(Topic ID: 254469)

WPC Transformer bolt stuck

By Pinless

4 years ago


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  • 19 posts
  • 5 Pinsiders participating
  • Latest reply 4 years ago by bssbllr
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    #1 4 years ago

    I’m in the process of “restoring” my STTNG and decided to try my hand at cleaning up and painting the transformer.

    It looked easy enough, but of course I ran into a roadblock. 1 of the bolts is stuck. I’ve tried to persuade it to come out with a hammer and punch, but it won’t budge. Has anyone ever had this issue?

    Is it the varnish that has it frozen? If so, is there a way to loosen it up?

    Thanks for and help in advance.

    #2 4 years ago

    are you good at using heat ? or a pair of vise grips

    #3 4 years ago
    Quoted from luch:

    are you good at using heat ? or a pair of vise grips

    I tried using a pair of vise grips to no avail. I haven’t resorted to heat yet. These things seem to be unobtainium, so I’m trying to be very careful with it.

    #4 4 years ago

    the transformer yes , but the bolt , just use more force , any pictures ?

    #5 4 years ago

    and twist do not push down on fastener as it could push the t-nut through the other side.
    should be easy to do.

    #6 4 years ago

    varnish can lock a bolt in place. I used a paint/varnish stripper when I did mine transformer clean-up because it was really caked on good

    #7 4 years ago
    Quoted from Hawk007:

    and twist do not push down on fastener as it could push the t-nut through the other side.
    should be easy to do.

    It’s actually the the long skinny bolt that attaches the bracket to the transformer. I don’t think there’s a T-nut, just a couple of nylon spacers.

    #8 4 years ago
    Quoted from j_m_:

    varnish can lock a bolt in place. I used a paint/varnish stripper when I did mine transformer clean-up because it was really caked on good

    Do you think it would be safe to put a few drops of paint stripper on the threads like you’d use wd40 for a rusted bolt?

    #9 4 years ago

    if it's the bracket , then you have two mounting points , the bolt on the bottom of the cabinet and the one attaching the bracket to the transformer , undo all the bottom cab bolts , then work on on the long thin one on the bench

    #10 4 years ago

    that's what I did

    remember, the transformer block is just a bunch of interleaved sheets of metal surrounding the copper wound core. just be careful when applying to try and keep the stripper isolated to the bolt

    here are photos from when I did mine
    https://pinside.com/pinball/forum/topic/cleaning-up-a-transformer#post-1812255

    #11 4 years ago
    Quoted from Pinless:

    Do you think it would be safe to put a few drops of paint stripper on the threads like you’d use wd40 for a rusted bolt?

    i would try iso alcohol first to dissolve any coatings. It evaporates 100% clean with no residue

    1 week later
    #12 4 years ago

    Finally got the bolt out after a couple hours worth of work. Of course it was destroyed during the process. The varnish had almost turned into a cement.

    Does anyone know where replacement bolts can be found? No local hardware stores had anything close to the right size.

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    #13 4 years ago

    how many do you want , i have two burned out transformers with all the nuts and bolts and insulators .
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    #14 4 years ago

    here you go , send me a pm need a name and address.

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    #15 4 years ago

    let me know if you need the brackets too

    2 weeks later
    #16 4 years ago
    Quoted from Pinless:

    Does anyone know where replacement bolts can be found? No local hardware stores had anything close to the right size.

    I hope OP is okay. He has a fellow pinsider reaching out to him with the parts he asked and 2 weeks later still nothing. Maybe he sent him a PM. Luch good job on trying to help out.

    #17 4 years ago

    yes he did get a hold of me , i sent the parts and all is good , he did send me a PM to say thanks .

    #18 4 years ago
    Quoted from bssbllr:

    I hope OP is okay. He has a fellow pinsider reaching out to him with the parts he asked and 2 weeks later still nothing. Maybe he sent him a PM. Luch good job on trying to help out.

    Yes, all is well thanks to Luch. We exchanged PM’s, a few $ and I received the hardware a short while later.

    The varnish(?) had solidified in the bolt holes so bad that I ended up having to use a drill bit (by hand) to clean them out.

    I’ll post a final update pic when the cleaning and painting is complete.

    #19 4 years ago

    Awesome to hear fellas, glad to know all went well.

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