c&c 99 saildrive seal replacement - SailNet Community

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Old 04-21-2014
kra kra is offline
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c&c 99 saildrive seal replacement

Has anyone had experience with replacing the saildrive seal ( the large rubber/neoprene doughnut shaped seal easily visible at the base of the engine when viewed from forward ) in a c&c 99 with a Volvo Penta MD2020 diesel engine. The manual suggests replacing every 7 years. I have #55 built in 2004. Have never had any problems with the seal and am wondering whether to replace as a matter of routine or to wait and see if problems develop. I sail on Lake Erie -Great Lakes-so no salt water exposure. What are other 99 owner's doing?
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Old 04-22-2014
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Re: c&c 99 saildrive seal replacement

I would go no more than nine years. I have heard of people pushing the replacement further, but that's a damned big hole in the boat if it fails…

Here is a link at CF where I talk about my saildrive boot and flange seal replacement:

> The Volvo is fairly simple, actually.
>
> There are 10 bolts in the lower unit: eight around the leg itself (safety
wired), and two more further outboard on either side of the flange.
>
> Remove the eight leg bolts, and loosen the two outboard ones. These two will
keep the leg from falling altogether as you loosen the lower leg away from the
upper one. Get hold of the leg and wiggle it loose, and then undo these two
bolts and drop the lower leg.
>
> I didn't get to see the entire upper unit removal, but what I did get is that
the Volvo has a three-point engine mount. You can loosen the aftermost one (at
the outdrive) and the two forward ones will allow the engine to pivot forward
enough that you can put a piece of 2x4 wood under it to lift the engine a bit.
Then the upper outdrive unit unbolts from the boat, and out it comes, boot and all

link: Volvo saildrives: learned something new - Cruisers & Sailing Forums
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Old 04-22-2014
kra kra is offline
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Re: c&c 99 saildrive seal replacement

Thanks for the info. I have not heard from other C&C 99 owners. Think I will go with replacing even though it is costly.
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