Per Chuck's previous comments, the radial wheel has a keyway and key, so I
don't think it can slip. Similarly, the helm wheel has a keyway and key. I've
tightened the idler pully plate bolts, but I suspect there is rust going on
under there, which will mean a full disassembly.
Sigh...
Bruce Whitmore
(847) 404-5092 (mobile)
bwhitm...@sbcglobal.net
From: Michael Brown via CnC-List <cnc-list@cnc-list.com>
To: cnc-list@cnc-list.com
Cc: Michael Brown <m...@tkg.ca>
Sent: Wednesday, January 24, 2018 11:06 AM
Subject: Re: Stus-List Edson wheel chain jumping links?
If the radial wheel was slipping on the rudder post it could cause that issue.
Maybe use a sharpie and put a line down the rudder post and onto the radial
wheel.
20º is not much movement, you may require a fine line.
Michael Brown
Windburn
C&C 30-1
Date: Wed, 24 Jan 2018 01:54:12 +0000 (UTC)
From: Bruce Whitmore <bwhitm...@sbcglobal.net>
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
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