Rescue 911
Gottlieb, 1994I was stripping down a R911 playfield, but a handful of threaded posts in t-nuts appear to have been secured--I'm assuming by loctite.
Wiggling the post clockwise and counterclockwise only succeeded in loosening the t-nut from the playfield. In once case, the t-nut spins freely. I can't seem to grip the t-nut that is spinning freely.
What else could I try that might unscrew these posts?
Mine usually resulted in snapping bolts.. Which is why I know carry those posts and t nuts in stock... But possibly a quick zap of heat to loosen the loctite
Yes, heat the post from under the playfield with a solderiing iron with a big tip til the post gets hot, most of the time it will then come out without breaking. MOST of the time.
I have had great success using my soldering gun to heat up the t-nut and having the threaded Union coming apart easily. I did this while restoring a Jokerz. It worked every single time.
Ok, I've been practicing on a blown out R911 playfield, but have been largely unsuccessful.
I heat the post for 30-60 seconds with a soldering iron cranked up to 900'F.
With the short posts that go through plastic posts, I've been successful 2 out of 5 times--for failures, the screw still twists and breaks or the t-nut loosens from the playfield and just spins.
With the taller thicker posts, I have not been successful at all. The t-nut just ends up loosening and just spins.
Any suggestions to either unscrew the posts without failing, or what to do when the t-nut just spins?
Ok, it looks like I found a way to remove the t-nut. If the t-nut was raised slightly above the rear side of the playfield, then I held it with vice grips and unscrewed it posted from the top if the playfield.
If the t-nut was still flush with the rear of the playfield, I cut off the post's threads with a dremmel tool so it was flush with the t-nut, then drilled out the post from the bottom of the t-nut.
Quoted from ForceFlow:what to do when the t-nut just spins?
Throw a small hexhead screw into the bottom of the playfield snug against the T-nut, that will keep it from spinning and falling out of the bottom. A lot of manufacturers actually did this with tnuts.
Quoted from ralphwiggum:Throw a small hexhead screw into the bottom of the playfield snug against the T-nut, that will keep it from spinning and falling out of the bottom. A lot of manufacturers actually did this with tnuts.
I was trying to *remove* the post from the playfield---not secure it.
Quoted from FrankJ:I just order a bunch from PBR along with the other parts I need when I tear down a GTL. Snap off and replace when I re-populate the playfield. A couple of bucks vs. the aggravation and time is an easy trade for me.
And that would be easy to do with the thin posts like this:
d938dbdcfb29424e7f0b8816f099458b8f586042_(resized).png
However, I was trying to remove the larger, thicker posts like this:
4fc99edfadb4092bd92a70d68bbc536799a123ae_(resized).png
These posts can't really be "snapped off".
Quoted from ForceFlow:I was trying to *remove* the post from the playfield---not secure it.
Right.... those t-nuts tend to spin on the gottliebs, I always throw a screw into the bottom of them all, heat the bottom with an iron and then remove the post. Once the t-nuts start spinning, it becomes a real chore trying to remove those posts, even if heated.
Wanna join the discussion? Please sign in to reply to this topic.
Great to see you're enjoying Pinside! Did you know Pinside is able to run without any 3rd-party banners or ads, thanks to the support from our visitors? Please consider a donation to Pinside and get anext to your username to show for it! Or better yet, subscribe to Pinside+!
This page was printed from https://pinside.com/pinball/forum/topic/loctite-on-posts-on-gottlieb-sys3 and we tried optimising it for printing. Some page elements may have been deliberately hidden.
Scan the QR code on the left to jump to the URL this document was printed from.
Saskatoon, SK
Shorewood, IL