Tim,

Any preventitive measures others can take?


On Fri, Jan 11, 2013 at 8:59 AM, Tim Goodyear <timg...@gmail.com> wrote:

> The cause of the cracks was wet core just outboard / above the solid glass
> at the turn of the bilge (right by the mast step).  There was a void
> between the mast step assembly (glass) and the hull proper that allowed
> water to sit for a while (29 years?) against the inner laminate...  I now
> have full confidence in the hull integrity (having replaced most of it over
> the last two years), but am many dollars lighter.  The temptation of a new
> boat is growing.
>
> Tim
> Mojito
> 1984 C&C 35-3
> Branford, CT
>
>
> On Sun, Dec 16, 2012 at 8:50 PM, Dennis C. <capt...@yahoo.com> wrote:
>
>> Tim,
>>
>> My boat is a lot older than yours but if it's any indication, their layup
>> schedules weren't very good.  I've re-tabbed most of the bulkhead/hull
>> joints in Touche's forward section.  A few were detached or broken but most
>> were just bad practice.
>>
>> When I had the boat hauled about 5 years ago for a barrier coat, I could
>> see cosmetic cracks in the matte once the gelcoat was removed from the
>> underbody.  These cracks aligned with the bulkheads.  The bulkhead tabs had
>> no fillets.  They were all 90 degree joints.  This created stress points at
>> the joints which manifested themselves as the cosmetic cracks on the
>> outside of the hull.
>>
>> I have been re-tabbing all the bulkheads with filleted joints.  I ground
>> out the old tabbing, created fillets and re-tabbed with 4 inch biaxial
>> tape.  To create the fillets, I put thickened epoxy in the joint and
>> smoothed it with the back of a plastic spoon.  This creates a nice radius
>> for the fillet.  The filleted joints spread the load.  This is particularly
>> important in the forward section of the boat as that's where the boat
>> pounds into waves.
>>
>> Dennis C.
>> Touche' 35-1 #83
>> Mandeville, LA
>>
>>
>>   ------------------------------
>> *From:* Tim Goodyear <timg...@gmail.com>
>> *To:* "cnc-list@cnc-list.com" <cnc-list@cnc-list.com>
>> *Sent:* Sunday, December 16, 2012 4:29 PM
>> *Subject:* Re: Stus-List Keel stub cracks
>>
>> There is some tabbing in the bilge sump between floors and hull that has
>> become detached.  I'll have that ground off and reattached and will add
>> glass on the outside and fair.  Does anyone have access to any of the
>> original layup schedules in that area?  I have copies of all the drawings
>> that were available, but none were that specific on construction methods.
>>
>> Thanks,
>>
>> Tim
>> Mojito
>> C&C 35-3 1984
>> Branford, CT
>>
>>
>> On Sun, Dec 2, 2012 at 7:34 PM, Graham Collins <
>> cnclistforw...@hotmail.com> wrote:
>>
>> Hi Tim
>> I'd pull the cabin sole and see if the floor grid is still well attached
>> to the hull at the turn of the bilge, I'm guessing on the port side it is
>> not.
>>
>> Graham Collins
>> Secret Plans
>> C&C 35-III #11
>>
>>
>> Tim Goodyear wrote:
>>
>> Hello all 35-3 owners - I'm looking for some advice, especially from
>> those who have re-habbed their keels on this model...
>> I was checking on Mojito this morning, and noticed beads of moisture in
>> two areas; a spot at the top of the keel trailing edge and an 8" hairline
>> crack on the port side at hull / keel stub (almost exactly where the mast
>> step is internally).  Would this have been enough for you to go ahead with
>> major keel surgery?
>> Rear of keel
>> I've been trying to resolve this for a while; two separate boat yards
>> have had a go at if, and the area is now solid fiberglass / epoxy, but
>> still a tiny crack / area of moisture. There was water in the bilge just
>> aft of the rear keel bolt (I removed the floorboards and sponged the area
>> dry).  Water would not normally stay in that area, but the boat is tilted
>> back a little on the stands.  I have not had the keel bolts torqued in 7
>> years (since I bought Mojito).
>> Mast Step area
>> This is the first year I've noticed moisture in that area; there have
>> been hairline cracks in the antifouling before.  The mast is stepped and I
>> can't access that area through the mast step, which appears sound.
>> Thanks,
>> Tim
>> Mojito
>> 1984 C&C 35-3
>> Branford, CT
>>
>>
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