Re: M_Boats: Bottom Paint On Montgomery 15 - centerboard picture

10 May 2013

      George,

I believe the M17, M23 and S17 use a stop pin to keep the CB from lowering beyond it desired depth.  As for the M15, the board is light enough, that the stop knot on the pendant is used to adjust the depth of the CB.  

Skip

-----Original Message-----
From: George Iemmolo <griemmolo2@gmail.com>
To: 'For and about Montgomery Sailboats' <montgomery_boats@mailman.xmission.com>
Sent: Fri, May 10, 2013 7:49 pm
Subject: Re: M_Boats: Bottom Paint On Montgomery 15 - centerboard picture

    Dave

How does the CB system know not to drop the center board beyond the proper
distance to keep the non foiled edge in the trunk?

George 

-----Original Message-----
From: montgomery_boats-bounces+griemmolo2=gmail.com@mailman.xmission.com
[mailto:montgomery_boats-bounces+griemmolo2=gmail.com@mailman.xmission.com]
On Behalf Of W David Scobie
Sent: Thursday, May 09, 2013 9:42 AM
To: For and about Montgomery Sailboats
Subject: Re: M_Boats: Bottom Paint On Montgomery 15 - centerboard picture

looks like the centerboard picture didn't attach ... now for a second
attempt.

:: Dave Scobie

--- On Thu, 5/9/13, W David Scobie <wdscobie@yahoo.com> wrote:
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Scott:
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as already discussed the pin goes through the
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centerboard.  i've attached a picture that shows the
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'parts' of an M15, M17, M23 and S17 centerboard (all have
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the same essential design just differing sizes based on year
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of build).
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...

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:: Dave Scobie
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--- On Wed, 5/8/13, Scott Larson <salarson2@comcast.net>
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wrote:
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I am in the process of getting
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my  newly acquired Montgomery 15 ready for
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bottom paint.  Since it will be sitting at a mooring,
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I
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think it will be
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prudent to prep it with an epoxy barrier paint and
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then
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paint with my bottom
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paint of choice.  I have found a product that seems
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to
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get the hull nice and
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clean.  It is this highly caustic stuff, but tends to
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get all the grub and
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stains off the hull.  I will be using a new product
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by
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West Marine (made by
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Petit).  They claim you should prepare the hull using
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this stuff that costs
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over 30.00 a quart to remove residual mold release
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agent.  I suppose it is
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possible that there may still be some mold release
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agent on
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a 30 YO hull.
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But even if there is,  I have read that it can be
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removed with warm water
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and a sponge.  Does anyone have any feedback on this
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matter?
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As for painting the bottom with barrier coat, is there
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any
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reason why I
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cannot just paint over the small scratches with the
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barrier
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coat without
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filling them?  Also, there are some areas with small
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blisters, about 1-2 mm.
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What should I do with those?
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Also, a few of the scratches seem to reveal green
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gelcoat
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beneath the white
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gelcoat.  Is it possible that the boat was originally
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given a coat of green
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gelcoat beneath the white gelcoat?  This might
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actually
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make sense if the
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entire mold were sprayed with white up to the
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sheerstrake
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first, then had
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the entire inside of the mold sprayed up to the
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sheerline
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with green gelcoat
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to get the green stripe.  The other possibility is
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that
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the hull was
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originally green and it was painted or given a new
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gelcoat
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up to the
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sheerstrake.  If that were the case, whoever did it,
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did a pretty good job
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of it.
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As for the centerboard, the pin is covered with what
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appears
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to be a
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silicone marine sealant on each side.  Should I just
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leave that alone and
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hope for the best?  Does the centerboard have a hook
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at
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the end where it
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attaches to the pin?  In that case held in by the
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force
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of gravity?  From
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the pictures of John Harris' repair, it appears that
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he
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re-set the pin
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before putting the board back in.
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Any insight would be great!
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Scott Larson
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Re: M_Boats: Bottom Paint On Montgomery 15 - centerboard picture

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