Results 1 to 14 of 14

Thread: removing shock cords from PA-12

  1. #1

    Join Date
    Aug 2017
    Posts
    4
    Post Thanks / Like

    removing shock cords from PA-12

    Yeah, I know, cut em. I am working on a PA-12 and have to remove the gear. Customer just installed new shock cords. Anybody know a way to get these off intact? Thanks for any thoughts, Larry

  2. #2
    Colorguns's Avatar
    Join Date
    Dec 2013
    Location
    Bloomfield NY
    Posts
    244
    Post Thanks / Like
    Turbobeaver might have an idea?

    Doug

  3. #3
    PerryB's Avatar
    Join Date
    Aug 2007
    Location
    Northern Calif.
    Posts
    1,440
    Post Thanks / Like
    However you go about it, you should tell the owner there is a new AD requiring all PA12's to be converted to 18 gear and they're grounded pending compliance.
    After Monday and Tuesday, even the calendar says WTF !
    Likes mike mcs repair, irishfield liked this post

  4. #4
    algonquin's Avatar
    Join Date
    Apr 2013
    Location
    Seldovia,Ak
    Posts
    641
    Post Thanks / Like
    I did one a few years ago so this is a bit foggy. I slipped a strap from a ratchet tie down in and worked it under. Tied a knot put a pry bar through and used the arch to pry against . When I got it over I think I needed a screw driver to move it clear and let it down gentle. You'll have to work it a bit but it worked good luck.

  5. #5
    www.SkupTech.com mike mcs repair's Avatar
    Join Date
    Aug 2004
    Location
    chugiak AK
    Posts
    8,920
    Post Thanks / Like
    1. cost of new cord = 1X

    2. Labor to attempt to remove existing new ones = 3X

    3 if Step 2 don't go well, medical bills and loose of work time and/or life = 1243255X

    use knife...

  6. #6

    Join Date
    Aug 2017
    Posts
    4
    Post Thanks / Like
    Quote Originally Posted by mike mcs repair View Post
    1. cost of new cord = 1X

    2. Labor to attempt to remove existing new ones = 3X

    3 if Step 2 don't go well, medical bills and loose of work time and/or life = 1243255X

    use knife...
    Read Algonquin and thought about it. Sounds doable. Read Mike and decided his idea was prolly safer. Guess I cut em. Thanks to both, Larry
    Likes rickvt, Steve Pierce liked this post

  7. #7
    Charlie Longley's Avatar
    Join Date
    Jan 2008
    Location
    Arlington, WA
    Posts
    421
    Post Thanks / Like
    Quote Originally Posted by Larry Huntley View Post
    Read Algonquin and thought about it. Sounds doable. Read Mike and decided his idea was prolly safer. Guess I cut em. Thanks to both, Larry
    Having done quite a few PA-12 shock cords. I prefer Mike's idea.

  8. #8
    R. JOHNSON's Avatar
    Join Date
    Sep 2003
    Location
    DODGEVILLE WI
    Posts
    372
    Post Thanks / Like
    I've installed them on a J-5 with an engine hoist and rope, don't think it'd be too difficult to go back off with them the same way.
    Ryan

  9. #9
    Charlie Longley's Avatar
    Join Date
    Jan 2008
    Location
    Arlington, WA
    Posts
    421
    Post Thanks / Like
    Quote Originally Posted by R. JOHNSON View Post
    I've installed them on a J-5 with an engine hoist and rope, don't think it'd be too difficult to go back off with them the same way.
    Unlike a stock J-5 a stock PA-12 doesn’t have hydrosorbs. The shock cords are buried in the belly. It would be interesting getting an engine hoist in there. I use a modified handyman jack to install them.
    Last edited by Charlie Longley; 05-18-2018 at 08:23 AM.

  10. #10

    Join Date
    Sep 2003
    Posts
    5,927
    Post Thanks / Like
    There is a special tool, and even that doesn't work real well. I doubt I would even attempt a -12 without the tool.

    If cost is an issue, there are suppliers who sell out-of-date shocks for cheap. As far as I can tell, they are almost as good as fresh ones .

    - I have a 1955 Chevy bumper jack modified so J-3 struts can be undone without cutting and sort of safely redone in about 20 minutes per side max.

  11. #11
    Steve Pierce's Avatar
    Join Date
    Mar 2002
    Location
    Graham, TX
    Posts
    17,143
    Post Thanks / Like
    Quote Originally Posted by Charlie Longley View Post
    Unlike a stock J-5 a stock PA-12 doesn’t have hydrosorbs. The shock cords are buried in the belly. It would be interesting getting an engine hoist in there. I use a modified handyman jack to install them.
    I thought the J5 had shock cords like a PA12. I thought the Pacer/ Tri-Pacer and the later Super Cubs and Pawnees were the only ones using hydrosorbs.
    Steve Pierce

    Everybody is ignorant, only on different subjects.
    Will Rogers

  12. #12
    Charlie Longley's Avatar
    Join Date
    Jan 2008
    Location
    Arlington, WA
    Posts
    421
    Post Thanks / Like
    Quote Originally Posted by Steve Pierce View Post
    I thought the J5 had shock cords like a PA12. I thought the Pacer/ Tri-Pacer and the later Super Cubs and Pawnees were the only ones using hydrosorbs.
    I misspoke the J-5 has external shock struts and bungees similar to a J-3. The PA-12 has internal bungees and a rubber bumper.

  13. #13
    R. JOHNSON's Avatar
    Join Date
    Sep 2003
    Location
    DODGEVILLE WI
    Posts
    372
    Post Thanks / Like
    Quote Originally Posted by Charlie Longley View Post
    Unlike a stock J-5 a stock PA-12 doesn’t have hydrosorbs. The shock cords are buried in the belly. It would be interesting getting an engine hoist in there. I use a modified handyman jack to install them.
    Was a J-5C, same as a PA-12 shock arrangement I believe. Raise the tail and take the door off.
    Ryan

  14. #14
    Charlie Longley's Avatar
    Join Date
    Jan 2008
    Location
    Arlington, WA
    Posts
    421
    Post Thanks / Like
    Quote Originally Posted by R. JOHNSON View Post
    Was a J-5C, same as a PA-12 shock arrangement I believe. Raise the tail and take the door off.
    I didn't realize that. All the J-5's I've seen had external shock struts and bungees.

Similar Threads

  1. shock cords
    By capav8 in forum Experimental Cubs
    Replies: 4
    Last Post: 01-30-2011, 01:45 AM
  2. Shock Cords
    By MULESKINNER in forum Cafe Supercub
    Replies: 6
    Last Post: 11-24-2006, 11:15 PM
  3. Shock cords
    By Swedcub in forum Cafe Supercub
    Replies: 7
    Last Post: 11-12-2004, 02:16 PM

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •