[Rhodes22-list] "shrinking" rudder outhaul brake stud

[Mike Cheung]

Will try to get pics later today if I don't otherwise resolve the issue,
Rummy.  Yeah, I agree if the  threads in the UHMWPE  (Ultra High Molecular
Weight Poly-Ethylene) are stripped either a larger stud (problematic because
the brake/lock knob has a female threaded insert sized for the original
stud) or perhaps a "helicoil" type repair (probably the way I'd go given a
choice) will be required.  My initial inspection gives me hope that the
threads in the UHMWPE piece are intact and I simply turned the stud in those
threads, thus shortening the exposed portion which the brake/lock knob
engages.  

I have an email in to the Commodore asking his advice too.  It's possible
that it only looks like the stud is threaded into the UHMWPE block and is
either double nutted on the backside or perhaps is a carriage bolt or
hexbolt; although my overtightening of the brake/lock knob could still have
run the stud in if it made decent contact with the UHMWPE.  In which case,
the three nut repair scheme might still work.  Unfortunately with the boat
in the water, it's hard to even try to get a look from the other side to see
if the back of this assembly can be glimpsed; I'll bring an inspection
mirror today if I can find one and see if I can get a peek.


R22RumRunner wrote:
> 
> Mike,
> Pictures man, we need pictures. There is no good way to repair starboard
> or 
>  UHMWPE which is probably what you have. Drill larger hole and use a tap
> to 
>  install threads and new larger bolt.
>  
> Rummy
>  
>  
> In a message dated 5/28/2012 5:18:18 P.M. Eastern Daylight Time,  
> hmcheung57 at gmail.com writes:
> 
> 
> Searched the archives, but didn't find any info on this  issue.  Then 
> again, I
> am not sure I thought of the right keywords to  search on either.  The
> stud
> (looks to be 1/4-20) that is part of the  rudder outhaul line (the red
> line
> on my boat) brake or lock has been  shrinking.  It's to the point that
> when 
> I
> loosen the rudder lock to  raise the rudder the knob often comes off and 
> it's
> the devil's own time to  get it back on.  I believe what has happened is 
> that
> the stud is  threaded directly into the "starboard" block that sits
> between
> the two  rudder "cheeks" and that as I've tightened, perhaps
> overtightened,
> the  rudder lock I've turned the stud and run it further into the block.   
> I'm
> going to head out to s/v Muireann tomorrow to attempt a repair, but  
> wondered
> if anyone else has had this happen?
> 
> The fix I'm thinking of  trying is to use three 1/4-20 nuts; running one
> all
> the way down to the  block to serve as a marker or index and the other two 
> to
> be turned  "against" each other on the stud so I can use the inward one to
> back the  stud out of the block approximately 1/4 inch or so to give the 
> knob
> more  "purchase" on the stud.  Any feedback on my proposed repair  are
> welcome.
> 
> Thanks and happy sailing.
> 
> 
> 
> -----
> Mike  Cheung
> s/v Muireann 1993/2008 Rhodes 22
> -- 
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-----
Mike Cheung
s/v Muireann 1993/2008 Rhodes 22
-- 
View this message in context: http://old.nabble.com/%22shrinking%22-rudder-outhaul-brake-stud-tp33921683p33924310.html
Sent from the Rhodes 22 mailing list archive at Nabble.com.