[Public-List] Rudder annomalies and repair

[George Dinwiddie]

Richard,

I posted your photos on 
http://alberg30.org/maintenance/Steering/Rudder-SunSpur/ along with the 
contents of this email, and some commentary.

I'd like it if others would take a look and offer their opinions.

  - George

Richard Hansen wrote:
> Requesting some advice and help on repairing the rudder on Sun Spur, hull
> #3067235.  I can share some jpegs but thought I'd inquire with words first.
> 
> 
> I've read many of the articles and email archive but not all.  Presuming my
> rudder was originally or subsequently repaired differently than the 1 x
> 63"rudder stock drawing dated 22 July 69 offered on the site.  I am unable
> to line up the drawing or envision 63" of rod running through my rudder.
> Sun Spur's rudder has a 1" rod coming out the hull but ends just below an
> imaginary prop shaft line, much like the jpegs of #152 on the website.
> Rudder appears in good shape, except for the attachment to this 1" rod.
> While solidly attached, the connection is not smooth at the leading edges
> where glass meets rod.  I'm wondering if I should fill in with marine-tex
> putty or overlap some fglass/resin staps around the rod and smooth towards
> the trailing edge...to better "encapsulate" the rod.
> 
> The gudgeon/ appears to be one piece cast and in good shape.  The top
> "pintle" , if that is what it was, is corroded to some unreconizable nugget
> that I extracted from the bottom rudder gudgeon.  The "gudgeon" attached to
> the rudder also appears one piece cast and has an identical sized aperture
> to the hull gudgeon.  So, two questions here.  How to repair, pin or rod,
> and how to manipulate the two solid cast gudgeons to accept the repair?
> 
> The rudder connection at the show can best be described as a pedestal (the
> pin) between an upper and a lower mortar (the shoe and rudder base)! There
> is the shoe, the rudder's 1" x 6" base cylinder, and a free floating pin
> between the two.  The shoe's aperture is 15mm wide and 9/10” or 24mm deep.
> The pin is a 7/16 x 1 5/8"  figure eight shaped pin, floating free inside
> the well/hole of the shoe and the  6”x 30mm cylindrical (brass?) part at the
> bottom of the rudder (aperture is ½” or 13mm wide and ¾” or 19mm deep).
> There is a very shallow threading (4) on rudder end of this bronze pin.
> There is some elliptical wearing of the apertures of both the shoe and the
> cylinder.
> 
> So, to summarize the question on repairs.
> Rudder:  How and with what should I better encapsulate (fairing) the upper
> and lower rod assemblies and the fglass rudder?  Putty, epoxy, or fglass
> fabric straps and resin? Or combination?
> Gudgeon:  How and with what might I align the gudgeon and pintle-less
> pintle?  With a pin or rod?  How long?  Secure with what?
> Shoe and hull:  •Fill previous hull holes with putty/epoxy before retaping?
> Retap keel and secure with bigger or same sized bronze screws?  What to do
> about threadless rudder rod/cylinder at bottom?

-- 
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   When I remember bygone days                         George Dinwiddie
   I think how evening follows morn;            gdinwiddie at alberg30.org
   So many I loved were not yet dead,           http://www.Alberg30.org
   So many I love were not yet born.                          also see:
                'The Middle' by Ogden Nash     http://idiacomputing.com
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