At least the 35 MK I can be steered by the tiller. I think the 35 is the only boat I have sailed where the "emergency tiller" is actually a usable tiller. Before I had an autopilot I used it to steer from under the dodger. Joe Coquina
From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Chuck Gilchrest via CnC-List Sent: Thursday, January 24, 2019 9:23 AM To: cnc-list@cnc-list.com Cc: Chuck Gilchrest Subject: [EXTERNAL] Re: Stus-List Touche' steering system disassembly - issues of concern discovered Dennis, While reusing a damaged sprocket isn't the best idea, the one thing I'd do to prevent the chain override in the future is to get the bolt and nut out of the chain and install a legit steering stop at the "quadrant" (really a radial drive). As discussed by others, this would involve bolting an upright heavy duty pin on the drive wheel that would hit against a wood block on either side that was fiberglassed to a bulkhead. If this sounds like too much work, the other option is to install a tether style rudder stop that mounts a loop or padeye to the drive wheel and anchors a high strength tether (usually a UHMWPE 12 strand like Amsteel or similar) to a point on the hull or below deck, thus limiting travel. In tether rudder stops, a shock absorbing snubber is installed in the system to prevent the tether from ripping apart a bulkhead or below deck fitting. Edson's Steering System Planning Guide found on their website can show you several ways to install rudder stops. But relying on a bolt installed on the steering chain to limit rudder travel has the potential of disabling the entire steering system if pushed beyond the limit. You may also consider chain replacement if the chain has been run over broken sprocket teeth for an extended period of time. Finally, one of the main reasons Rob recommended changing out the chain/wire assembly for most steering systems is typically not due to excessive wear of the chain on the sprockets, but instead as a result of metal fatigue due to crevice corrosion between the link plates of the chain. Stainless does not like to be deprived of oxygen and when it is, it performs very similarly to mild steel (it rusts!) and the inside portion of a chain that you can't see are the likely places for the corrosion to occur. Bottom line, I never like using the terms "steering" and "failure" in the same sentence and I try to do everything possible to make sure my steering system is up to snuff on my 35 year old boat. Best of luck! Chuck Gilchrest S/V Half Magic 1983 35 Landfall Padanaram, MA From: CnC-List <cnc-list-boun...@cnc-list.com> On Behalf Of Russ & Melody via CnC-List Sent: Thursday, January 24, 2019 8:56 AM To: cnc-list@cnc-list.com Cc: Russ & Melody <russ...@telus.net> Subject: Re: Stus-List Touche' steering system disassembly - issues of concern discovered Hi Dennis, I will guess that the sprocket damage is as you surmise, chain stop bolt riding past the limit. Notice chain link gouge in port side housing too when it rode up on the sprocket. I expect it was an single event while backing down and the person lost control of the wheel. There is enough momentum there to put the wheel hard over in a second and cause the damage. Your intuition is "bang on", reassemble without removing the sprocket. Trying to get that sprocket off the axle is flirting with disaster. Reassemble exactly as before, as the damaged teeth are not in the normally loaded area anyhow. Cheers, Russ ex - Sweet 35 mk-1
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