[Public-List] Rudder annomalies and repair

[George Dinwiddie]

Richard,

I'm having a hard time picturing much of this.  If you'd like to send me 
the jpegs, I could post them on the website.

Do you gudgeons look like the ones on 
http://alberg30.org/maintenance/Steering/Gudgeons/ ?

As for the pin, if you're lucky, you can just install a new one made 
from a bolt.  See http://alberg30.org/maintenance/Steering/RudderShoe/
It sounds like the old one has just corroded away.  And has worn the 
rudder shoe in the process.  If a 1/2" bolt will screw into the bottom 
of the rudder post, I would be tempted to put a bushing in the shoe to 
bring it back to 1/2"  Otherwise I would go up in size.

As for the rudder, probably just some fairing compound will do.  It's 
hard to judge without seeing it, but there should be internal rods that 
are taking the brunt of the attachment.

  - 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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