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jconnell(at)fmwildblue.co
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 Posted: Thu Apr 15, 2010 2:04 pm Post subject: Opening Cowl Hinge Sections - just a bit... |
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Guys,
It has been very difficult to pin the top and bottom cowl sections together. I have resorted to using a drill to "screw" music wire through the hinge sections. There were lots of good suggestions to try from other builders. One of them was opening the individual hinge sections just a bit for greater clearance for the pin.
Today I took a spare piece of .090 music wire and flattened it for about an inch in length and about an inch from a tapered end. To do this I positioned the the wire on the anvil portion of a vice and struck it with a heavy hammer. I then ran the wire through the upper and lower hinge sections separately. I used an electric drill to rotate the wire while doing this. Rotate the wire to open the hinge - the top and bottom are opposite each other. I flattened the wire a second time to open the sections a bit more. No metal is removed from the sections - they just open up a bit.
It really helped the process of joining the top and bottom sections. For what it's worth...
Joe Connell
RV-9A
[quote][b]
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n223rv(at)wolflakeairport
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| Posted: Thu Apr 15, 2010 2:49 pm Post subject: Opening Cowl Hinge Sections - just a bit... |
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Have you flown the plane? I have found that after you run the engine through a few hot cycles, they insert much easier.....
Sent from my iPhone
On Apr 15, 2010, at 6:01 PM, "Joe & Jan Connell" <jconnell(at)fmwildblue.com (jconnell(at)fmwildblue.com)> wrote:
[quote] Guys,
It has been very difficult to pin the top and bottom cowl sections together. I have resorted to using a drill to "screw" music wire through the hinge sections. There were lots of good suggestions to try from other builders. One of them was opening the individual hinge sections just a bit for greater clearance for the pin.
Today I took a spare piece of .090 music wire and flattened it for about an inch in length and about an inch from a tapered end. To do this I positioned the the wire on the anvil portion of a vice and struck it with a heavy hammer. I then ran the wire through the upper and lower hinge sections separately. I used an electric drill to rotate the wire while doing this. Rotate the wire to open the hinge - the top and bottom are opposite each other. I flattened the wire a second time to open the sections a bit more. No metal is removed from the sections - they just open up a bit.
It really helped the process of joining the top and bottom sections. For what it's worth...
Joe Connell
RV-9A
[b]
| | - The Matronics RV-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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jim jewell
Joined: 09 Jan 2006
Posts: 82
Location: Kelowna B.C. Canada
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| Posted: Thu Apr 15, 2010 3:46 pm Post subject: Opening Cowl Hinge Sections - just a bit... |
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Builders,
While fitting cowl halves I also found it difficult to insert the hinge wires. This worked for me:
I stood the cowl halves up on the nose on some foam to minimizes damage and inserted the hinge wires from the firewall end until they resisted due to misaligned hinge segments.
At each tight hinge segment I used a small ball peen hammer and a one eight inch drift punch to gently realign the individual segments this way and that until the hinge wire install freed up.
The whole effort took about an hour and the end result allows the insertion of the hinge wires barehanded.
To lube the wires I used A bar of ivory hand soap for the early installs. Doing so eliminated the need for oils and silicone lubes that might be a hassle during the later painting stages etc. I now re-lube with the soap about twice a year or when the wires start to feel a bit draggy.
Good flight Greased landings,
Jim in Kelowna (no license RV6-A for sale if you know any buyers)
From: owner-rv-list-server(at)matronics.com [mailto:owner-rv-list-server(at)matronics.com] On Behalf Of Joe & Jan Connell
Sent: Thursday, April 15, 2010 3:02 PM
To: RV-List
Subject: Opening Cowl Hinge Sections - just a bit...
Guys,
It has been very difficult to pin the top and bottom cowl sections together. I have resorted to using a drill to "screw" music wire through the hinge sections. There were lots of good suggestions to try from other builders. One of them was opening the individual hinge sections just a bit for greater clearance for the pin.
Today I took a spare piece of .090 music wire and flattened it for about an inch in length and about an inch from a tapered end. To do this I positioned the the wire on the anvil portion of a vice and struck it with a heavy hammer. I then ran the wire through the upper and lower hinge sections separately. I used an electric drill to rotate the wire while doing this. Rotate the wire to open the hinge - the top and bottom are opposite each other. I flattened the wire a second time to open the sections a bit more. No metal is removed from the sections - they just open up a bit.
It really helped the process of joining the top and bottom sections. For what it's worth...
Joe Connell
RV-9A
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