>> …the same grease as for the max-prop. << >> Max Prop recommends Lubriplate. <<
I use the Lubriplate 130 AA on Calypso’s (and two prior boat’s) rudder bearings (bronze/SS), Edison steering gear (cable, chain, sheave bearings etc.), and the MAX Prop. My only complaint is it can be messy to handle. It has performed well in a salt water environment. I do not have specific info on the Lubriplate 130 AA’s compatibility with plastics but Delrin should be OK. I have not observed any solvent/volatile type behavior from the Lubriplate 130 AA. I have successfully used Delrin in many applications where it is exposed to harsh solvents. 130 AA will separate a bit when stored and the lower viscosity lubricant component (like engine oil) will leak all over whatever it is stored in. (Delrin does have some interesting reactions when machining large pieces and will cold flow under pressure.) If you are nervous about the 130 AA I suspect a specialty lubricant especially formulated for mixed plastics in salt water may be worth looking for. A lubricant that does not wash out quickly and will retain a minimum of salt crystals would be the ticket. I bet the guys that build carbon fiber rudder stocks have a recommendation. Martin Calypso 1970 C&C 43 Seattle From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Chuck S Sent: Thursday, March 21, 2013 3:38 PM To: cnc-list@cnc-list.com Subject: Re: Stus-List 37+ rudder bearings? You'll have to drop the rudder in order to drill through the rudder shaft and bearings. The rudder shaft seems too thin to get enough threads tapped in? Also, the zerk fittings might go bad over time, so I glassed in SS bushngs to the fiberglass shaft wall, and screw the zerks into those. Parts were ordered from McMaster-Carr where I selected the grease. You could just buildup the fiberglass layers? MaxProp recommends Lubriplate. I didn't know if that would attack Delrin, so I selected a grease more environmentally friendly and rated for plastics. Chuck Resolute 1990 C&C 34R Atlantic City, NJ ________________________________ From: "Josh Muckley" <muckl...@gmail.com<mailto:muckl...@gmail.com>> To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com> Sent: Wednesday, March 20, 2013 4:21:27 AM Subject: Re: Stus-List 37+ rudder bearings? I was thinking about some Jefa self aligning rudder bearings. Overkill? Not sure they'll even fit without major work. Grease fittings....hmm...just drill a hole and tap it for a zirc? I like it! I'm thinking of using the same grease as for the max-prop. Josh Muckley --
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