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Old 31-08-2007, 19:52   #1
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Sail Drive Manufacturers

Most marine diesels are derived from either the motor vehicle or industrial areas but who makes the sail drives. I read some where that ZF makes the Nannies but there is no mention of sail drives on ZF's web site and no response to email.
I ask because I am thinking of useing an engine that is not supplied in any of the packaged units. Are they obtainable other than as spare parts?

Mike
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Old 01-09-2007, 05:26   #2
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There really are only two of note. Volvo and Kanzaki/Yanmar. The units are available without engines. They will have an SAE bellhousing patern.
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Old 01-09-2007, 05:53   #3
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Do you know who makes the Nanni units, Volvo ?, They only have a single rubber seal.
Mike
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Old 01-09-2007, 20:16   #4
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I got a saildrive for sale: Yanmar SD 31.

5 hours t/t
6 years old
Excellent mechanical condition
New output shaft and zinc

Also have a transmission for it.

Make offer...
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Old 02-09-2007, 05:39   #5
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Pat
Do you know who makes the Nanni units, Volvo ?, They only have a single rubber seal.
Mike
Sounds like a Volvo. Yanmar uses a two layer seal.
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Old 02-09-2007, 07:25   #6
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OK for those that have the experience which is the most reliable.
From other threads here and elsewhere I am of the understanding that the Volvo might be the better leg. Reasons:-
It seems the volvo rubber bootie has a far greater time to replacement and a similar price.
The Yanmars oil change seems a lot more difficult and frequent.
Are my impressions correct?
Mike
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Old 02-09-2007, 07:44   #7
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It depends on the unit. How many HP are you going to be running?
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Old 02-09-2007, 07:54   #8
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15 to 20
Two of in a cat
Mike
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Old 02-09-2007, 08:11   #9
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Even though the stated service life of the Yanmar is shorter. I think it's a better unit. Parts are less expensive than the Volvo. Props interchange with Volvo.
Now, to get really off track. Have you looked at the Stillett drive. The do a dive leg that can be electric powered. Then you have one engine and two drives.
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Old 02-09-2007, 08:40   #10
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Pat
I have seen these but tended to dismiss them as I like the idea of the isolation of the rubber bootie. The sillette seem solid mount. I may have to see what further info they can supply as their website is rather spartan.
Do you have any experience with them, reliability etc. They do have the advantage of being available with a bronze lower unit however.
Thanks
Mike
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Old 02-09-2007, 08:46   #11
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Mike,
The only Bronze lower units out there are the Volvo IPS. All of the saildrives are Aluminum. Are you trying to build this thing to last till the cockroaches die?
I have no experience with Stillett directly.
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Old 02-09-2007, 09:11   #12
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Pat
There is a bronze option for some of the legs, 7 Kg weight penalty.
http://www.sillette.co.uk/elect_saildrives.pdf is one.

Are you trying to build this thing to last till the cockroaches die?
Hopefully longer
Actually just trying to avoid problems where poss. The bronze would lower corrosion probs.

Mike
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Old 02-09-2007, 09:19   #13
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Are you trying to build this thing to last till the cockroaches die?
Hopefully longer

Mike
All I can say is, overkill. The roaches will outlast you.
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Old 03-09-2007, 06:51   #14
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They are sending me a bunch of info. I will post it when it arrives.
Mike
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Old 10-04-2009, 12:27   #15
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Saildrive

I realize this is an old posting but...do you still have that saildrive?

Karl
karlpetersen@cavtel.net


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Originally Posted by CSY Man View Post
I got a saildrive for sale: Yanmar SD 31.

5 hours t/t
6 years old
Excellent mechanical condition
New output shaft and zinc

Also have a transmission for it.

Make offer...
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