[Public-list] Pintal and Gudgeon

[Mike Lehman]

Before drilling out the existing pin, you may want to try to un-screw it. It 
is actually a bronze bolt with the head removed. If it is in bad shape it 
will probably crumble from the force, but it is worth a try. If it 
disentegrates, make it flush and center-puch it and drill it out as close as 
possible to the ceter of the old pin, then tap and put in a new bolt/pin. If 
that is beyond your skill, it is a good, small job, for a machine shop. 
Never, never try to use an ez-out (from experience).

I cut 2 washers out of thin teflon and placed them between the shoe and the 
rudder. I am not sure it makes a difference, but it makes me feel better, 
and the late Bruce Rankin (the father of engineering for the A30 fleet) 
thought that was terrrific idea (making me feel even better).



Mike Lehman
~~~_/)_/)~~_/)~~~




----Original Message Follows----
From: "Matthew Morey" <mwmorey at hotmail.com>
Reply-To: Alberg 30 Public List -- open to all <public-list at alberg30.org>
To: public-list at alberg30.org
Subject: [Public-list] Pintal and Gudgeon
Date: Thu, 11 May 2006 14:36:31 -0700

Hi.  My name's Matthew.  My sweetie's name's Dawn.  We're apt to be jotting 
down several questions here in the next few days.

My boat's Chance, hull four hundred and something.  She's a beauty.  We have 
one of the rare live-aboard slips in Sausalito and sail our home in and 
around the bay frequently.

She was pulled out of the water Tues.  We got the rudder off yesterday 
because of excessive play at the base.  The pin had about pencil diameter 
and far more red than yellow.  The gudgeon had about a nickel’s diameter.  
(Micrometer in pocket to run down and measure properly in a moment.)

My plan: have machine shop drill out a hole at the base of the pintal.  Make 
corresponding pin to work up into hole.  Tap and die the two.  Use 5200 or 
lock-tight red or some combination of the two to secure the new pin in the 
pintal.  New pin will correspond roughly to the diameter of the hole in the 
gudgeon.  For gudgeon perhaps get inset of Teflon (?) or bronze.

Concerns:
(1)	The pole that runs the fore-edge of the rudder, does it continue from 
the base to the prop inset?
(2)	Is lock tight red water proof at all?
(3)	Was there something other than wear and electrolysis to justify the size 
discrepancy of the pin with the space in the gudgeon (e.g.,  a bearing, an 
insert, etc.)?
(4)	Is Teflon a good idea for an  inset for the gudgeon?
(5)	Is there a far easier way to deal with this than my rather involved 
plan?
(6)	Is my plan foolish and ineffective?

Please let me know anything you can to help out.  And if the answer to five 
is yes, please say so nicely…  Thx.

Matthew

INTO my heart on air that kills
  From yon far country blows:
What are those blue remembered hills,
  What spires, what farms are those?

That is the land of lost content,         5
  I see it shining plain,
The happy highways where I went
  And cannot come again.

A. E. Housman (1859–1936).  A Shropshire Lad.  1896.




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