Is This A Problem? - SailNet Community
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post #1 of 18 Old 01-14-2016 Thread Starter
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Is This A Problem?

Visited my boat last week and this is what I saw.

Is that hole going to be a problem?

Just kidding. I have had the saildrive removed to get the seal between the drive and the hull replaced. The mechanic is going through the sail drive while it's out. Some new seals, zincs, etc. and I would be good to go in the spring.

I was surprised at how large the hole is, and how thick the hull is. Lastly, the seal was original. The boat is a 2002 so the seal has been in use for 10+ years and appears to be in good condition. The factory service interval is 7 years but I will wait another 10 years to do it (with regular inspection of course).

Barry
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Barry Lenoble
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post #2 of 18 Old 01-14-2016
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Re: Is This A Problem?

My Volvo sail drive seal was good two years ago when I sold my boat and the boat was built in 1978. I had bought a replacement but never needed it.

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post #3 of 18 Old 01-14-2016
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Re: Is This A Problem?

You guys are making me feel better. I was worried the seals on my boat were 10 years old. I haven't seen the dreaded milky oil, but I was expecting it soon..

Since my boat is out of the water, I'm gonna do both seals to make myself feel better.
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post #4 of 18 Old 01-14-2016
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Re: Is This A Problem?

The replacement parts for my seal cost me around $1,100. I loved that saildrive.

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post #5 of 18 Old 01-14-2016
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Re: Is This A Problem?

75 cents of stuffing 10 minutes a dental tool 2 pair of big ass channel locks and a good winters sleep.
Remind me how a sail drive is so much better than a stuffing box?
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post #6 of 18 Old 01-14-2016
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Re: Is This A Problem?

Sail drives are far more efficient than a shaft and a P bracket. Less drag, better prop angle. Better in reverse. Bone dry bilge. Less noise and vibration. My sail drive required only minimal annual spring maintainence. Nothing could have been easier.
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post #7 of 18 Old 01-15-2016
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Re: Is This A Problem?

Personally, if I planned to keep the boat and already had the sail drive out, I would go ahead and replace the seal. Sounds like it could be an expensive part, but waiting for a leak down the road probably isn't the best way to signal replacement.


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post #8 of 18 Old 01-15-2016
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Re: Is This A Problem?

you folks are lucky. the saildrive on my islander 26 was swiss cheese, and patched with jbweld. wheeee....
good thing i noticed the ingress of water so when i hauled out i had saildrive removed and hole patched well. no more sinking feeling. (2002)
make sure your zincs are good always.
the seals were perfect, the unit was toast. gotta love po maintenance or lack thereof


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Last edited by zeehag; 01-15-2016 at 09:20 AM.
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post #9 of 18 Old 01-15-2016 Thread Starter
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Changing Seals

Absolutely!

The main seal that keeps water out will be changed. Additionally, some internal seals will be changed to make sure seawater doesn't get into the drive. The mechanic has the drive disassembled and is cleaning the raw water internal passages (lots of mussel growth), will install fresh gear oil, etc.

My boat is on a mooring so the zincs have it pretty easy. I have two new zincs ready to be installed. In the spring of 2014 I had sanded the saildrive leg down to bare metal, then primed it with the stuff recommended by Volvo and painted it with the recommended antifouling. I will check and redo as necessary this spring. I hope this prevents any electrolysis problems.

After two years with a saildrive I am very impressed with the performance. I can motor all day at 7 kts, back straight up, and the 2 blade geared folding prop is great for sailing.

Lastly, the Volvo web site is great for parts lookup, manuals, service intervals, etc. I can type the serial number in for the engine and drive and get all the info I need.

Barry

Quote:
Originally Posted by Minnewaska View Post
Personally, if I planned to keep the boat and already had the sail drive out, I would go ahead and replace the seal. Sounds like it could be an expensive part, but waiting for a leak down the road probably isn't the best way to signal replacement.

Barry Lenoble
Deep Blue C, 2002 C&C 110
Mt. Sinai, NY

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post #10 of 18 Old 01-16-2016
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Re: Is This A Problem?

Since you have it off and the engine moved forward, you should consider replacing the rear seal on the engine also.

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