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az944(at)lafn.org
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 Posted: Wed Oct 05, 2011 2:35 pm Post subject: Installing wing bolts on RV-7A |
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I am having a problem trying to seat the lower left 7/16 wing attach bolt 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 most difficult to get a wrench on its nut.
I oiled the bolt, and can wrench it to within about 1/4 inch from the main spar, but can not wrench any more. I tried wiggling the wing and loosened the 1/4 bolt next to it, it's the only other bolt installed. But, no luck. it just won't turn. 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.
Any ideas would be appreciated.
Herb
[quote][b]
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Bob Collins
Joined: 11 Mar 2006
Posts: 470
Location: St. Paul, Minnesota
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| Posted: Wed Oct 05, 2011 3:00 pm Post subject: Installing wing bolts on RV-7A |
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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(at)lafn.org>
To: rv7-list(at)matronics.com
Sent: Wed, Oct 5, 2011 22:32:01 GMT+00:00
Subject: Installing wing bolts on RV-7A
I am having a problem trying to seat the lower left 7/16 wing attach bolt 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 most
difficult to get a wrench on its nut.
I oiled the bolt, and can wrench it to within about 1/4 inch from the main
spar, but can not wrench any more. I tried wiggling the wing and loosened
the 1/4 bolt next to it, it's the only other bolt installed. But, no luck.
it just won't turn. 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.
Any ideas would be appreciated.
Herb
| | - The Matronics RV7-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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_________________
Bob Collins
St. Paul, Minn.
Letters from Flyover Country
http://rvnewsletter.blogspot.com/ |
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hfaz(at)yahoo.com
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| Posted: Thu Oct 06, 2011 11:47 am Post subject: Installing wing bolts on RV-7A |
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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 other wing worked OK. I'll keep trying.
Herb
From: "bcollinsrv7a(at)comcast.net" <bcollinsrv7a(at)comcast.net>
To: rv7-list(at)matronics.com
Sent: Wednesday, October 5, 2011 3:58 PM
Subject: Re: Installing wing bolts on RV-7A
#yiv1443697620 body {word-wrap:break-word;background-color:#ffffff;} 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-----
| Quote: | From: Herb Feldman <az944(at)lafn.org>
To: rv7-list(at)matronics.com
Sent: Wed, Oct 5, 2011 22:32:01 GMT+00:00
Subject: Installing wing bolts on RV-7A
I am having a problem trying to seat the lower left 7/16 wing attach bolt 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 most difficult to get a wrench on its nut.
I oiled the bolt, and can wrench it to within about 1/4 inch from the main spar, but can not wrench any more. I tried wiggling the wing and loosened the 1/4 bolt next to it, it's the only other bolt installed. But, no luck. it just won't turn. 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.
Any ideas would be appreciated.
Herb
|
¦·›~‰í²,Þg(–ŠÓM4ÓGÚqü¢êâz¹ÞÁÊ.®'«8^E^ËŠËD™¨¥Šî�,zØ^1«k¢xœ°¸¬´Wš¶êÞ°Ö¯Š¢»hnº0±í…隟"â²ÛŠX‰ë,¹ÈZ°¸¬µIÿJæìr¸©¶*'
[quote][b]
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fherr(at)cfl.rr.com
Guest
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| Posted: Thu Oct 06, 2011 11:57 am Post subject: Installing wing bolts on RV-7A |
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Did you happen to check whether the close tolerance bolts would fit the individual components before integrating them? I would probably remove the 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 sizes 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 other wing worked OK. I'll keep trying.
Herb
From: "bcollinsrv7a(at)comcast.net (bcollinsrv7a(at)comcast.net)" <bcollinsrv7a(at)comcast.net (bcollinsrv7a(at)comcast.net)>
To: rv7-list(at)matronics.com (rv7-list(at)matronics.com)
Sent: Wednesday, October 5, 2011 3:58 PM
Subject: Re: Installing wing bolts on RV-7A
#yiv1443697620 body {word-wrap:break-word;background-color:#ffffff;} 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-----
| Quote: | From: Herb Feldman <az944(at)lafn.org (az944(at)lafn.org)>
To: rv7-list(at)matronics.com (rv7-list(at)matronics.com)
Sent: Wed, Oct 5, 2011 22:32:01 GMT+00:00
Subject: Installing wing bolts on RV-7A
I am having a problem trying to seat the lower left 7/16 wing attach bolt 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 most difficult to get a wrench on its nut.
I oiled the bolt, and can wrench it to within about 1/4 inch from the main spar, but can not wrench any more. I tried wiggling the wing and loosened the 1/4 bolt next to it, it's the only other bolt installed. But, no luck. it just won't turn. 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.
Any ideas would be appreciated.
Herb
|
¦·›~‰í²,Þg(–ŠÓM4ÓGÚqü¢êâz¹ÞÁÊ.®'«8^E^ËŠËD™¨¥Šî�,zØ^1«k¢xœ°¸¬´Wš¶êÞ°Ö¯Š¢»hnº0±í…隟"â²ÛŠX‰ë,¹ÈZ°¸¬µIÿJæìr¸©¶*'
[quote]
href="http://www.matronics.com/Navigator?RV7-List">http://www.matronics.com/Navigator?RV7-List
href="http://forums.matronics.com/">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/contribution
[b]
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stephen.h.watson(at)jpl.n
Guest
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| Posted: Thu Oct 06, 2011 12:13 pm Post subject: Installing wing bolts on RV-7A |
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For even non-close-tolerance bolts on my -7A during assembly (a process still going on ☺ ), the steel gear weldments’ holes were too small for the bolts. I had to remove the weldments and slightly ream the holes (and then checked them with the close-tolerance bolts) and reinstall them. I suspect you have the same issue here.
Note that I said ream the *weldment* holes, NOT the spar (before I get a bunch of emails saying “Van’s says don’t ream the spar!”).
From: owner-rv7-list-server(at)matronics.com [mailto:owner-rv7-list-server(at)matronics.com] On Behalf Of Francis Herr
Sent: Thursday, October 06, 2011 12:55 PM
To: rv7-list(at)matronics.com
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 the 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 sizes 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 other wing worked OK. I'll keep trying.
Herb
From: "bcollinsrv7a(at)comcast.net<mailto:bcollinsrv7a(at)comcast.net>" <bcollinsrv7a(at)comcast.net<mailto:bcollinsrv7a(at)comcast.net>>
To: rv7-list(at)matronics.com<mailto:rv7-list(at)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(at)lafn.org<mailto:az944(at)lafn.org>>
To: rv7-list(at)matronics.com<mailto:rv7-list(at)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 bolt 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 most difficult to get a wrench on its nut.
I oiled the bolt, and can wrench it to within about 1/4 inch from the main spar, but can not wrench any more. I tried wiggling the wing and loosened the 1/4 bolt next to it, it's the only other bolt installed. But, no luck. it just won't turn. 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.
Any ideas would be appreciated.
Herb
¦·›~‰í²,Þg(–ŠÓM4ÓGÚqü¢êâz¹ÞÁÊ.®'«8^E^ËŠËD™¨¥Šî�,zØ^1«k¢xœ°¸¬´Wš¶êÞ°Ö¯Š¢»hnº0±í…隟"â²ÛŠX‰ë,¹ÈZ°¸¬µIÿJæìr¸©¶*'
href="http://www.matronics.com/Navigator?RV7-List">http://www.matronics.com/Navigator?RV7-List
href="http://forums.matronics.com/">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/contribution
| | - The Matronics RV7-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV7-List |
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hfaz(at)yahoo.com
Guest
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| Posted: Thu Oct 06, 2011 2:15 pm Post subject: Installing wing bolts on RV-7A |
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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 gear plate?
Thanks - Herb
From: Francis Herr <fherr(at)cfl.rr.com>
To: rv7-list(at)matronics.com
Sent: Thursday, October 6, 2011 12:55 PM
Subject: Re: 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 the 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 sizes 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 other wing worked OK. I'll keep trying.
Herb
From: "bcollinsrv7a(at)comcast.net (bcollinsrv7a(at)comcast.net)" <bcollinsrv7a(at)comcast.net (bcollinsrv7a(at)comcast.net)>
To: rv7-list(at)matronics.com (rv7-list(at)matronics.com)
Sent: Wednesday, October 5, 2011 3:58 PM
Subject: Re: Installing wing bolts on RV-7A
#yiv307164159 body {word-wrap:break-word;background-color:#ffffff;} 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-----
| Quote: | From: Herb Feldman <az944(at)lafn.org (az944(at)lafn.org)>
To: rv7-list(at)matronics.com (rv7-list(at)matronics.com)
Sent: Wed, Oct 5, 2011 22:32:01 GMT+00:00
Subject: Installing wing bolts on RV-7A
I am having a problem trying to seat the lower left 7/16 wing attach bolt 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 most difficult to get a wrench on its nut.
I oiled the bolt, and can wrench it to within about 1/4 inch from the main spar, but can not wrench any more. I tried wiggling the wing and loosened the 1/4 bolt next to it, it's the only other bolt installed. But, no luck. it just won't turn. 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.
Any ideas would be appreciated.
Herb
|
¦·›~‰í²,Þg(–ŠÓM4ÓGÚqü¢êâz¹ÞÁÊ.®'«8^E^ËŠËD™¨¥Šî�,zØ^1«k¢xœ°¸¬´Wš¶êÞ°Ö¯Š¢»hnº0±í…隟"â²ÛŠX‰ë,¹ÈZ°¸¬µIÿJæìr¸©¶*'
| Quote: |
href="http://www.matronics.com/Navigator?RV7-List">http://www.matronics.com/Navigator?RV7-List
href="http://forums.matronics.com/">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/contribution
|
[quote][b]
| | - The Matronics RV7-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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Dan Reeves
Joined: 10 Jan 2006
Posts: 16
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| Posted: Thu Oct 06, 2011 6:03 pm Post subject: Installing wing bolts on RV-7A |
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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 close 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 into 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(at)yahoo.com (hfaz(at)yahoo.com)> wrote:
[quote]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 gear plate?
Thanks - Herb
From: Francis Herr <fherr(at)cfl.rr.com (fherr(at)cfl.rr.com)>
To: [url=mailto:rv7-list(at)matronics.com]rv7-list(at)matronics.com (rv7-list(at)matronics.com)[/url]
Sent: Thursday, October 6, 2011 12:55 PM
Subject: Re: 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 the 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 sizes 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 other wing worked OK. I'll keep trying.
Herb
From: "[url=mailto:bcollinsrv7a(at)comcast.net]bcollinsrv7a(at)comcast.net (bcollinsrv7a(at)comcast.net)[/url]" <[url=mailto:bcollinsrv7a(at)comcast.net]bcollinsrv7a(at)comcast.net (bcollinsrv7a(at)comcast.net)[/url]>
To: [url=mailto:rv7-list(at)matronics.com]rv7-list(at)matronics.com (rv7-list(at)matronics.com)[/url]
Sent: Wednesday, October 5, 2011 3:58 PM
Subject: Re: Installing wing bolts on RV-7A
#yiv307164159 body {word-wrap:break-word;background-color:#ffffff;} 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-----
| Quote: | From: Herb Feldman <[url=mailto:az944(at)lafn.org]az944(at)lafn.org (az944(at)lafn.org)[/url]>
To: [url=mailto:rv7-list(at)matronics.com]rv7-list(at)matronics.com (rv7-list(at)matronics.com)[/url]
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 bolt 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 most difficult to get a wrench on its nut.
I oiled the bolt, and can wrench it to within about 1/4 inch from the main spar, but can not wrench any more. I tried wiggling the wing and loosened the 1/4 bolt next to it, it's the only other bolt installed. But, no luck. it just won't turn. 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.
Any ideas would be appreciated.
Herb
|
¦·›~‰í²,Þg(–ŠÓM4ÓGÚqü¢êâz¹ÞÁÊ.®'«8^E^ËŠËD™¨¥Šî�,zØ^1«k¢xœ°¸¬´Wš¶êÞ°Ö¯Š¢»hnº0±í…隟"â²ÛŠX‰ë,¹ÈZ°¸¬µIÿJæìr¸©¶*'
[b]
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fherr(at)cfl.rr.com
Guest
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| Posted: Fri Oct 07, 2011 3:50 am Post subject: Installing wing bolts on RV-7A |
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Not likely but: make sure your main gear leg mounts are part number WD-721 (RV7A) and not part number WD-921 (RV9A). The parts have been mixed up at Van's in the past, especially early on in shipments.
The RV7A gear mounts have three large holes and one much smaller hole in the top, while the RV9A mounts have just 3 large holes in the top. They are very close in specifications and look interchangeable; but, are not.
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 other wing worked OK. I'll keep trying.
Herb
From: "bcollinsrv7a(at)comcast.net (bcollinsrv7a(at)comcast.net)" <bcollinsrv7a(at)comcast.net (bcollinsrv7a(at)comcast.net)>
To: rv7-list(at)matronics.com (rv7-list(at)matronics.com)
Sent: Wednesday, October 5, 2011 3:58 PM
Subject: Re: Installing wing bolts on RV-7A
#yiv1443697620 body {word-wrap:break-word;background-color:#ffffff;} 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-----
| Quote: | From: Herb Feldman <az944(at)lafn.org (az944(at)lafn.org)>
To: rv7-list(at)matronics.com (rv7-list(at)matronics.com)
Sent: Wed, Oct 5, 2011 22:32:01 GMT+00:00
Subject: Installing wing bolts on RV-7A
I am having a problem trying to seat the lower left 7/16 wing attach bolt 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 most difficult to get a wrench on its nut.
I oiled the bolt, and can wrench it to within about 1/4 inch from the main spar, but can not wrench any more. I tried wiggling the wing and loosened the 1/4 bolt next to it, it's the only other bolt installed. But, no luck. it just won't turn. 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.
Any ideas would be appreciated.
Herb
|
¦·›~‰í²,Þg(–ŠÓM4ÓGÚqü¢êâz¹ÞÁÊ.®'«8^E^ËŠËD™¨¥Šî�,zØ^1«k¢xœ°¸¬´Wš¶êÞ°Ö¯Š¢»hnº0±í…隟"â²ÛŠX‰ë,¹ÈZ°¸¬µIÿJæìr¸©¶*'
[quote]
href="http://www.matronics.com/Navigator?RV7-List">http://www.matronics.com/Navigator?RV7-List
href="http://forums.matronics.com/">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/contribution
[b]
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hfaz(at)yahoo.com
Guest
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| Posted: Sun Oct 16, 2011 11:02 am Post subject: Installing wing bolts on RV-7A |
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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(at)yahoo.com>
To: "rv7-list(at)matronics.com" <rv7-list(at)matronics.com>
Sent: Thursday, October 6, 2011 6:59 PM
Subject: Re: 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 close 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 into 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(at)yahoo.com (hfaz(at)yahoo.com)> wrote:
[quote] 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 gear plate?
Thanks - Herb
From: Francis Herr <fherr(at)cfl.rr.com (fherr(at)cfl.rr.com)>
To: [url=mailto:rv7-list(at)matronics.com]rv7-list(at)matronics.com (rv7-list(at)matronics.com)[/url]
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 the 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 sizes 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 other wing worked OK. I'll keep trying.
Herb
From: "[url=mailto:bcollinsrv7a(at)comcast.net]bcollinsrv7a(at)comcast.net (bcollinsrv7a(at)comcast.net)[/url]" <[url=mailto:bcollinsrv7a(at)comcast.net]bcollinsrv7a(at)comcast.net (bcollinsrv7a(at)comcast.net)[/url]>
To: [url=mailto:rv7-list(at)matronics.com]rv7-list(at)matronics.com (rv7-list(at)matronics.com)[/url]
Sent: Wednesday, October 5, 2011 3:58 PM
Subject: Re: Installing wing bolts on RV-7A
#yiv139999608 body {word-wrap:break-word;background-color:#ffffff;} 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-----
| Quote: | From: Herb Feldman <[url=mailto:az944(at)lafn.org]az944(at)lafn.org (az944(at)lafn.org)[/url]>
To: [url=mailto:rv7-list(at)matronics.com]rv7-list(at)matronics.com (rv7-list(at)matronics.com)[/url]
Sent: Wed, Oct 5, 2011 22:32:01 GMT+00:00
Subject: Installing wing bolts on RV-7A
I am having a problem trying to seat the lower left 7/16 wing attach bolt 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 most difficult to get a wrench on its nut.
I oiled the bolt, and can wrench it to within about 1/4 inch from the main spar, but can not wrench any more. I tried wiggling the wing and loosened the 1/4 bolt next to it, it's the only other bolt installed. But, no luck. it just won't turn. 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.
Any ideas would be appreciated.
Herb
|
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hfaz(at)yahoo.com
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| Posted: Mon Oct 17, 2011 2:54 pm Post subject: Installing wing bolts on RV-7A |
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Dan - I didn't hear about liquid nitrogen, however, someone suggested to soak them using dry ice from he local super market. Vans recommended to put the easier, upper bolts in first to establish the wing hole positions. Were I to do it again, I would start with upper bolts first.
Herb
From: Dan Bergeron <dan.pat.b(at)gmail.com>
To: rv7-list(at)matronics.com
Sent: Monday, October 17, 2011 5:03 AM
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(at)yahoo.com (hfaz(at)yahoo.com)> wrote:
[quote] 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(at)yahoo.com (n516dr(at)yahoo.com)>
To: "rv7-list(at)matronics.com (rv7-list(at)matronics.com)" <rv7-list(at)matronics.com (rv7-list(at)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 close 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 into 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(at)yahoo.com (hfaz(at)yahoo.com)> wrote:
| Quote: | 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 gear plate?
Thanks - Herb
From: Francis Herr <fherr(at)cfl.rr.com (fherr(at)cfl.rr.com)>
To: (rv7-list(at)matronics.com)rv7-list(at)matronics.com (rv7-list(at)matronics.com)
Sent: Thursday, October 6, 2011 12:55 PM
Subject: Re: 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 the 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 sizes 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 other wing worked OK. I'll keep trying.
Herb
From: " (bcollinsrv7a(at)comcast.net)bcollinsrv7a(at)comcast.net (bcollinsrv7a(at)comcast.net)" < (bcollinsrv7a(at)comcast.net)bcollinsrv7a(at)comcast.net (bcollinsrv7a(at)comcast.net)>
To: (rv7-list(at)matronics.com)rv7-list(at)matronics.com (rv7-list(at)matronics.com)
Sent: Wednesday, October 5, 2011 3:58 PM
Subject: Re: 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-----
| Quote: | From: Herb Feldman < (az944(at)lafn.org)az944(at)lafn.org (az944(at)lafn.org)>
To: (rv7-list(at)matronics.com)rv7-list(at)matronics.com (rv7-list(at)matronics.com)
Sent: Wed, Oct 5, 2011 22:32:01 GMT+00:00
Subject: Installing wing bolts on RV-7A
I am having a problem trying to seat the lower left 7/16 wing attach bolt 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 most difficult to get a wrench on its nut.
I oiled the bolt, and can wrench it to within about 1/4 inch from the main spar, but can not wrench any more. I tried wiggling the wing and loosened the 1/4 bolt next to it, it's the only other bolt installed. But, no luck. it just won't turn. 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.
Any ideas would be appreciated.
Herb
|
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