Good suggestions, all – As mentioned, make sure all the setscrews are out, in case there were one on top of another. If someone ground a setscrew into the threads, you could be screwed, no pun intended. Stainless on Stainless galls terribly, which is why everyone is always saying to use Tef jel .
Done properly, those setscrews should go into little depressions so the threads are not mauled, but if someone else messed with it they could have just screwed them into the threads. If it has started to gall, you are in trouble. Maybe let some cutting oil seep into the threads, cutting oil with chlorine, Specifically for SS . Then I would increase your lever length. If worse comes to worse, jack it up a little to make a space, then cut it off and re-weld it when you get the nut off or make another end. Bill Coleman C&C 39 Erie, PA From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Patrick Davin via CnC-List Sent: Tuesday, April 19, 2016 11:45 PM To: cnc-list@cnc-list.com Cc: Patrick Davin Subject: Stus-List Rudder collar "donut" removal I have my boat hauled out now and am trying to drop the rudder. The stainless steel donut that holds the rudder up, above the thrust bearing in the cockpit, is very much stuck. I removed the two set screws and am attempting to unscrew (counterclockwise), with the rudder propped up (enough that that delrin bearing under the donut is free spinning). This is the donut pictured on Wally's page: http://www.wbryant.com/StellaBoat/Projects/steering/bearing/sole/bs02.jpg http://www.wbryant.com/StellaBoat/Projects/steering/bearing/sole/ He got it off with just an oil filter wrench + exhaust hose on past occasions, and later with that strap wrench. I've already applied far more force than a strap wrench with no luck. :( I had planned to have the yard (Seaview) help with this, but apparently they have plenty of fiberglass guys but not enough mechanical guys, and are backlogged on anything mechanical. So if I want this to go faster I can keep trying to do it myself. And saving money by not having them bang away at it for $105/hour is probably good anyway. Though honestly I would happily do that now if they could get it loose. I know Frank of S/V Cool Change had a bear of a time with the set screws: http://cnc-list.com/pipermail/cnc-list_cnc-list.com/2007-March/009523.html (but I guess the donut wasn't a problem?) And I know another owner who used a huge pipe wrench with some padding, and yard assistance, but ended up damaging it and needing to get a new one. Things I've tried: - PB Blaster, every day for 4-5 days, around the top, into the set screw holes, and around the bottom. - Loctite Freeze + Release - oil filter wrench with rubber pieces to grip - threading a bolt into the set screw holes and hammering on that - quickly abandoned this because it started to bend the screws and I realized it would strip the set screw holes. - C clamps - Heat gun (I don't have a torch - however I don't think heat will be very successful because the mated parts are both stainless steel) - Large hose clamp tightened around my rubber gripper ring and hammering on the hose clamp screw. I really thought this was the genius idea that would finally work. Nothing budged, even with heavy pounding. But the hose clamp does the best job of pressing my rubber gripper onto the donut and had no slippage. Is there anything I'm missing? Has anyone else had this hard a time getting the donut off, or found anything else that worked? The Edson radial drive bolts are also seized, but I have some more things to try there still, and as last resort it can be cut off and order a new one ($500). If I can get the rudder out I might also consider changing the stuffing box, because that is also seized (looks original and probably hasn't been adjusted in 5 years). -Patrick 1984 C&C Landfall 38 Violet Hour, Seattle, WA
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