Re: Stus-List mast collar straps

2016-08-03 Thread Stevan Plavsa via CnC-List
I used ratcheting tie downs to pull the deck down towards the mast step -
and an OC6 crew standing on deck around the mast.
This was when I forgot to install the straps one year and only noticed days
later - the deck had "lifted" or perhaps as Steve points out, the weight of
the keel had something to do with it. In my case, halyard tension seemed to
play a role so don't forget to take the tension out of your rigging.

Steve
Suhana, C&C 32
Toronto
___

This list is supported by the generous donations of our members. If you like 
what we do, please help us pay for our costs by donating. All Contributions are 
greatly appreciated!


Stus-List mast collar straps

2016-08-02 Thread Tom Alessi via CnC-List
There is another solution to adjusting the straps under the Do-It-Yourself 
section. (MAST BRACKETS) It turns the fixed staps into adjustable ones.
Looks interesting.

Tom 
S/V ANDIAMO
C&C 36, 1980
Rockaway Bch, NY
646-283-1580
tagraph...@optonline.net


___

This list is supported by the generous donations of our members. If you like 
what we do, please help us pay for our costs by donating. All Contributions are 
greatly appreciated!


Re: Stus-List mast collar straps

2016-08-02 Thread S Thomas via CnC-List
Tom, 
many C&C 36 and 38 from around that year have had similar problems. I 
have the same model and year of boat as you have, and I am relatively new to it 
as well. 

Part of what your are experiencing is just the "natural" reshaping and relaxing 
of the hull and deck in response to stress over time. When in the water, the 
weight of the keel and the load of the rig tension pushes the mast step and the 
hull surrounding the keel down relative to the rest of the boat. The mast 
straps, (which are occasionally and erroneously referred to as the partners), 
are attached to the deck and pull it down to the extent that the mast step 
moves down relative to the rest of the boat. When the boat is out of the water 
these forces are either relieved (rig tension) or reversed (keel  weight) and 
the boat will take a few days to settle in again once back in the water. These 
effects need to be taken into account before considering any remedial or 
restorative action. Jacking up the mast a little bit to get the bolts in may be 
the best solution if it is not too far. A small amount of load on the deck may 
not be a bad thing. On my boat I think it is a bit too far since the deck 
appears to be depressed around the mast collar by more than 1/2 an inch. 

I can not see anything wrong with the transverse wood and fibreglass supports 
immediately ahead of and behind the mast step box. What I have been told is 
that sometimes the space under the box was filled with more or less random bits 
of wood. fibreglass, and resin to build up a support platform, and that the 
sinking mast syndrome in that case is due to that wood rotting and probably not 
structural in any sense other than the loss of a shim under the mast. I have 
not decided what to do with mine yet, but there is a 1978 C&C 38 at our club 
which had a piece of aluminum plate cut to fit inside the step box, and it has 
worked fine for a couple of decades now. That will be my solution unless I find 
a good reason not to do it. 

I too would welcome further information or experience from others who have 
dealt with the same problem on the same or very similar boats. 

Steve Thomas
1980 C&C36 
Merritt Island, Fl

- Original Message - 
  From: Tom Alessi via CnC-List 
  To: cnc-list@cnc-list.com 
  Cc: Tom Alessi 
  Sent: Tuesday, August 02, 2016 12:30
  Subject: Stus-List mast collar straps


  Hi,
  This is my first season sailing  after a season on the hard doing repairs. 
When the yard re-stepped the mast the holes on the metal straps that bolt 
through the mast no longer align. The holes on the mast are lower by 3/8". As 
part of the rehab I had removed the mast collar. so I initially thought that I 
used too much caulking in the installation. I removed the collar and scrapped 
away all the caulking but the holes are still off. I wasn't there when the yard 
had originally took out the mast so I'm not sure if there was anything under 
the mast causing it to be slightly higher. I'm relunctant to drill a new set of 
holes.
Any advice would be appreciated.
  Thx

  Tom Alessi
  S/V ANDIAMO
  C&C 36, 1980
  Rockaway Bch, NY
  646-283-1580
  tagraph...@optonline.net

___

This list is supported by the generous donations of our members. If you like 
what we do, please help us pay for our costs by donating. All Contributions are 
greatly appreciated!


Re: Stus-List mast collar straps

2016-08-02 Thread Sébastien Lemieux via CnC-List
Hi Tom,

  a similar situation happened to us a few years ago. We solved it by attaching 
the lower hole on the stainless strap to the bottom of the mast and bringing 
them closer (1/2 inch in our case) using a home depot bought turnbuckle. It 
worked, but the approach felt wrong.

  I was under the impression that the correct way to do it would be to attach 
the straps before the mast is completely lowered (and still attached to the 
crane). Our boat's manual says: "NB: Before proceeding, be sure to attach the 
deck collar tie-down straps to the mast below deck." This note appears at the 
point where the weight of the mast is transferred from the crane to the step.

best,

--
Sébastien Lemieux
Merlot X, C&C 30-2 1988
Lake Champlain

> On Aug 2, 2016, at 12:30 , Tom Alessi via CnC-List  
> wrote:
> 
> Hi,
> This is my first season sailing  after a season on the hard doing repairs. 
> When the yard re-stepped the mast the holes on the metal straps that bolt 
> through the mast no longer align. The holes on the mast are lower by 3/8". As 
> part of the rehab I had removed the mast collar. so I initially thought that 
> I used too much caulking in the installation. I removed the collar and 
> scrapped away all the caulking but the holes are still off. I wasn't there 
> when the yard had originally took out the mast so I'm not sure if there was 
> anything under the mast causing it to be slightly higher. I'm relunctant to 
> drill a new set of holes.
>   Any advice would be appreciated.
> Thx
>  
> Tom Alessi
> S/V ANDIAMO
> C&C 36, 1980
> Rockaway Bch, NY
> 646-283-1580
> tagraph...@optonline.net 
> <20160712_165733 a.jpg>___
> 
> This list is supported by the generous donations of our members. If you like 
> what we do, please help us pay for our costs by donating. All Contributions 
> are greatly appreciated!

___

This list is supported by the generous donations of our members. If you like 
what we do, please help us pay for our costs by donating. All Contributions are 
greatly appreciated!


Re: Stus-List mast collar straps

2016-08-02 Thread Kevin Driscoll via CnC-List
Make sure all your halyards, vang, cunningham, etc are slackened if they
are led back to the cockpit. Kind of obvious, but it definitely makes a
difference. I know from experience.

On Tue, Aug 2, 2016 at 10:09 AM jhnelson via CnC-List 
wrote:

> If you have any rig tension on that would do it.
>
> Other options, assuming you haven't had any mast step work done is to
> raise the mast up a bit, put the bolts in and drop it back down. Or shim
> the mast up to the right height.
>
>
>
> Sent from my Samsung device
>
>
>  Original message 
> From: Tom Alessi via CnC-List 
> Date: 2016-08-02 1:30 PM (GMT-04:00)
> To: cnc-list@cnc-list.com
> Cc: Tom Alessi 
> Subject: Stus-List mast collar straps
>
> Hi,
> This is my first season sailing  after a season on the hard doing repairs.
> When the yard re-stepped the mast the holes on the metal straps that bolt
> through the mast no longer align. The holes on the mast are lower by 3/8".
> As part of the rehab I had removed the mast collar. so I initially thought
> that I used too much caulking in the installation. I removed the collar and
> scrapped away all the caulking but the holes are still off. I wasn't there
> when the yard had originally took out the mast so I'm not sure if there was
> anything under the mast causing it to be slightly higher. I'm relunctant to
> drill a new set of holes.
>   Any advice would be appreciated.
> Thx
>
> Tom Alessi
> S/V ANDIAMO
> C&C 36, 1980
> Rockaway Bch, NY
> 646-283-1580
> tagraph...@optonline.net
> ___
>
> This list is supported by the generous donations of our members. If you
> like what we do, please help us pay for our costs by donating. All
> Contributions are greatly appreciated!
>
___

This list is supported by the generous donations of our members. If you like 
what we do, please help us pay for our costs by donating. All Contributions are 
greatly appreciated!


Re: Stus-List mast collar straps

2016-08-02 Thread jhnelson via CnC-List


If you have any rig tension on that would do it. 
Other options, assuming you haven't had any mast step work done is to raise the 
mast up a bit, put the bolts in and drop it back down. Or shim the mast up to 
the right height.


Sent from my Samsung device

 Original message 
From: Tom Alessi via CnC-List  
Date: 2016-08-02  1:30 PM  (GMT-04:00) 
To: cnc-list@cnc-list.com 
Cc: Tom Alessi  
Subject: Stus-List mast collar straps 



Hi,
This is my first season sailing  after a 
season on the hard doing repairs. When the yard re-stepped the mast the holes 
on 
the metal straps that bolt through the mast no longer align. The holes on the 
mast are lower by 3/8". As part of the rehab I had removed the mast collar. so 
I 
initially thought that I used too much caulking in the installation. I 
removed the collar and scrapped away all the caulking but the holes 
are still off. I wasn't there when the yard had originally took out the mast so 
I'm not sure if there was anything under the mast causing it to be slightly 
higher. I'm relunctant to drill a new set of holes.
  Any advice would be 
appreciated.
Thx
 
Tom Alessi
S/V ANDIAMO
C&C 36, 1980
Rockaway Bch, NY
646-283-1580
tagraph...@optonline.net
___

This list is supported by the generous donations of our members. If you like 
what we do, please help us pay for our costs by donating. All Contributions are 
greatly appreciated!


Stus-List mast collar straps

2016-08-02 Thread Tom Alessi via CnC-List
Hi,
This is my first season sailing  after a season on the hard doing repairs. When 
the yard re-stepped the mast the holes on the metal straps that bolt through 
the mast no longer align. The holes on the mast are lower by 3/8". As part of 
the rehab I had removed the mast collar. so I initially thought that I used too 
much caulking in the installation. I removed the collar and scrapped away all 
the caulking but the holes are still off. I wasn't there when the yard had 
originally took out the mast so I'm not sure if there was anything under the 
mast causing it to be slightly higher. I'm relunctant to drill a new set of 
holes.
  Any advice would be appreciated.
Thx

Tom Alessi
S/V ANDIAMO
C&C 36, 1980
Rockaway Bch, NY
646-283-1580
tagraph...@optonline.net
___

This list is supported by the generous donations of our members. If you like 
what we do, please help us pay for our costs by donating. All Contributions are 
greatly appreciated!