
Location: san angelo texas
Posts: 70
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it is separated
I just separated the case. I removed the 4 through bolts by putting large washers on the studs and then drawing them out with the nut that goes on the stud. They were tight but came out fairly easily. As soon as I pulled the four studs out I tapped the case with a rubber mallet and it essentially separted with one light tap. The seal on the nose of the engine held the nose of the engine together. It required some coaxing. I just used something soft to pull down on the seal once I had room. If you have to do this remember the rear through bolts are not really through bolts. They are anchored or screwed into one side of the engine. No need to remove them. Thanks for all the help.
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03-30-2009, 10:50 AM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,420
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Glad your story ended in success.
__________________
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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03-31-2009, 09:59 PM
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Join Date: Aug 2008
Location: MONTGOMERY, TX.
Posts: 89
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DON'T FORGET THE BOLT ABOVE THE CAM GEAR. IT IS HARD TO SEE.
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12-04-2015, 08:40 AM
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Join Date: Feb 2006
Location: Eliot, Maine
Posts: 83
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Found this online for how to split a case that would be helpful for the next person that needs to split one. Myself included......
http://www.ryanmachine.net/Docs/Let's-Split.pdf
__________________
Claudio Scremin
N221Z RV8A Maine 600+ hrs
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