Boat_SigSince you are checking everything, check the tapered pin that holds the sprocket to the pedestal shaft.
Doug Allardyce ~~~~~_/)~~~~~ -----Original Message----- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com]On Behalf Of Jeffrey Nelson via CnC-List Sent: Wednesday, January 24, 2018 4:21 PM To: cnc-list@cnc-list.com Cc: Jeffrey Nelson Subject: Re: Stus-List Edson wheel chain jumping links? Do you know any really good practical jokers? I can't imagine a possible way for the chain to jump off the socket and the key's unless they somehow broke would prohibit slipping elsewhere. On 1/23/2018 9:54 PM, Bruce Whitmore via CnC-List wrote: Hello all, OK, I think I have a weird thing going here... I have adjusted the wheel to center the turks head knot straight up when the wheel is centered. I got it all nice & straight a few weeks ago, and came back to the boat to find it about 20 degrees off to port. By the way, were talking about 20% off on the wheel, not 20% of rudder. After installing my autopilot, I again adjusted it, this time getting the cables set to approximately the same amount of adjustment on each side to the adjustment bolts through the radial drive wheel. This required jumping the chain 1 or 2 notches on the wheel sprocket. All was well for a couple weeks, and behold, on Saturday I went back only to find the turks head knot about 20 degrees to starboard. During these adjustments, I have made a point to keep the cable deflection adjusted to be relatively minimal (say 1/2" or so?), without getting so tight as to reduce the feel of the wheel. I've notice no issues whatsoever when we're out sailing. During the first set of adjustments, I noticed the idler wheel bolts were a little loose, and tightened those. Considering the radial wheel bolts connect to each end of the cable, and the cables attach to the chain, I can only think the chain is somehow jumping on the sprocket. Thoughts? Bruce Whitmore 1994 C&C 37/40+, "Astralis" Madiera Beach, FL (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 -- Cheers, Jeff Nelson Muir Caileag C&C 30 Armdale Y.C. Halifax Virus-free. www.avast.com
_______________________________________________ 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