Pull it out and hammer just the end on a vise or anvil to spread the metal a little and tap it back in.
There is nothing under the PF to hold it they are just pressure fit pressed into the hole.

This is an old post but just got started tearing down my Flash Gordon. Taking pics along the way. Both wire guides on the return lanes showed arcs where they had come loose and scratched the playfield. Turned out each was broken at the area where the metal had been pressed, can't find them anywhere. Now just trying to find a thread where I saw someone had made a custom tool for making these wire guides (though I'd be okay just buying them if I could find them - Bally Part# M-121-59). I imagine on Flash Gordon these will take a beating.

2014-03-16 10.33.34.jpg

What's the outside-to-outside measurement of this guide?

2 5/8" outside to outside and 1 1/8" tall (3/4" top to top of ridge):
2014-03-17 17.57.30.jpg2014-03-17 17.56.21.jpg2014-03-17 17.56.02.jpg

Contacted PBR, Marco, no one seems to have these. Both are broken and my restore is in progress.

http://www.marcospecialties.com/pinball-parts/77-8593

Just get this jig and make your own out of "piano wire" (also available at Marco)

Very easy.

Already bought that, just don't have those ribs. Might make that tool from another thread here for stamping them, but wonder if the ribs are needed if the wire is long enough.

You don't need the barbs on the legs.

A speck of white glue in the hole and they ain't coming out until you pull them out.

Good to know, just going to have to get some calipers (bout time really) to measure these, get the wire and bend them up I guess.

I just tried this jig myself. Made a replacement ball guide for my Special Force. The wire Marco's carried was only 0.08 inches in diameter. The holes are just a shade larger. I put the new ball guide in with a couple drops of lock tight super glue for wood and metal. So far so good, but time will tell. Anyway, I'm glad I found this thread because getting old Bally ball guides seems to be difficult.