Today's Message Index:
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1. 05:05 AM - Re: Installing wing bolts on RV-7A (Dan Bergeron)
2. 03:54 PM - Re: Installing wing bolts on RV-7A (Herb Feldman)
Message 1
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| Subject: | Re: Installing wing bolts on RV-7A |
Hi Herb:
Good morning - glad you got that bolt seated and are on your way. Have a
great first flight and fly safe.
Maybe I missed it in all the discussion but I don't recall seeing any
mention of a procedure we used when my mentor and I installed the wings on
my RV-7A in July 09 - i.e., shrinking the bolts with liquid nitrogen. I
bought a container (they don't call it "can" but I can't recall the correct
word at the moment - it looks a little like an old fashioned milk can) from
a local industrial gas supply house and cold soaked the bolts for several
minutes before installing them - it shrinks them down enough to make a
difference - a couple thousands of an inch I suppose.
Dan Bergeron - Chicopee, MA
RV-7A - N307TB
263 hours since
first flight 08/04/09
On Sun, Oct 16, 2011 at 2:59 PM, Herb Feldman <hfaz@yahoo.com> wrote:
> I installed the remaining wing bolts, and it did loosen up the tight bolt
> enough to get it seated. Thanks Dan, and the rest of the group for the
> help.
> Herb
>
> *From:* Dan Reeves <n516dr@yahoo.com>
> *To:* "rv7-list@matronics.com" <rv7-list@matronics.com>
> *Sent:* Thursday, October 6, 2011 6:59 PM
> *Subject:* Re: RV7-List: Installing wing bolts on RV-7A
>
> Is that the first and only bolt you have semi-in for that wing so far?
> If so perhaps installing a couple of the other bolts will better align
> things such that original bolt will slide through. I used a couple of
> hardware store bolts with the threads ground off to align things and left
> those in while installing the other close tolerance bolts. By that point
it
> was fairly easy to pull out the make-shift pins and slide in the final cl
ose
> tolerance bolts. Maybe that first bolt is pinched a bit if it's the only
> one in so far and perhaps installing the other bolts will bring things in
to
> better alignment and allow it to slide the rest of the way through. Don'
t
> forget to start threading the nut as soon as you have one or two treads
> through for those lower bolts. Otherwise If you push them all the way
> through there won't be enough clearance to install the nuts. Good luck!
>
> Dan Reeves
>
> Sent from my iPad
>
> On Oct 6, 2011, at 6:12 PM, Herb Feldman <hfaz@yahoo.com> wrote:
>
> I am using standard bolts for alligning. Remove the wing, hmm, how can
> I get the that bolt out that's already through the spar and up to the gea
r
> plate?
> Thanks - Herb
>
> *From:* Francis Herr <fherr@cfl.rr.com>
> *To:* <rv7-list@matronics.com>rv7-list@matronics.com
> *Sent:* Thursday, October 6, 2011 12:55 PM
> *Subject:* Re: RV7-List: Installing wing bolts on RV-7A
>
> Did you happen to check whether the close tolerance bolts would fit the
> individual components before integrating them? I would probably remove th
e
> wing and try if not.
>
> Also, have you been using a standard bolt (maybe with a "bullet shaped
> end") to align all the holes. I used 4 such bolts of each of the two size
s
> on a wing.
>
> Francis
>
> On Oct 6, 2011, at 3:44 PM, Herb Feldman wrote:
>
> Yes the bolt head is 1/4" from the main spar. I tried tapping it in
> further with a rivet gun, but no luck. I am wondering while the threaded
> part of the bolt goes through the hole in the steel plate of the gear
> attachment, can the shank, which is a little greater in diameter than the
> threads, be to big to go through the hole? As I said, the bolt on the ot
her
> wing worked OK. I'll keep trying.
> Herb
>
> *From:* " <bcollinsrv7a@comcast.net>bcollinsrv7a@comcast.net" <<bcollins
rv7a@comcast.net>
> bcollinsrv7a@comcast.net>
> *To:* <rv7-list@matronics.com>rv7-list@matronics.com
> *Sent:* Wednesday, October 5, 2011 3:58 PM
> *Subject:* Re: RV7-List: Installing wing bolts on RV-7A
>
> Are you saying it's the bolt head that's 1/4" from the main spar? I
> believe I got a flat screwdriver or some other object -- maybe a bucking
> bar, I forget -- and tapped it with a rubber mallet or a rivet gun set on
> very low pressure.
>
> *Connected by DROID on Verizon Wireless*
>
>
> -----Original message-----
>
> *From: *Herb Feldman < <az944@lafn.org>az944@lafn.org>*
> To: * <rv7-list@matronics.com>rv7-list@matronics.com*
> Sent: *Wed, Oct 5, 2011 22:32:01 GMT+00:00*
> Subject: *RV7-List: Installing wing bolts on RV-7A
>
> I am having a problem trying to seat the lower left 7/16 wing attach bol
t
> on the left wing. I had no problem with the similar bolt on the right
> wing. This is the bolt that's behind the landing gear structure, the mos
t
> difficult to get a wrench on its nut.
> I oiled the bolt, and can wrench it to within about 1/4 inch from the mai
n
> spar, but can not wrench any more. I tried wiggling the wing and loosene
d
> the 1/4 bolt next to it, it's the only other bolt installed. But, no luc
k.
> it just won't turn. I hate to put a long pipe on the the 1/2 drive ratch
et
> the I am using for fear of distorting the bolt head.
> Any ideas would be appreciated.
> Herb
>
> *
>
> *
>
>
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M4=C3=93G=C3=9Aq=C3=BC=C2=A2=C3=C3=A2z=C2=B9=C3=9E=C3=81=C3=8A.=C2=AE'
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=9E=C2=B0=C3'=C2=AF=C5-=C2=AD=C2=A2=C2=BBhn=C2=BA0=C2=B1=C3=AD
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=B9=C3=88Z=C2=B0=C2=B8=C2=AC=C2=B5I=C3J=C3=C3=ACr=C2=B8=C2=A9=C2=B6*'
>
>
> *
>
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Message 2
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| Subject: | Re: Installing wing bolts on RV-7A |
Dan - I didn't hear about liquid nitrogen, however, someone suggested to so
ak them using dry ice from he local super market.=C2- Vans recommended to
put the easier, upper=C2-bolts in first to establish the wing hole posit
ions.=C2- Were I to do it again, I would start with upper bolts first.=0A
Herb=0A=0AFrom: Dan Bergeron <dan.pat.b@gmail.com>=0ATo: rv7-list@matronics
.com=0ASent: Monday, October 17, 2011 5:03 AM=0ASubject: Re: RV7-List: Inst
alling wing bolts on RV-7A=0A=0A=0A=C2-Hi Herb: =0AGood morning - glad yo
u got that bolt seated and are on your way. =C2-Have a great first flight
and fly safe.=0AMaybe I missed it in all the discussion but I don't recall
seeing any mention of a procedure =C2-we used when my mentor and I insta
lled the wings on my RV-7A in July 09 - i.e., shrinking the bolts with liqu
id nitrogen. =C2-I bought a container (they don't call it "can" but I can
't recall the correct word at the moment - it looks a little like an old fa
shioned milk can) from a local industrial gas supply house and cold soaked
the bolts for several minutes before installing them - it shrinks them down
enough to make a difference - a couple thousands of an inch I suppose. =C2
-=0ADan Bergeron - Chicopee, MA=0ARV-7A - =C2-N307TB=0A263 hours since
=0A=C2- =C2- =C2-first flight 08/04/09 =C2- =C2-=C2-=0A=0A=0AOn
Sun, Oct 16, 2011 at 2:59 PM, Herb Feldman <hfaz@yahoo.com> wrote:=0A=0AI
installed the remaining wing bolts, and it did loosen up the tight bolt eno
ugh to get it seated.=C2- Thanks Dan, and the rest of the group for the h
elp.=0A>Herb=0A>=0A>=0A>From: Dan Reeves <n516dr@yahoo.com>=0A>To: "rv7-lis
t@matronics.com" <rv7-list@matronics.com>=0A>Sent: Thursday, October 6, 201
1 6:59 PM=0A>Subject: Re: RV7-List: Installing wing bolts on RV-7A=0A>=0A>
=0A>Is that the first and only bolt you have semi-in for that wing so far?
=C2-If so perhaps installing a couple of the other bolts will better alig
n things such that original bolt will slide through. =C2-I used a couple
of hardware store bolts with the threads ground off to align things and lef
t those in while installing the other close tolerance bolts. =C2-By that
point it was fairly easy to pull out the make-shift pins and slide in the f
inal close tolerance bolts. =C2-Maybe that first bolt is pinched a bit if
it's the only one in so far and perhaps installing the other bolts will br
ing things into better alignment and allow it to slide the rest of the way
through. =C2-Don't forget to start threading the nut as soon as you have
one or two treads through for those lower bolts. =C2-Otherwise If you pus
h them all the way through there won't =C2-be enough clearance to install
the nuts. =C2-Good luck!=0A>=0A>=0A>Dan Reeves=0A>=0A>Sent from my iPad
=0A>=0A>On Oct 6, 2011, at 6:12 PM, Herb Feldman <hfaz@yahoo.com> wrote:=0A
>=0A>=0A>I am using standard bolts for alligning.=C2- Remove the wing, hm
m, how can I get the that bolt out that's already=C2-through the spar and
up to the gear plate?=0A>>Thanks=C2- - Herb=C2-=0A>>=0A>>=0A>>From: Fr
ancis Herr <fherr@cfl.rr.com>=0A>>To: rv7-list@matronics.com=0A>>Sent: Thur
sday, October 6, 2011 12:55 PM=0A>>Subject: Re: RV7-List: Installing wing b
olts on RV-7A=0A>>=0A>>=0A>>Did you happen to check whether the close toler
ance bolts would fit the individual components before integrating them?=C2
-I would probably remove the wing and try if not. =0A>>=0A>>=0A>>Also, ha
ve you been using a standard bolt (maybe with a "bullet shaped end") to ali
gn all the holes. I used 4 such bolts of each of the two sizes on a wing.
=0A>>=0A>>=0A>>Francis=0A>>=0A>>=0A>>On Oct 6, 2011, at 3:44 PM, Herb Feldm
an wrote:=0A>>=0A>>Yes the bolt head is 1/4" from the main spar. I tried ta
pping it in further with a rivet gun, but no luck.=C2- I am wondering=C2
-while the threaded part of the bolt goes through the hole in the steel p
late of the gear attachment, can the shank, which is a little greater in di
ameter than the threads, be to big to go through the hole?=C2- As I said,
the bolt on the other wing worked OK.=C2-=C2-=C2-I'll keep trying.
=0A>>Herb=0A>>=0A>>=0A>>From: "bcollinsrv7a@comcast.net" <bcollinsrv7a@comc
ast.net>=0A>>To: rv7-list@matronics.com=0A>>Sent: Wednesday, October 5, 201
1 3:58 PM=0A>>Subject: Re: RV7-List: Installing wing bolts on RV-7A=0A>>=0A
>>=0A>>Are you saying it's the bolt head that's 1/4" from the main spar? I
believe I got a flat screwdriver or some other object -- maybe a bucking ba
r, I forget -- and tapped it with a rubber mallet or a rivet gun set on ver
y low pressure.=0A>>=0A>>Connected by DROID on Verizon Wireless=0A>>=0A>>--
---Original message-----=0A>>=0A>>From: Herb Feldman <az944@lafn.org>=0A>>>
=0A>>>Subject: RV7-List: Installing wing bolts on RV-7A=0A>>>=0A>>>=0A>>>I
am having a problem trying to seat the lower left 7/16 wing attach bolt on
the left wing.=C2- I had no problem with the similar bolt on the right wi
ng.=C2- This is the bolt that's behind the landing gear structure, the mo
st difficult to get a wrench on its nut.=C2-=0A>>>I=C2-oiled the bolt,
and can wrench it to within about 1/4 inch from the main spar,=C2-but can
not wrench any more.=C2- I tried wiggling the wing and=C2-loosened the
1/4 bolt next to it, it's the only other bolt installed.=C2- But, no luc
k. it just won't turn.=C2- I hate to put a long pipe on the the 1/2 drive
ratchet the I am using for fear of distorting the bolt head.=C2- =0A>>>A
ny ideas would be appreciated.=0A>>>Herb=C2=C2=B7=BA~=B0=C3
=AD=C2=B2,=C3=9Eg(=93=C5-=C3=93M4=C3=93G=C3=9Aq=C3=BC=C2=A2=C3
=C3=A2z=C2=B9=C3=9E=C3=81=C3=8A.=C2=AE'=C2=AB8^E^=C3=8B=C5-=C3=8BD=84
=A2=C2=A8=C2=A5=C5-=C3=AE=EF=BD,z=C3=98^1=C2=ABk=C2=A2x=C5=93=C2=B0=C2
=B8=C2=AC=C2=B4W=C5=A1=C2=B6=C3=C3=9E=C2=B0=C3'=C2=AF=C5-=C2=AD=C2
=A2=C2=BBhn=C2=BA0=C2=B1=C3=AD=C3=A9=C5=A1=C5=B8"=C3=A2=C2=B2=C3
=9B=C2=AD=C5-X=C2=AD=B0=C3=AB,=C2=B9=C3=88Z=C2=B0=C2=B8=C2=AC=C2=B5
I=C3J=C3=C3=ACr=C2=B8=C2=A9=C2=B6*'=0A>>=0A>>=0A>>href="http://www.
matronics.com/Navigator?RV7-List">http://www.matronics.com/Navigator?RV7-Li
st href="http://forums.matronics.com/">http://forums.matronics.com href
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ution =0A>>=0A>>=0A>>=0A>>==========ef="http://www
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ist ========== ums.matronics.com">http://forums.matroni
cs.com ========== http://www.matronics.com/contribution
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