rudder stock/tube/shaft

A friend has acquired a new-to-him sailboat. He recently pulled the rudder to find that corrosion has eaten through the rudder shaft/tube, creating some perforations and a substantial groove just above the rudder body, where the tube/shaft enters the hull. He is thinking about grinding qway enough of the rudder body to allow a competant welder to repair the damage. Anyone see a problem with that or have other recommendations? Reggie WIN up to $10,000 in cash or prizes � enter the Microsoft Office Live Sweepstakes http://clk.atdmt.com/MRT/go/aub0050001581mrt/direct/01/

This may be okay for a real short term fix, sailing in calm waters where you can get help, immediately. The post is most likely stainless, and from my experience, ss gets hard in the heat effected zone, around the weld hoop. Stainless hard = stainless brittle. If this is acceptable, risk wise, then the stainless should be chemically passivated, hopefully to reduce future corrosion. I've also noticed that once stainless begins the corrosion process, all of it is bad... not just the places where the material has disappeared. This a little like putting a band aid on a severed arm... may provide some temporary relief, but probably will not save a life. If cash is a problem, then it is possible to split the rudder skin, and make a new shaft using your own labor. or, depending on the boat, Foss Foam may have a "stock" solution for @ $1,000 - $1,500.. Another wild solution would be to sleeve the post (interior)... but the correct solution is to replace with a new one. We had a rudder with far fewer indications of failure than the one you are describing, and began the Cal 40 rudder project. We co'oped 25 rudders being built, at a great discount. dEmO From: Ca… [at] yahoogroups.com [mailto:Ca… [at] yahoogroups.com] On Behalf Of r good Sent: Thursday, December 14, 2006 2:16 PM To: ca… [at] list.sailnet.net; Ca… [at] yahoogroups.com; as… [at] rmlh.com Subject: [Cal_Boats] rudder stock/tube/shaft A friend has acquired a new-to-him sailboat. He recently pulled the rudder to find that corrosion has eaten through the rudder shaft/tube, creating some perforations and a substantial groove just above the rudder body, where the tube/shaft enters the hull. He is thinking about grinding qway enough of the rudder body to allow a competant welder to repair the damage. Anyone see a problem with that or have other recommendations? Reggie WIN up to $10,000 in cash or prizes - enter the Microsoft Office Live Sweepstakes http://clk.atdmt.com/MRT/go/aub0050001581mrt/direct/01/ Yahoo! Groups Links

thanks, Tim. and Mr. lentil, also! Reggie >From: <ti… [at] ch2m.com> >Reply-To: Ca… [at] yahoogroups.com >To: <Ca… [at] yahoogroups.com> >Subject: RE: [Cal_Boats] rudder stock/tube/shaft >Date: Thu, 14 Dec 2006 16:05:22 -0700 > >This may be okay for a real short term fix, sailing in calm waters where >you can get help, immediately. > >The post is most likely stainless, and from my experience, ss gets hard >in the heat effected zone, around the weld hoop. Stainless hard = >stainless brittle. If this is acceptable, risk wise, then the stainless >should be chemically passivated, hopefully to reduce future corrosion. >I've also noticed that once stainless begins the corrosion process, all >of it is bad... not just the places where the material has disappeared. > >This a little like putting a band aid on a severed arm... may provide >some temporary relief, but probably will not save a life. > >If cash is a problem, then it is possible to split the rudder skin, and >make a new shaft using your own labor. or, depending on the boat, Foss >Foam may have a "stock" solution for @ $1,000 - $1,500.. > >Another wild solution would be to sleeve the post (interior)... but the >correct solution is to replace with a new one. > >We had a rudder with far fewer indications of failure than the one you >are describing, and began the Cal 40 rudder project. We co'oped 25 >rudders being built, at a great discount. > >dEmO > >-----Original Message----- >From: Ca… [at] yahoogroups.com [mailto:Ca… [at] yahoogroups.com] On >Behalf Of r good >Sent: Thursday, December 14, 2006 2:16 PM >To: ca… [at] list.sailnet.net; Ca… [at] yahoogroups.com; as… [at] rmlh.com >Subject: [Cal_Boats] rudder stock/tube/shaft > >A friend has acquired a new-to-him sailboat. He recently pulled the >rudder >to find that corrosion has eaten through the rudder shaft/tube, creating >some perforations and a substantial groove just above the rudder body, >where >the tube/shaft enters the hull. He is thinking about grinding qway >enough >of the rudder body to allow a competant welder to repair the damage. >Anyone >see a problem with that or have other recommendations? >Reggie > >_________________________________________________________________ >WIN up to $10,000 in cash or prizes - enter the Microsoft Office Live >Sweepstakes http://clk.atdmt.com/MRT/go/aub0050001581mrt/direct/01/ > > > > >Yahoo! Groups Links > > > > > ><< att5091c.jpg >> WIN up to $10,000 in cash or prizes � enter the Microsoft Office Live Sweepstakes http://clk.atdmt.com/MRT/go/aub0050001581mrt/direct/01/