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PA column question RE: Speaker bolts [message #11810] Sat, 12 September 2009 15:31   kustomoholic Messages: 227 Registered: March 2009 Location: Tulsa,oklahoma Senior Member I am needing to replace a 12" from one of the old columns I have I got all the nuts off save 1 and it simply spins with the bolt in place. Is there a way to get at it with out trashing the thing to remove it. Does the cab disassemble.. can you remove the front speakerboard and get at the bolt front to secure both ends and remove the nut so I can get the old blown driver out. Once out I can repair the thing...Does the grill come out with the baffle in 1 piece? Separate? I would appreciate any tips you can give me B4 I tackle it with the SWAG method of repair...LOL Kraig Report message to a moderator

Re: PA column question RE: Speaker bolts [message #11811 is a reply to message #11810] Sat, 12 September 2009 16:37   LesS Messages: 477 Registered: December 2002 Senior Member First, I would put some light oil on the bolt. Then put two nuts on the bolt and tighten against each other - then you can put a wrench on the two nuts to hold the bolt stationary while you turn the other nut. (Don't read this too fast - it might sound like a bad joke.) If that doesn't work try slipping a putty knife under the speaker to hold against the bolt - or a screwdriver to apply pressure as you try to turn the nut. (If none of that works, try a few good swear words.) Once you get it off, you can fix it by putting a nut on the stud (without the speaker mounted). (I have done this before and it did not affect mounting the speaker, especially if it has a gasket on the outside edge.) Superglue (before you put on the nut) can help a little too. You can't get to the mounting stud from the front due to the grille cloth. -Les S Report message to a moderator

Re: PA column question RE: Speaker bolts [message #11812 is a reply to message #11811] Sat, 12 September 2009 17:14   kustomoholic Messages: 227 Registered: March 2009 Location: Tulsa,oklahoma Senior Member One of the things I did was oil all the bolts "unfortunately after" I had this one turning in the hole in the baffle... wish I'd done it before I started to take it out. I had no trouble with the other 7. I may use some vise grips to fasten on the tip of the bolt to fix it while I move the nut up the shaft. Once I get some clearance I'll whip out the old Dremel and use a cut off wheel to cut the bolt between nut and speaker frame and the push out the bolt and fill the hole with a dowel and simply use a screw to attach the speaker to the board. I was hopping for a less destructive method but once it's in and the backs on who will notice.... I simply want to use these columns so this imperfection won't matter. I have had these columns for a while and I am at a point that Except for this uncooperative fastener..I have everything I need to complete the refurb project. I was hoping that I could get to the head of the bolt to potentially reuse the fastener after fixing it in the baffle board permanently. Thanks for letting me know about the grill clothe being fixed to the board. I would prefer to have the speaker frame intact to get it reconed at some point. Kraig Report message to a moderator

Re: PA column question RE: Speaker bolts [message #11820 is a reply to message #11810] Sun, 13 September 2009 14:49 rodak Messages: 511 Registered: October 2001 Location: Georgia Senior Member I had to do the "Dremel with a cutoff wheel" trick on a couple of bolts in my Kombo organ. Not the most fun or desireable thing to do, but as a last resort, it definitely works. www.combo-organ.com Report message to a moderator

Re: PA column question RE: Speaker bolts [message #11826 is a reply to message #11820] Sun, 13 September 2009 18:28   kustomoholic Messages: 227 Registered: March 2009 Location: Tulsa,oklahoma Senior Member Thank God somebody invented the Dremel!!!!! What a lifesaver!!!!! These are old 4-12's that have plenty of dings and other goobers detracting from a "likenew" appearance so functionality is what I am after. I got lucky and found a single 4-12 with 4 good speakers for 40 bucks so 10 bucks a speaker was a good deal though cosmetically it looks like crap. The better looking Ross cabs had 4 bad speakers though I may be lucky since I can only verify that 3 are bad instead of 4.. There may be an extra 12 available soon!!!! Kraig Report message to a moderator

Re: PA column question RE: Speaker bolts [message #11833 is a reply to message #11810] Mon, 14 September 2009 06:48   stevem Messages: 4730 Registered: June 2004 Location: NY Senior Member When I have seen that issue coming I breake out my propane torch, fire it up to low heat and give the nut a good heating. This expands and breaks the nut to stud rust bond and then I dribble PD balster rust breaker down the stud which wicks in the threads as the stud cools and then all is freed up. You must note to not point the flame at the cone which at times due to the postion the stud was in I had to place a couple of layers of alumimnum foil over the cone to protect it. Antique electronics carrys repalcemnt speaker mounting studs should you need them. Report message to a moderator

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