[Rhodes22-list] Re: HELP!! CB trunk has delaminated!

[Lou Rosenberg]

>Roger,

   I want to take pics of my board which is now in my basement after 
remeasuring its width. I will try to post them tonight.  Thanks for 
all your help!  The background on cement tech is invaluable always !
   What I plan to do right now is to take ALL the caked paint off the 
board all the way down to the glass and repaint.  After that 
procedure I will mount my new sheaves on the new SS mounts I am 
making for them then take the board with out the cap to the boat and 
see how it fits.   I would rather REBUILD another slightly narrower, 
more dense board than do the rebuild on the trunk.  I now realize 
that a sawsall on just one side of the trunk might give me enough 
room and then all I have to do is re seal and re glass the trunk but 
that is still alot of work compared to doing just the board.
   My initial measurements on the trunk told me that I only needed 
about 1/16" more clearance total to make the board move freely.
  I have also thought about adding a emergency release on the top of 
the cap . Basically a spring loaded  rod attached with a rubber piece 
that contacted the back of the board that would help it release if 
it got stuck during the season. What do you think of that idea?

more info later,
Lou


>GBI did not build the early Rhodes 22's in-house.  Instead, the construction
>was out-sourced to a number of contract boatyards.  The quality of
>construction at some of these boatyards was not of a very high standard,
>which is why Stan eventually started building his own boats in-house.  This
>is also why GBI will not recycle & warranty Rhodes 22's from this era.   My
>fearless hypothesis regarding the problem with your centerboard trunk is
>that the FRP laminate was too thin &/or of poor quality.  Water has leaked
>into the cement thru this questionable FRP laminate.  Over time, this water
>has reacted with the residual Portlant cement & expanded to give you the
>bulge we observe today.
>
>My initial reaction is that you are going to have to grind away the bad FRP
>laminate in the centerboard well + some cement.  Then, you are going to have
>to rebuild the walls of the centerboard well with new FRP laminate.  Ugh!
>
>Let me think about this problem a little more?
>
>Roger Pihlaja
>S/V Dynamic Equilbrium
>
>
>----- Original Message -----
>From: <steadilsr at verizon.net>
>To: "The Rhodes 22 mail list" <rhodes22-list at rhodes22.org>
>Sent: Sunday, December 05, 2004 9:11 PM
>Subject: [Rhodes22-list] Re: HELP!! CB trunk has delaminated!
>
>
>>  Roger, Todd , Peter T and all Rhodies:
>>   Need advice on pics being posted.
>>
>>   After pulling out the stuck CB last week I decided to use my dremel tool
>>  attached to a flex shaft & 120grit sand minidrum to shave about 1/16 " of
>the
>>  fibreglass away which is bulging out into the upper trunk.
>>  During the wk I carefully measured the CB thickness using two  straight
>edges
>>  for references I meas the distance btw the edges along the length of the
>>  board.
>>   i then cut strips of plywood conforming to those depths as test sticks.
>I
>>  used those depth sticks today to measure how much glass i was trimming
>away
>>  with the dremel.
>>   Its diff to photograph but my trunk  as it has 2 apparent sections of
>depth.
>>  The upper trunk where the lip is sealed with the neoprene and the lower
>>  section which opens to the sea.  My lower section is not bulging and there
>is
>>  plenty of room, but the upper is too tight.
>>   After sanding the head of the board down I was able to drop the depth
>stick
>>  in and moved on to the middle of the board.  The section to the rear of my
>>  pivot was tighter and soon I foung my wall had cracked and the glass
>crumbled
>>  away revealing the dry cement.  I know how to patch the hole with epoxy,
>but
>>  now I cannot sand the walls with out risking similar problems.
>>   I am posting my pics for reference and will have more next week.
>>   Any advice welcomed.
>>
>>   note: Even if a surveyor had told me not to buy this boat due to a stuck
>cb,
>>   i think i would have gone agains his advice due to the condition of the
>hull
>>  and other parts.  I am still convinced my boat will sail this summer!
>>  Lou
>>
>>
>
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