Bruce, It cracked due to crevasse corrosion. Good idea to inspect annually. Chuck Gilchrest S/V Half Magic 1983 35 Landfall
Sent from my iPhone > On Aug 20, 2018, at 3:03 PM, Bruce Whitmore via CnC-List > <cnc-list@cnc-list.com> wrote: > > As a few posters here know, I am in the process of replacing the idler plate > on my 1994 C&C 37/40+. During the process of pulling the binnacle and going > through it, I found one of the links in the chain had a crack/break in it. > > Here's a photo: > > https://www.dropbox.com/s/jaejlvvl2zsq7f4/Steering%20Chain%20%232.jpg?dl=0 > > I have chain on order. So, now for the question: Anyone know why this crack > might have developed? I looked at some websites, and essentially fatigue > failure or stress corrosion cracking was suggested. That said, given the > breaking strength of the chain, and the general good condition of the chain > and sprocket, it would seem unlikely that our steering systems would generate > the kind of stresses capable of cracking a link in the chain. > > Nonetheless, this should serve as warning - don't just assume the chain is > fine. Had I not been in a position of removing the chain and inspecting it > closely, I could have easily overlooked this! > > Food for thought, > > Bruce Whitmore > 1994 C&C 37/40+ > (847) 404-5092 (mobile) > bwhitm...@sbcglobal.net > _______________________________________________ > > 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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