Volvo 40 hp with sail drive and rubber gasket

[landonshaw]

I have a md2040 with a sail drive and where the sail drive goes through the hull there is a rubber gasket that fits tight to the drive and is glued to the hull. I'm not sure it's purpose except to make the water move smoothly along the hull. I have lost two of these items. Anyone have an idea what product I should use to glue it to the hull?


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[Ostinato]

What have tried so far? I have had success with products like 3m 4000. Even 5200 would probably be ok.

[landonshaw]

I except I used the 4200. I seemed to have a problem getting it to fit tight up against the haul. That might have been some of my problems. Any ideas?


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[Ostinato]

I wedge a flat board up against it and held it in place by a long board that reached the ground.

[landonshaw]

I'm thinking this time to take a extra batten to hold the ends down then support the sides the way you suggest.


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[GordMay]

The Volvo Penta 120S saildrive seal Installation Guide (pages 8 & 9) specifies a “high quality contact glue, intended for plastics & rubber”
Really helpful that!
➥ https://verl900.files.wordpress.com/...drive-seal.pdf

I’ve read others recommend Bostik 2402.
➥ https://www.ewetsuits.com/acatalog/b...2402-guide.pdf

[Lionelsole]

Hi.
Had mine replaced last month (in Algeciras) and the yard used polyeurathane sealant. It might be a bit early to tell but have sailed about 800 miles since and it looks good, though I did have to trim a little edge that was lifting.
I personally prepped the hull first so it was very clean and well keyed.
Lionel

[philip.cat]

What I did with my saildrive legs, I took off the rubber seal! and filled the gap with sika no more problems I have sailed from Malaysia to Turkey and the job I did is still perfect, whenever I need to take out the leg I will just cut out the Sika and replace with the same material (how often do we take out the legs) that's my fix for a constant problem with that rubber seal.
Phil on Big Bandicoot

[landonshaw]

Which Sika product did you use? I went on the Internet and there are a number of products.

[philip.cat]

What I did regarding the use of Sika on my saildrive legs, first I cleaned as best I could without taking out the legs (a lot of crap up there) then I squeezed up some Sika, on top of the first layer I put small pieces of plastic honeycone inside (saves on the Sika) then I just kept putting the Sika in until they were full it took about 10 tubes to fill them both up (Yanmar SD 20s) The Sika I used was 291 from memory, the paint stays on ok and no more problems with the seals flapping about or disappearing.
Phil on Big Bandicoot moving along the Turkish Coast.

[Lindberg]

Had the same problem, contact glue did not hold. Now used Sikaflex 291 and it seems to work just great.

[landonshaw]

Lindbergh, you used silks flex 291 as a glue or filled the cavity?

[Lindberg]

I used it as a glue, that was after hearing that this is what the professional marine workshops here is Sweden used. Last spring i used contact glue (did everything by the book, but still it failed) and it got loose while cruising in Scotland and managed to get in to the propeller. Thought I lost a blade or something until I managed to dive down and clear the bl**dy rubber-thing.

[GordMay]

Greetings and welcome aboard the CF, Lindberg.

[landonshaw]

Lindbergh, how long has it lasted this time?
I'm coming to Sweden to sail this year again. A friend has a boat and we sail in the Baltic a few weeks every year. Love the saunas after a day of sailing!


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