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bobbyhester(at)charter.ne
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Hopperdhh(at)aol.com
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 Posted: Sat Sep 23, 2006 3:52 pm Post subject: RV7A Wing attaching tips? |
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Bobby,
Bend the joggle in the fuel lines and put them in at the same time. Its almost impossible to get an acceptable job with the gear brackets in place.
Don't put the bolts in the freezer if humidity will cause water droplets on them. I didn't use the freezer at all, so this is new to me with respect to the wing. Let us know if it works.
Get the plans out and put washers only where it calls for them. As I recall all the wing bolts all go in from the rear, but the washers are on the back at the bottom.
Put the big bolts (7/16 inch) in first. If you have your temporary bolts in now leave one in until you put your other close tolerance bolt in. I'm afraid you'll overstress the small bolt if you put one of them in first.
Grease all of them along the unthreaded length so that you can torque the bottom ones from the rear side. There is no way to do it from the front. There is just enough room to get an open end wrench on to hold the nut on the bottom bolts. I would only torque to the standard values even though there is some friction, it shouldn't be that much.
Don't be afraid to tap them with a hammer using a piece of hardwood to protect the bolt head. Or use a plastic hammer.
Have someone hold the wing tip up a little to unload the bolts from the torque of the wing weight. You can feel when the bolt frees up as you tap it in.
Don't forget the "extra" two bolts in each wing that only go into the nutplates.
All of the above IMHO. Hope maybe this helps.
Dan Hopper
RV-7A
In a message dated 9/23/2006 7:24:26 P.M. Eastern Daylight Time, bobbyhester(at)charter.net writes:
| Quote: | --> RV-List message posted by: Bobby Hester <bobbyhester(at)charter.net>
I am ready to attach the wings for the last time. I have one in place
with the temp bolts holding it in place. I want to put the close
tolerance bolts in tommarow.
Can someone give me the tips that I need to know? It looks like I will
have to start with the bottom outboard 1/4 bolt I know that I will have
to start the nut as soon as I can before tapping the bolt all the way
in. I have the bolts in the freezer. I read that I should not torque the
bolts untill they are at room temp.. Am I going to be able to get on the
nuts to torque them once all the nuts are on?
--
My new email address: bobbyhester(at)charter.net
Surfing the Web from Hopkinsville, KY
Visit my web site at: http://www.geocities.com/hester-hoptown/RVSite/
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