Rick, One trick I have used in the past includes a two front approach.
First off, I have never found liquid wrench to be of much use for anything. My choice would be PB Blaster - another great thing to come out of Cleveland. HI. Secondly, getting a little heat into the screw has often helped. I did this by taking an allen key and placing it in the screw ( you could of course use a flat head screwdriver or piece of stock to make contact if the screw to be loosened is a flat head.) I then applied heat to the allen wrench with a propane torch. I continued this to the point where the accumalated penetrating oil smoked. I left the wrench in place until cool. I had to do this a couple of times ( alternating heat and the PB blaster) but eventually the set screw "unlocked" and moved freely. I cannot say the same for at least one HRO knob I had a run in with however. There a hack saw was necessary. 73 de KA4JVY Mark --- Rick Brashear <[EMAIL PROTECTED]> wrote: > Here we go again. I know this was discussed in the past, but my memory is > all but non existent on such matters. I have a larger knob, about 3 inches > in diameter, with two Allen set screws in it. The insert appears to be > brass, the set screws are iron of some kind. One has had the head messed up > and I will likely have to drill it out, but the other is in tact. Both are > frozen solid. I soaked them in Liquid Wrench for an hour or more, but no > luck getting either loose. Same thing with WD-40. Does anyone have a magic > cure short of drilling them out? > > Thanks for any help ya'll can offer... > Rick/K5IZ > ______________________________________________________________ > AMRadio mailing list > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Partner Website: http://www.amfone.net > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:[email protected] > To unsubscribe, send an email to [EMAIL PROTECTED] with > the word unsubscribe in the message body. > "Everything that can be invented has been invented." (And he went on to recommend that the US Patent Office be thenceforth closed.) - Charles H. Duell, Commissioner, U.S. Office of Patents, 1899 __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ______________________________________________________________ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected] To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
