CD25 hull/deck joint & liner

[Steve Bischoff]

Some time ago I posted a question asking if anyone knew if the CD25 hull/deck joint was thru-bolted. The consensus was yes. After having 3 boats inspected by surveyors, and finally seeing two myself, the answer is actually no. Sort of. The chainplates, bow fitting,and genoa tracks are thru-bolted. But most of the joint is simply held together by adhesive. The boats inspected were a '76, '77, and '78.
I bought the '78.
Does anyone have firsthand knowledge of the liner/hull/deck structure?
I'm interested in knowing if the liner is structural, or just for appearances. I need to remove parts of it, maybe even most of it, but am concerned about weakening the boat. Any help would be appreciated!!
I'd like to make some modifications to the hull prior to sailing to England and back next year.
Pleas feel free to contact me directly if desired...



sailorguy1@excite.com

[Bill]

Some time ago I posted a question asking if anyone knew if the CD25 hull/deck joint was thru-bolted. The consensus was yes. After having 3 boats inspected by surveyors, and finally seeing two myself, the answer is actually no. Sort of. The chainplates, bow fitting,and genoa tracks are thru-bolted. But most of the joint is simply held together by adhesive. The boats inspected were a '76, '77, and '78.
I bought the '78.
Does anyone have firsthand knowledge of the liner/hull/deck structure?
I'm interested in knowing if the liner is structural, or just for appearances. I need to remove parts of it, maybe even most of it, but am concerned about weakening the boat. Any help would be appreciated!!
I'd like to make some modifications to the hull prior to sailing to England and back next year.
Pleas feel free to contact me directly if desired...

Steve,
I'm interested in rebedding deck hardware and have similar questions. Is the deck on CD25s laminated with balsa? From what I can see (from inside sail lockers) it appears not. Would also appreciate input from anyone regarding deck, liner and hull structure.
Thanks
Bill



wawillis@shore.intercom.net

[Tom]

Some time ago I posted a question asking if anyone knew if the CD25 hull/deck joint was thru-bolted. The consensus was yes. After having 3 boats inspected by surveyors, and finally seeing two myself, the answer is actually no. Sort of. The chainplates, bow fitting,and genoa tracks are thru-bolted. But most of the joint is simply held together by adhesive. The boats inspected were a '76, '77, and '78.
I bought the '78.
Does anyone have firsthand knowledge of the liner/hull/deck structure?
I'm interested in knowing if the liner is structural, or just for appearances. I need to remove parts of it, maybe even most of it, but am concerned about weakening the boat. Any help would be appreciated!!
I'd like to make some modifications to the hull prior to sailing to England and back next year.
Pleas feel free to contact me directly if desired...

There is a schematic drawing of the hull deck joint in the manual. I think I posted that the last time you asked. It's not "simply put together with adhesive", but it has a better design than through bolts or pop rivets. One of the best hull to deck joints in the industry IMHO. You seem to want to believe that this is a weakness in CDs -- is there something we should know here? What is your evidence? Do you know of a CD that has leaked or failed there?



TacCambria@thegrid.net

[Jim Stull]

Some time ago I posted a question asking if anyone knew if the CD25 hull/deck joint was thru-bolted. The consensus was yes. After having 3 boats inspected by surveyors, and finally seeing two myself, the answer is actually no. Sort of. The chainplates, bow fitting,and genoa tracks are thru-bolted. But most of the joint is simply held together by adhesive. The boats inspected were a '76, '77, and '78.
I bought the '78.
Does anyone have firsthand knowledge of the liner/hull/deck structure?
I'm interested in knowing if the liner is structural, or just for appearances. I need to remove parts of it, maybe even most of it, but am concerned about weakening the boat. Any help would be appreciated!!
I'd like to make some modifications to the hull prior to sailing to England and back next year.
Pleas feel free to contact me directly if desired...

Steve, I can only speak about my boat, a '75 CD25 but it has thru bolts. We totally stripped the boat to a bare hull for a total rebuild/upgrade. We spent a lot of time removing and replacing these bolts after rebedding the items you mention plus the toe rail.
BTW: A note of caution, check the seahood. This was very poorly attached on my boat.
I modified the liner in places but I would forget about removing it.
If your boat is like mine you will find it bonded to the hull in several places.
Jim



jtstull@icubed.com

[Jim Hollister]

Steve,
I'm interested in rebedding deck hardware and have similar questions. Is the deck on CD25s laminated with balsa? From what I can see (from inside sail lockers) it appears not. Would also appreciate input from anyone regarding deck, liner and hull structure.
Thanks
Bill

I'm trying right now to rebed the port lifeline stanchion that is behind the head compartment. Very difficult to get to - had to saw through the liner an oval about the size of a football, then still can't get to two of the nuts on the bolts - rusted too. Still mulling this one over. I found that there is a steel plate (rusted in mine from leaks) right under the stanchion - maybe all three port chain plates, though not sure.

Any advice will be welcomed.

Jim Hollister



jjhollister@excel.net

[Steve Bischoff]

Some time ago I posted a question asking if anyone knew if the CD25 hull/deck joint was thru-bolted. The consensus was yes. After having 3 boats inspected by surveyors, and finally seeing two myself, the answer is actually no. Sort of. The chainplates, bow fitting,and genoa tracks are thru-bolted. But most of the joint is simply held together by adhesive. The boats inspected were a '76, '77, and '78.
I bought the '78.
Does anyone have firsthand knowledge of the liner/hull/deck structure?
I'm interested in knowing if the liner is structural, or just for appearances. I need to remove parts of it, maybe even most of it, but am concerned about weakening the boat. Any help would be appreciated!!
I'd like to make some modifications to the hull prior to sailing to England and back next year.
Pleas feel free to contact me directly if desired...

Steve, I can only speak about my boat, a '75 CD25 but it has thru bolts. We totally stripped the boat to a bare hull for a total rebuild/upgrade. We spent a lot of time removing and replacing these bolts after rebedding the items you mention plus the toe rail.
BTW: A note of caution, check the seahood. This was very poorly attached on my boat.
I modified the liner in places but I would forget about removing it.
If your boat is like mine you will find it bonded to the hull in several places.
Jim -

Thanks for the heads-up on the seahood - it does look poorly attached, and I'll probably end up thru-bolting it (...that darn liner...!)
On your thru-bolts: were they UNDER the toe-rail, or in plain sight (I'm speaking from a deck view) ALONG SIDE it? The reason I ask is that the possibility exists that we all missed seeing them. I can see the underside of the joint in the cockpit area, and there are no bolts there - between the genoa tracks and the stern, that is.
Thanks,
Steve



sailorguy1@excite.com

[Steve Bischoff]

Some time ago I posted a question asking if anyone knew if the CD25 hull/deck joint was thru-bolted. The consensus was yes. After having 3 boats inspected by surveyors, and finally seeing two myself, the answer is actually no. Sort of. The chainplates, bow fitting,and genoa tracks are thru-bolted. But most of the joint is simply held together by adhesive. The boats inspected were a '76, '77, and '78.
I bought the '78.
Does anyone have firsthand knowledge of the liner/hull/deck structure?
I'm interested in knowing if the liner is structural, or just for appearances. I need to remove parts of it, maybe even most of it, but am concerned about weakening the boat. Any help would be appreciated!!
I'd like to make some modifications to the hull prior to sailing to England and back next year.
Pleas feel free to contact me directly if desired...

Steve,
I'm interested in rebedding deck hardware and have similar questions. Is the deck on CD25s laminated with balsa? From what I can see (from inside sail lockers) it appears not. Would also appreciate input from anyone regarding deck, liner and hull structure.
Thanks
Bill

Bill - The owners manual I got with the boat indicates the decks are cored, and two holes I've drilled to mount stuff bears that out. Other than that, I can't be of much help....
Steve



sailorguy1@excite.com

[Jim Stull]

Some time ago I posted a question asking if anyone knew if the CD25 hull/deck joint was thru-bolted. The consensus was yes. After having 3 boats inspected by surveyors, and finally seeing two myself, the answer is actually no. Sort of. The chainplates, bow fitting,and genoa tracks are thru-bolted. But most of the joint is simply held together by adhesive. The boats inspected were a '76, '77, and '78.
I bought the '78.
Does anyone have firsthand knowledge of the liner/hull/deck structure?
I'm interested in knowing if the liner is structural, or just for appearances. I need to remove parts of it, maybe even most of it, but am concerned about weakening the boat. Any help would be appreciated!!
I'd like to make some modifications to the hull prior to sailing to England and back next year.
Pleas feel free to contact me directly if desired...

Steve, I can only speak about my boat, a '75 CD25 but it has thru bolts. We totally stripped the boat to a bare hull for a total rebuild/upgrade. We spent a lot of time removing and replacing these bolts after rebedding the items you mention plus the toe rail.
BTW: A note of caution, check the seahood. This was very poorly attached on my boat.
I modified the liner in places but I would forget about removing it.
If your boat is like mine you will find it bonded to the hull in several places.
Jim -

Thanks for the heads-up on the seahood - it does look poorly attached, and I'll probably end up thru-bolting it (...that darn liner...!)
On your thru-bolts: were they UNDER the toe-rail, or in plain sight (I'm speaking from a deck view) ALONG SIDE it? The reason I ask is that the possibility exists that we all missed seeing them. I can see the underside of the joint in the cockpit area, and there are no bolts there - between the genoa tracks and the stern, that is.
Thanks,
Steve

Hi Steve
My toe rail has the bolts thru the toe rail. They are not readily visable as the holes are plugged.
On my boat you can not see the bolts from the lazzerette but if you reach around and up into the area under the toe rail there is a "slot" which provides minimal access to reach the heads.
I increased the size of back-up plates and used ss fender washers wherever possible when replacing hardware and bolts. However these bolts are so close to the hull (and the hull curves inward) there is very little room. A few of the nuts were very, very dificult to work with because they were actually up against the hull.
The lifeline stantions on my '75 are very weak. The later CD25's I have looked at had more "beef". I was going to change mine but none of the West Marine or Boats catalogs had sizes that would fit due to this same lack of clearence.
This is on my project list for next winter. I will have to go to someone like Rigrite or custom make new stronger units.
I added a bridge deck to my boat last winter. The '75's did not have this feature but the later boats did. Don't know about yours. This has reduced the volume in the cockpit if I get pooped, strengthened the cabin and also provided a locker for a "by the book" propane system. (My bridge deck has a access lid, same as the lazzerettes.).
Good luck with your project.
Jim



jtstull@icubed.com

[Don Carr]

Steve, I can only speak about my boat, a '75 CD25 but it has thru bolts. We totally stripped the boat to a bare hull for a total rebuild/upgrade. We spent a lot of time removing and replacing these bolts after rebedding the items you mention plus the toe rail.
BTW: A note of caution, check the seahood. This was very poorly attached on my boat.
I modified the liner in places but I would forget about removing it.
If your boat is like mine you will find it bonded to the hull in several places.
Jim -

Thanks for the heads-up on the seahood - it does look poorly attached, and I'll probably end up thru-bolting it (...that darn liner...!)
On your thru-bolts: were they UNDER the toe-rail, or in plain sight (I'm speaking from a deck view) ALONG SIDE it? The reason I ask is that the possibility exists that we all missed seeing them. I can see the underside of the joint in the cockpit area, and there are no bolts there - between the genoa tracks and the stern, that is.
Thanks,
Steve

Hi Steve
My toe rail has the bolts thru the toe rail. They are not readily visable as the holes are plugged.
On my boat you can not see the bolts from the lazzerette but if you reach around and up into the area under the toe rail there is a "slot" which provides minimal access to reach the heads.
I increased the size of back-up plates and used ss fender washers wherever possible when replacing hardware and bolts. However these bolts are so close to the hull (and the hull curves inward) there is very little room. A few of the nuts were very, very dificult to work with because they were actually up against the hull.
The lifeline stantions on my '75 are very weak. The later CD25's I have looked at had more "beef". I was going to change mine but none of the West Marine or Boats catalogs had sizes that would fit due to this same lack of clearence.
This is on my project list for next winter. I will have to go to someone like Rigrite or custom make new stronger units.
I added a bridge deck to my boat last winter. The '75's did not have this feature but the later boats did. Don't know about yours. This has reduced the volume in the cockpit if I get pooped, strengthened the cabin and also provided a locker for a "by the book" propane system. (My bridge deck has a access lid, same as the lazzerettes.).
Good luck with your project.
Jim

Jim;
I have an '81 CD25. The stanchions were made by Ocean Engineering..(there is a ref to them on this site). Call the number and they will gladly make them for you at a cost of approx. $47 each. I noticed that Schaeffer makes what look to be very close for $38 - $42 each. Just an FYI..



carrd@erols.com

[Jim Stull]

Thanks for the heads-up on the seahood - it does look poorly attached, and I'll probably end up thru-bolting it (...that darn liner...!)
On your thru-bolts: were they UNDER the toe-rail, or in plain sight (I'm speaking from a deck view) ALONG SIDE it? The reason I ask is that the possibility exists that we all missed seeing them. I can see the underside of the joint in the cockpit area, and there are no bolts there - between the genoa tracks and the stern, that is.
Thanks,
Steve

Hi Steve
My toe rail has the bolts thru the toe rail. They are not readily visable as the holes are plugged.
On my boat you can not see the bolts from the lazzerette but if you reach around and up into the area under the toe rail there is a "slot" which provides minimal access to reach the heads.
I increased the size of back-up plates and used ss fender washers wherever possible when replacing hardware and bolts. However these bolts are so close to the hull (and the hull curves inward) there is very little room. A few of the nuts were very, very dificult to work with because they were actually up against the hull.
The lifeline stantions on my '75 are very weak. The later CD25's I have looked at had more "beef". I was going to change mine but none of the West Marine or Boats catalogs had sizes that would fit due to this same lack of clearence.
This is on my project list for next winter. I will have to go to someone like Rigrite or custom make new stronger units.
I added a bridge deck to my boat last winter. The '75's did not have this feature but the later boats did. Don't know about yours. This has reduced the volume in the cockpit if I get pooped, strengthened the cabin and also provided a locker for a "by the book" propane system. (My bridge deck has a access lid, same as the lazzerettes.).
Good luck with your project.
Jim

Jim;
I have an '81 CD25. The stanchions were made by Ocean Engineering..(there is a ref to them on this site). Call the number and they will gladly make them for you at a cost of approx. $47 each. I noticed that Schaeffer makes what look to be very close for $38 - $42 each. Just an FYI..

Thanks for the tip Dave.
Jim



jtstull@icubed.com