I hate to say this, but is it possible that you have a case of a cold weld between the turnbuckle and the bolt?
Also look at the below. You may want to be careful with acetone on the deck. Marek Penetrating Oils Machinist's Workshop magazine recently published some information on various penetrating oils that I found very interesting. Some of you might appreciate this. The magazine reports they tested penetrates for break out torque on rusted nuts. They are below, as forwarded by an ex-student and professional machinist. They arranged a subjective test of all the popular penetrates with the control being the torque required to remove the nut from a "scientifically rusted" environment. *Penetrating oils ........... Average torque load to loosen* No Oil used ...................516 pounds WD-40 ..................... ... 238 pounds PB Blaster .................... 214 pounds Liquid Wrench ...............127 pounds Kano Kroil .................... 106 pounds ATF-Acetone mix.............53 pounds The ATF-Acetone mix is a "home brew" mix of 50 - 50 automatic transmission fluid and acetone. Note this "home brew" released bolts better than any commercial product in this one particular test. Our local machinist group mixed up a batch and we all now use it with equally good results. Note also that "Liquid Wrench" is almost as good as "Kroil" for about 20% of the price. Steve from Godwin-Singer says that ATF-Acetone mix is best, but you can also use ATF and lacquer thinner in a 50-50 mix. *ATF=Automatic Transmission Fluid -----Original Message----- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of PETER OCAMPO via CnC-List Sent: Friday, August 18, 2017 20:11 To: cnc-list@cnc-list.com Cc: PETER OCAMPO <bcwwka...@gmail.com> Subject: Stus-List Frozen turn buckles had my rig checked and rigger found turn buckles frozen He could tune short stays but long stays no movement He advised should be good for 20-25 knots but don't push it Is it okay to use pb blaster on turnbuckles or is there a recommendation for something else hate to say it winter storage coming sooner then I want History of boat not known if stick has been down in 20+years Last ten guess is very light sailing last 3 on the hard Does not appear to ever been raced Thanks Peter C&c 40 1983 Goonie island Portland Maine Sent from my iPhone _______________________________________________ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! _______________________________________________ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
