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Old 20-01-2009, 09:08   #1
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Location: Puget Sound
Boat: Islander 37 'Taku Wind'
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Islander 37 Base Plate for Mast . . .

I will try to make this short. I have a 1967 'Islander 37' that I acquired abandoned after sitting 4 years on the hard in a storage yard. I am completely going through the boat and have a problem with the base of the mast. It is partially corroded up about 3/4" part way around. The rest of the mast, the shrouds, and turnbuckles are perfect. The base plate the mast sits on is iron and bolted to an iron I-beam. My idea is to fabricate a spacer of about 1" - 2" to place between the I-beam and plate and cut off the same from the mast. I will then drill and bolt the plate back down. This way the shrouds will still be the correct length. I am trying to decide what to make the spacer out of. I have been thinking of using teak of some type of hard plastic. Does any one out there have any suggestions?
Thanks, Noel

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Old 25-01-2009, 06:46   #2
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Location: Yemen & Lebanon... the sailboat is in Lebenon, the dhow is in Yemen
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Hard plastic would be good.
Send pics.

S/V Arctic Lady
I love my boat, I can't afford not to!
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Old 25-01-2009, 07:28   #3
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if the mast step is made out of iron/steel and not aluminum i would have a new step made of alum. and make the spacer out of a phenolic mat. to insulate step and mast from steel i-beam. this is why your mast foot is corroded in the first place
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Old 01-03-2009, 06:50   #4
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I too have recently acquired a 1967 37 islander. The person we purchased it from built a box and filled it with resin he then suggested that I glass all around the wood box he made and over the top of it. I wish I could have seen its condition because now it will never be seen again.

I have a question for you. Do you know about how fuel efficient the atomic 4 20/22hp is?
we seem to be using a lot of fuel. any suggestions on operating that?

THank you
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Old 01-03-2009, 10:18   #5
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Location: Norfolk, VA
Boat: Morgan 34 and Watkins 27 astern of me. Hans Christian 38T is our current love
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Islander 37, Morgan 34

I have much the same problem you guys are encountering. My mast is stepped on a steel plate that sits on a big lump of lead. The mast is also corroded due to the galvanic activity of dissimilar metals. I was advised to cut off the damaged portion of the mast and replace steel with aluminum. I was also advised to make up the difference lost with the plate, and insert a "filler" of aluminum fitting into the bottom of the mast. Not sure why I should use the filler, but it sounded like a good idea.

As for the Atomic 4, mine is not running yet, but I have heard/ read that the original 2 blade, 12" prop is inefficient and too large. Indigo and Moyer both make a 3 blade, 10" prop that increases performance. This may help your problem, but not really sure what gas mileage was in the first place...
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Old 29-07-2010, 09:54   #6
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Hello--I too have a 37 Islander and am considering repowering w/Albin Diesel---am collecting info on prop size and reduction gear or 1-1----any ideas
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Old 29-07-2010, 09:55   #7
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Sorry that albin diesel in my previous post is a 22hp AD-2

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