Hi Josh, So what size was bolt #7 on Sea Hawk? Mine (I think) is actually a 1-13/16" nut, 1-1/8" stud, torqued to 400 lbs.
Curious minds... Ken H. On 13 January 2018 at 20:00, Josh Muckley via CnC-List < cnc-list@cnc-list.com> wrote: > So two (#2&4) of the largest bolts fit the 2-3/16ths socket (tight) and > two (#3&6) don't. I remeasured and sure enough the ones I can reach are > 56mm and 57mm. Looks like I'll be buying an additional socket... 2-1/4! I > should have heeded Ken's advice more closely. > > What are the chances they used different size studs/nuts verses the > chances that the tolerances on the nuts simply allows a 2-3/16 socket to > fit a 2-1/4 nut? > > Josh Muckley > S/V Sea Hawk > 1989 C&C 37+ > Solomons, MD > > > > On Jan 2, 2018 3:40 PM, "Ken Heaton" <kenhea...@gmail.com> wrote: > >> Hi Josh, >> >> I've continued to use 600 lbs for the 1.5" bolts as I've re-torqued them >> occasionally. I've used a 2-1/4" socket for those but the 2-3/16" you >> listed may be a better fit, I'm not sure. >> >> I think bolt #7 is actually a 1-13/16" nut, 1-1/8" stud, torqued to 400 >> lbs. Perhaps you should double check that one to be sure? >> >> I've needed to use a 1-1/2" Deep Socket on # 1 as it is a longer stud to >> allow two nuts to sandwich a washer with a stud welded on for a grounding >> cable from the mast step. >> >> The other values you've listed (and the tef-gel) are what I've used >> before. >> >> Ken H. >> >> On 2 January 2018 at 16:18, Josh Muckley via CnC-List < >> cnc-list@cnc-list.com> wrote: >> >>> Ok Guys, >>> Since I have the mast out, this provides the rare opportunity to access >>> ALL of the keel bolts. I've measured each of the bolt and nut diameters >>> and checked the archives for torque specs. I intend to buy a toque >>> multiplier and the appropriate sized sockets. I think I can do it for less >>> than the yard is going to charge and I'll come out of it with some tools. >>> I'll also be able to tell myself that it was done correctly. >>> >>> That being said it sounds like the best practices are are follows: >>> - be on the hard >>> - loosen the bolts one at a time, clean, and lubricate with tef-gel >>> - reinstall and torque at progressively higher levels. >>> >>> I was unable to find the torque spec for my 1.5" bolt in the website but >>> Ken Heaton cited 600lbs in one of his past responses. >>> >>> Keel bolts (fwd to aft): >>> Nut stud torque >>> 1 - 1 1/2 (38mm) 1 (25mm) 350 >>> 2 - 2 3/16 (56mm) 1 1/2 (38mm) 600? >>> 3 - 2 3/16 (56mm) 1 1/2 (38mm) 600? >>> 4 - 2 3/16 (56mm) 1 1/2 (38mm) 600? >>> 5 - 1 7/8 (47.5mm)1 1/4 (32mm) 450 >>> 6 - 2 3/16 (56mm) 1 1/2 (38mm) 600? >>> 7 - 1 1/2 (38mm) 1 (25mm) 350 >>> 8 - 3/4 (19.5mm) 1/2 (13mm) 80 >>> >>> >>> *Anything I'm missing?* >>> >>> >>> Thanks, >>> >>> Josh Muckley >>> S/V Sea Hawk >>> 1989 C&C 37+ >>> Solomons, MD >>> >>> _______________________________________________ >>> >>> 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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