Most of us who have been on the list a while are pretty well versed in torquing the keel bolts. In my opinion, it's one of the more technical tasks on our boats.
However, there have been a bunch of pearls of wisdom in this thread. Someone mentioned the dry vs lubed adjustment. 10% less for lubed. I might have missed it but I don't think anyone mentioned that the nuts should be backed off then torqued. The action of tightening should be smooth and gradual. If the process stops before achieving full torque, I'd be inclined to loosen the nut and start over. Just my opinion. There was one mention of galling of the threads. This might be helpful: https://www.fastenal.com/en/72/galling As a couple listers mentioned, if the washers or backing plates deform or the underlying fiberglass structure shows signs of collapse, it would be wise to correct that condition before placing undue strain on the keel, i.e. sailing. Also, although some might disagree, I think conventional wisdom indicates the bolts should be torqued while the boat is on the hard. That's the way it was built. Dennis C. On Wed, Jan 3, 2018 at 11:21 AM, Dennis C. <capt...@gmail.com> wrote: > Don't think you did. I was just offering some clarification for anyone > who might be technically challenged. > > I be an engineer. It's what I do, er, did. > > That's what's great about this list, with our combined intellect and > experience, we stand a good chance of doing something right. :) Then > again, even a blind squirrel finds a nut every now and then. > > Dennis C. > > On Wed, Jan 3, 2018 at 10:17 AM, Josh Muckley via CnC-List < > cnc-list@cnc-list.com> wrote: > >> Follow my links and tell me if I'm missing something. I assumed 316 >> stainless, Course thread, and lubed with tef-gel. >> >> Josh >> >> On Wed, Jan 3, 2018, 10:44 AM Dennis C. via CnC-List < >> cnc-list@cnc-list.com> wrote: >> >>> Torque specs are affected by, as a minimum, the following: >>> >>> Bolt size >>> Grade of bolt >>> Material, SS or steel >>> Thread pitch >>> Lubed vs dry >>> >>> Make sure you're comparing apples to apples. >>> >>> Dennis C. >>> _______________________________________________ >>> >>> Thanks everyone for supporting this list with your contributions. Each >>> and every one is greatly appreciated. If you want to support the list - >>> use PayPal to send contribution -- https://www.paypal.me/stumurray >>> >>> >> _______________________________________________ >> >> Thanks everyone for supporting this list with your contributions. Each >> and every one is greatly appreciated. If you want to support the list - >> use PayPal to send contribution -- https://www.paypal.me/stumurray >> >> >> >
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