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Go Back   SailNet Community > Boat Builders Row > Islander > Islander Bahama 30
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Thread: Islander Bahama 30 Reply to Thread
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Topic Review (Newest First)
05-14-2011 11:12 PM
tonykeel
Sagging Cabin Sole / Dish in cabin top

I found that there was a little sagging (1/8") apparent of the cabin top at the mast step. We destepped the mast and removed the compression post. The compression post step was on the cabin sole, and this was supported underneath by a block of wood covered with fibreglass, with a V shape at the bottom which sat in the V of the hull. There was some bedding compound where the block of wood contacted the hull / keel area.

The bedding compound had crumbled, and the plywood in the cabin sole had compressed. We then jacked up the cabin top with a 2x4 and jack to return it to its former position and judged by the shape of the curved sides and flatness of the mast step. We raised it more like 1/2", not the apparent 1/8" of compression that was apparent. Now the cabin top looks like it is the original shape.

We pulled the block out and tore it apart in the process. The wood was dry. We reinforced the area under the block and made it flat with fibreglass, and then a teak block was installed on top of the flat surface. The compression post was then installed on top of the teak block.

Unfortunately, I split the teak compression post when I was installing the 3/8" lag bolt which connects the compression post to the mast step. The post did not seem dry rotted or anything. Strange. Looking for a piece of teak now to build a new compression post.

My main message is that a small amount of cabin top compression visible may actually be more than it appears. That sole compresses and so does the old bedding agent under the compression block under the sole.

PS - We had to cut out a rectangular hole under the compression post in order to get the old block out.
04-16-2011 12:53 AM
tonykeel
Sole construction under compression post

These pics are for a 75 islander 30. How the B82 constructed.
04-15-2011 02:38 PM
hanscan Hey Tonykeel ! Thanks for your reply, the configuration of the Compression

Post in your Pictures is different on my 82 IB30
04-14-2011 01:44 PM
tonykeel
more pics

looks like the cabin sole is 3/8" fibreglass, with a hold space underneath which has deformed. then under that a some fibreglass and filler, with some plywood pieces. Pictures are a little hard to figure out but I hope they help.
04-14-2011 01:40 PM
tonykeel
Pics

I will send some more. The sole is deflected 3/8 of an inch and there is a shim on top.
02-14-2011 12:46 PM
SpcAlan1
Quote:
Originally Posted by devemaster View Post
I'm looking for information from anyone who has rebuilt the cabin sole of an Islander Bahama 30. I'm looking to purchase a boat that has delamination issues on the cabin sole and possibly rot issues below in the floor frame.

Does this floor frame run beneath the settees, cabinets, etc.?

Is it wood or fiberglass?

Any pictures or info regarding the compression post substructure on the B30?

Thanks.

Please see my photos for my floor in my Islander 30 -
09-19-2010 02:24 PM
hanscan
Manual

Quote:
Originally Posted by rlange View Post
Interested in an owners manual as well as an auxiliary tiller. Thanks, Bob

Hey Bob! Check out 404 File Not Found... I posted a IB30 delivery list (original) on the Islandersailboat Website, also have a complett IB30 Manual. My email is hobein@shaw.ca (hanscan)
07-10-2010 08:33 PM
huguley3 Mine seemed to have some flexing of the wood that spanned the hull under the floor where the compression post sat. Not sure if someone had overtightened the stays or if it was just age. The surveyor just said it was something to keep an eye on and I have been and it has not changed.

Quote:
Originally Posted by progolfer View Post
Another thing has anyone had any problems with flexing in area of compression post?
07-08-2010 11:43 PM
progolfer If incapsulated what is easy way to determine separation
07-08-2010 11:43 PM
progolfer islander 30 encapsulated keel or bolt on 1980 model
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