Would you recommend I Tef Gel the bolts this winter? Sent from my iPhone
> On Sep 13, 2022, at 11:43 AM, Bill Coleman via CnC-List > <cnc-list@cnc-list.com> wrote: > > > Nope. > I can recall torquing on my 39, I have a 3/4" torque wrench with a 4 foot > extension - I would have to put my left foot on the top of the socket > extension, and my other foot on the bulkhead while pulling on the 4 foot > extension, and that was hard. I eventually put Tef-Gel on the threads which > allows you to use a little less torque. Stainless LOVES to gall on itself, > and once a nut starts to lock up, you are screwed! No Pun intended. > This comment below is from the Tartan site. > > Bill Coleman > > Keelbolt Torque 6/21/02 > > Good morning [all]. It appears the [folks here] have been busy coming up with > questions regarding our keel installations which have been surfacing > ever since I've been monitoring the list. I hope the following will answer > some of your questions: > > Tartan uses a "Live" joint to mate the keel to the hull. > > A live joint is a joint that is able to flex during thermal expansion and > contraction as well as accommodate movement in the structure while > normally loaded as well as those occasional abnormal loads (grounding). > > This installation has been in use since the early 1960's with great success. > One of the great advantages of this installation is that tightening the > keel bolts will not promote water intrusion. > > We use a two-part THIOKOL adhesive sealant between the keel to hull > joint which creates a permanent gasket. As you know, gaskets > are used elsewhere on your boat such as on the engine water pump. > > Tightening the bolts on gasketed seals does not promote leaks as long > as the bolts are evenly torqued. > > Keel bolts should be torqued to the following specifications: > 1" bolts should be maintained at 350 ft/lbs > 3/4" bolts at 250 ft/lbs and > 1/2" bolts at 180 ft lbs. > > Tartan no longer covers up the keel to hull joint with glass tape for > cosmetic > purposes. For the last several years we have been leaving the seam > exposed and faired with a THIOKOL bead to eliminate the maintenance > issues with glass tape. Some other manufacturers install their > keels with an epoxy joint. We don't find this to be reliable since > the lead will expand and contract at a different rate than the > fiberglass. If the bolts become loose the joint will fail and there is no > chance of tightening up the bolts to eliminate a leak. A sudden > impact can also jar the joint enough to break the bond. > > There you have it. I hope I answered all the keel joint questions. > George GuldenTartan > Yachts > > >> On Tue, Sep 13, 2022 at 10:58 AM Joe Della Barba via CnC-List >> <cnc-list@cnc-list.com> wrote: >> I am using these numbers: >> >> http://cncphotoalbum.com/doityourself/torquebolts/torquebolts.htm >> >> Are they wrong? >> >> >> >> Joe Della Barba >> >> Coquina C&C 35 MK I >> >> Kent Island MD USA >> >> >> >> >> >> >> >> From: Wyatt via CnC-List <cnc-list@cnc-list.com> >> Sent: Tuesday, September 13, 2022 10:52 AM >> To: Stus-List <cnc-list@cnc-list.com> >> Cc: j...@dellabarba.com; Wyatt <wyattchamp...@gmail.com> >> Subject: Stus-List Re: C&C 35 MK I Keel Bolts >> >> >> >> That’s too much torque? I’ve seen C&C specs based on nut size, and for my >> 36-1 it was around 150 ft-lb >> >> >> >> On Tue, Sep 13, 2022 at 10:46 AM Joe Della Barba via CnC-List >> <cnc-list@cnc-list.com> wrote: >> >> I should have driven down and got it. 350 pounds is a LOT. My arms are still >> sore! >> >> FYI – what you think is really tight with a normal extension is about 150 >> pounds, not 350. I have about 4 feet total to get to 350. >> >> If anyone needs to borrow the torque meter let me know. >> >> >> >> >> >> Joe Della Barba >> >> Coquina C&C 35 MK I >> >> Kent Island MD USA >> >> >> >> >> >> >> >> >> >> From: Josh via CnC-List <cnc-list@cnc-list.com> >> Sent: Monday, September 5, 2022 4:18 PM >> To: Stus-List <cnc-list@cnc-list.com> >> Cc: Josh <muckl...@gmail.com> >> Subject: Stus-List Re: C&C 35 MK I Keel Bolts >> >> >> >> You can come borrow my torque multiplier. >> >> https://www.youtube.com/watch?v=n6B0IPKQERc >> >> Josh Muckley >> S/V Sea Hawk >> 1989 C&C 37+ >> Solomons, MD >> >> >> >> Sep 5, 2022 14:09:28 Joe Della Barba via CnC-List <cnc-list@cnc-list.com>: >> >> Those sizes are correct – thanks! >> >> I don’t have a torque wrench that big, so I have them “tight”. I just >> ordered this thing, so I can set them exactly: >> >> https://www.amazon.com/dp/B009GLITFW?psc=1&smid=ATVPDKIKX0DER&ref_=chk_typ_imgToDp >> >> Joe Della Barba >> >> Coquina C&C 35 MK I >> >> Kent Island MD USA >> >> From: Thomas Delaney via CnC-List <cnc-list@cnc-list.com> >> Sent: Sunday, August 28, 2022 10:08 AM >> To: Stus-List <cnc-list@cnc-list.com> >> Cc: j...@dellabarba.com; Thomas Delaney <tomcdela...@gmail.com> >> Subject: Stus-List Re: C&C 35 MK I Keel Bolts >> >> Hi Joe, >> >> I believe it is 1 1/8" for the front-most nut and 1 1/2" for the rest. >> >> Best, >> >> Tom
