5 messages2012-02-23 22:38 UTCthrough 2012-02-27 17:07 UTC
Re: [Cal_Boats] Hull to Deck Joint Leaks [1 Attachment]
Rodney G. Johnson2012-02-23 22:38 UTC
Charlie, this is an old thread, (well ,not THAT old!) but anyway, in the
powerpoint you mentioned that the CAL 40 hull-deck joint was different.
We need to add that the CAL 21 hull-deck joint is also different..from
what I recall, the CAL 21 had a typical "Shoe Box" Hull/deck joint, in
other words, the deck fit over the gunwale just like the lid of a shoe
box fits over the bottom of the box. Some kind of sealant/resin/putty was
injected between and then a continuous aluminum extrusion with a
rubber/vinyl insert was screwed over the edge. As best as I can recall,
screws were driven through the aluminum before the rubber/vinyl insert
was.....well, inserted. These screws went into a wooden molding placed on
the inside of the gunwale. We never had a leak through the joint that we
noticed. This wood molding made a great spot to fasten various brackets
and eyes for hanging gear inside the cabin. Across the transom there was
no rub-rail, just an aluminum trim strip that really didn't adequately
seal the hull-deck joint on it's own, it just covered the top of the
seam. The edge of the deck appeared to be screwed down to the hull with
the screws apparently threaded into a plywood strip across the top of the
transom. We never experienced any known problems there, but some owners
did have to replace the plywood after it rotted out.
The other weird detail on the 21 was that it seems that the backstay
chainplate was held in place with wood screws? Not bolts! At least we
never did find any evidence of fasteners from the inside of the
transom....... never dared unscrew any of the screws visible on the
outside of the chainplate. No signs of loosening in the 28 years we owned
our boat...so, who knows? Perhaps blind nuts were used inside, but if so,
they weren't visible from inside.
Rod Johnson, "SUNBIRD"
1979 O'DAY DS II #10201
former co-owner of "NODROG"
1970 CAL 21 #285
53 Year Old Mom Looks 33
The Stunning Results of Her Wrinkle Trick Has Botox Doctors Worried
http://thirdpartyoffers.juno.com/TGL3141/4f46c00d1c6bb19df9dcst04duc
Re: [Cal_Boats] Hull to Deck Joint Leaks
Michael Kennedy2012-02-24 02:22 UTC
The Cal 40 hull-deck joint was horizontal and had a step to allow the deck to lie in the flange of the hull. Bolts were drilled and fastened through the joint and it was sealed with a compound Similar to that which seals winches on the deck. The toe rail was part of the joint and the bolts went through it. I have photos on my web site of replacing the toe rail and sealing the joint. It is a big job but Wendy Siegel did one side and did it in the slip.
MIke Kennedy
Formerly Conquest hull # 96.
On Feb 23, 2012, at 2:38 PM, Rodney G. Johnson wrote:
>
>
> Charlie, this is an old thread, (well ,not THAT old!) but anyway, in the powerpoint you mentioned that the CAL 40 hull-deck joint was different. We need to add that the CAL 21 hull-deck joint is also different..from what I recall, the CAL 21 had a typical "Shoe Box" Hull/deck joint, in other words, the deck fit over the gunwale just like the lid of a shoe box fits over the bottom of the box. Some kind of sealant/resin/putty was injected between and then a continuous aluminum extrusion with a rubber/vinyl insert was screwed over the edge. As best as I can recall, screws were driven through the aluminum before the rubber/vinyl insert was.....well, inserted. These screws went into a wooden molding placed on the inside of the gunwale. We never had a leak through the joint that we noticed. This wood molding made a great spot to fasten various brackets and eyes for hanging gear inside the cabin. Across the transom there was no rub-rail, just an aluminum trim strip that really didn't adequately seal the hull-deck joint on it's own, it just covered the top of the seam. The edge of the deck appeared to be screwed down to the hull with the screws apparently threaded into a plywood strip across the top of the transom. We never experienced any known problems there, but some owners did have to replace the plywood after it rotted out.
> The other weird detail on the 21 was that it seems that the backstay chainplate was held in place with wood screws? Not bolts! At least we never did find any evidence of fasteners from the inside of the transom....... never dared unscrew any of the screws visible on the outside of the chainplate. No signs of loosening in the 28 years we owned our boat...so, who knows? Perhaps blind nuts were used inside, but if so, they weren't visible from inside.
>
> Rod Johnson, "SUNBIRD"
> 1979 O'DAY DS II #10201
> former co-owner of "NODROG"
> 1970 CAL 21 #285
>
>
>
>
>
> ____________________________________________________________
> 53 Year Old Mom Looks 33
> The Stunning Results of Her Wrinkle Trick Has Botox Doctors Worried
> consumerproducts.com
>
>
RE: [Cal_Boats] Hull to Deck Joint Leaks
Husar, Charlie [USA] (ASE)2012-02-24 02:39 UTC
Rod, to quote from a famous movie, that whole arrangement sounds like “a goddamn marvel of modern science”.
I think I will take my next boat joining inspiration from the lid on a tub of sour cream.
Cheers
Charlie
From: Ca… [at] yahoogroups.com [mailto:Ca… [at] yahoogroups.com] On Behalf Of Rodney G. Johnson
Sent: Thursday, February 23, 2012 5:38 PM
To: Ca… [at] yahoogroups.com
Subject: Re: [Cal_Boats] Hull to Deck Joint Leaks
Charlie, this is an old thread, (well ,not THAT old!) but anyway, in the powerpoint you mentioned that the CAL 40 hull-deck joint was different. We need to add that the CAL 21 hull-deck joint is also different..from what I recall, the CAL 21 had a typical "Shoe Box" Hull/deck joint, in other words, the deck fit over the gunwale just like the lid of a shoe box fits over the bottom of the box. Some kind of sealant/resin/putty was injected between and then a continuous aluminum extrusion with a rubber/vinyl insert was screwed over the edge. As best as I can recall, screws were driven through the aluminum before the rubber/vinyl insert was.....well, inserted. These screws went into a wooden molding placed on the inside of the gunwale. We never had a leak through the joint that we noticed. This wood molding made a great spot to fasten various brackets and eyes for hanging gear inside the cabin. Across the transom there was no rub-rail, just an aluminum trim strip that really didn't adequately seal the hull-deck joint on it's own, it just covered the top of the seam. The edge of the deck appeared to be screwed down to the hull with the screws apparently threaded into a plywood strip across the top of the transom. We never experienced any known problems there, but some owners did have to replace the plywood after it rotted out.
The other weird detail on the 21 was that it seems that the backstay chainplate was held in place with wood screws? Not bolts! At least we never did find any evidence of fasteners from the inside of the transom....... never dared unscrew any of the screws visible on the outside of the chainplate. No signs of loosening in the 28 years we owned our boat...so, who knows? Perhaps blind nuts were used inside, but if so, they weren't visible from inside.
Rod Johnson, "SUNBIRD"
1979 O'DAY DS II #10201
former co-owner of "NODROG"
1970 CAL 21 #285
53 Year Old Mom Looks 33
The Stunning Results of Her Wrinkle Trick Has Botox Doctors Worried
<http://thirdpartyoffers.juno.com/TGL3142/4f46c00d1c6bb19df9dcst04duc>consumerproducts.com<http://thirdpartyoffers.juno.com/TGL3142/4f46c00d1c6bb19df9dcst04duc>
Cal 27 Mark III hatch cover
David Field2012-02-25 02:55 UTC
Does anyone have an source for replacing the hatch cover on a Cal 27 Mark III... or a way to repair it?
David
Cal 27 Mark III
Latitude Changer
Re: [Cal_Boats] Cal 27 Mark III hatch cover
Chris Campbell2012-02-27 17:07 UTC
On 2/24/2012 9:55 PM, David Field wrote:
> Does anyone have an source for replacing the hatch cover on a Cal 27
> Mark III... or a way to repair it?
I'm guessing, from other replies, that this is a fiberglass hatch
cover. If so, it ought to be easy to repair it using epoxy & fiberglass
cloth. West System (Gougeon Brothers) offer really good publications on
repairs and construction issues, and I think they're all available
online. Epoxy bonds well to old polyester-resin fiberglass structures
when the surfaces are prepared properly. The Gougeon folks are really
devoted to engineering so their recommendations are trustworthy.
My Cal 20's original fiberglass hatch cover is surprisingly strong. I
say it's surprising because it's not supported all the way around. The
first owner added some little teak blocks under the forward edge to
raise it a little, giving some ventilation through the boat. I don't
get enough green water on deck to worry about that, but having
ventilation in the summer is a big plus. In any event, I tend to stand
on the cover when securing my sail cover, and it's interesting that it
doesn't complain about my 200 (plus a little) pounds.
Chris Campbell