Re: Stus-List Keel bolt torque

Hi Josh, I tried a number of sources to try to find torque values for the largest bolts, including exchanging a few emails with Mars Keel to no avail. Then I just did some internet research to come up with a torque value I could live with, keeping in mind there was some fibreglass laminate that i

Stus-List Coin under mast

In sailboating and shipbuilding, Mast Stepping is the process of raising the boat's mast. It also refers to a ceremonial occasion which occurs when the mast is stepped, towards the end of a ship's construction. The ceremony involves placing or weldi

Re: Stus-List Coin under mast

The 1979 Canadian coin I got for my boat is like this one: https://www.ebay.com/itm/1979-Canada-Silver-Dollar-Specimen-Griffon-Free-U-S-Shipping/231950211379?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D1%26asc%3D41375%26meid%3D4ca124b06e9f4184b552b38f2d6bfb23%26pid%3D100011%26rk%3D4%26rkt%3D12%

Re: Stus-List Keel bolt torque

When I tightened my keel bolts 3 years ago, I also found this discrepancy in torque values and went with the lower numbers rather than the C&C numbers. I figured it would do little harm having them lower than too high and also went with dry as opposed to lubricated. I haven’t checked them since

Re: Stus-List Coin under mast

After rebuilding Grenadine’s mast step supports and stepping the mast last offseason, I happened to find a 1972 US quarter in my pocket. I figured that was lucky, since Grenadine was built in 1972, so I placed the coin in the mast step. I took her mast down again this offseason to inspect the

Re: Stus-List Keel bolt torque

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 contributi

Re: Stus-List Keel bolt torque

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 wrote: > Torque specs are affected by, as a minimum, the following: > > Bolt size > Grade of bolt > Material, SS or st

Re: Stus-List Keel bolt torque

Well, I wish I had known that 9 months ago. I went through considerable gymnastics to get mine even close to the C&C spec pages and now I'm concerned I've overtightened them. I did stop a bit shy of the values, but I noticed that the washers deformed considerably when I tightened them. I did sail m

Re: Stus-List Keel bolt torque

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 agai

Re: Stus-List Keel bolt torque

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 lube

Re: Stus-List Keel bolt torque

I also use tef-gel to protect against galling however I never have backed off when redoing the torque on my bolts. I always go 10% less on the accepted engineering values. Its been 10 years since I redid my keel, backing plates are 5/16 stainless perhaps this year I will back off bolts and add m

Re: Stus-List Keel bolt torque

I am the one that created the table on the C&C Photo Album.  It has been so long ago that I don't remember where I got the raw data.  I agree that the 1/2 nut values seem high.  I originally created the table when I bought Corsair in 1996.  One of the survey items was that the keel bolt backing