(Topic ID: 146996)

Stripped screw hole repair - one way to do it

By cody_chunn

8 years ago



Topic Stats

  • 4 posts
  • 3 Pinsiders participating
  • Latest reply 8 years ago by terryb
  • Topic is favorited by 10 Pinsiders

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    14_tap_with_hammer.jpg
    13_cut_plugs_off.jpg
    11_insert_plug_into_hole.jpg
    10_dip_in_tite-bond.jpg
    09_remove_plug_with_razor_tip.jpg
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    07_split_down_the_middle.jpg
    06_break_at_score_line.jpg
    05_score_around_the_skewer.jpg
    04_cut_length.jpg
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    02_unstripped_hole.jpg
    001_what_youll_need.jpg
    01_stripped_post_hole.jpg
    #1 8 years ago

    I know everyone likes to do things the way they like to do things, so this thread is not intended to be a tutorial on how you should do anything, rather, it is one way to do one job in a way that has worked extremely well for many years.

    You always hear "use toothpicks" or "use skewers". I suppose both will work but I have found toothpick wood either too soft or too brittle, depending. Anyway I'm not trying to start a debate on which is better. This is just how I do it, and documenting the process might help a few beginners.

    The first step to repairing a stripped screw or post hole, is finding a stripped hole. There's one now...

    01 stripped post hole.JPG01 stripped post hole.JPG

    I guess I'll need some stuff to plug that thing up.

    001 what you'll need.JPG001 what you'll need.JPG

    The hole had another one behind it that didn't look too good, so I pulled the post from the other side to see what was what. Turns out the other hole is for conservative/liberal adjustment. I'm leaving it conservative.

    02 unstripped hole.JPG02 unstripped hole.JPG

    The hole is slightly smaller than my skewer, but that's OK, I don't use them whole anyway.

    03 slightly smaller than my skewer.JPG03 slightly smaller than my skewer.JPG

    Cut a length of skewer slightly shorter than the playfield thickness. We don't want it protruding up out of the hole.

    04 cut length.JPG04 cut length.JPG

    Once you have your measurement, CAREFULLY score around the skewer.

    05 score around the skewer.JPG05 score around the skewer.JPG

    Flex the scored end back and forth in the directions of the compass. This will prevent strips from peeling down the skewer.

    06 break at score line.JPG06 break at score line.JPG

    Now use the blade to CAREFULLY split the plug down the middle, then split those halves down the middle and maybe cut another length and split that one several times.

    07 split down the middle.JPG07 split down the middle.JPG

    More to come...

    #2 8 years ago

    Test fit the plugs in the hole. Not sticking up above the playfield surface? Good to go!

    08 test-fit length.JPG08 test-fit length.JPG

    The pieces are easily removed with the blade tip.

    09 remove plug with razor tip.JPG09 remove plug with razor tip.JPG

    Now dip the plugs in some tite bond...

    10 dip in tite-bond.JPG10 dip in tite-bond.JPG

    And insert them into the hole. One at a time until the last one barely goes in and needs a little tap to get it all the way in. Don't worry if it breaks over, just snip it off low as you can.

    11 insert plug into hole.JPG11 insert plug into hole.JPG

    If any plugs are sticking up higher than the playfield surface, snip them off as low as you can. If you don't they will hang up your cleaning and polishing rags every time.

    13 cut plugs off.JPG13 cut plugs off.JPG

    If necessary, give the plugs a little tap on the head to make sure they're fully seated in the hole. Be gentle, it only takes a very light tap and you can even use the butt of your screwdriver handle.

    14 tap with hammer.JPG14 tap with hammer.JPG

    Then you wait overnight for it to cure, then reassemble and you will have a super tight mate between post/screw and playfield.

    FIXED!

    15 plugged and curing.JPG15 plugged and curing.JPG

    #3 8 years ago

    One might call this repair method "King Kool". Nice Cody.
    --
    Chris Hibler - CARGPB #31
    http://www.Team-EM.com
    http://webpages.charter.net/chibler/Pinball/index.htm
    http://www.PinWiki.com - The Place to go for Pinball Repair Info

    #4 8 years ago

    Nice job. Thanks for sharing Cody.

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