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Forum: Propellers & Drive Systems 06-03-2015, 06:24
Replies: 84
Views: 55,183
Posted By Captain Bill
Re: Yanmar SD50 Saildrives - Have the Cone Clutch Problems Been Solved ?

rives

If the clutch was slipping enough to glaze the drive probably got extremely hot. Since these drives are sealed units more heat means more pressure and the seals are the weak links and will...
Forum: Propellers & Drive Systems 01-01-2015, 17:15
Replies: 84
Views: 55,183
Posted By Captain Bill
Re: Yanmar SD50 Saildrives - Have the Cone Clutch Problems Been Solved ?

It would appear to be at least somewhat related to whether you are using right or left handed props. I got nearly 3000 hours on mine before having problems with reverse with left hand props. People...
Forum: Propellers & Drive Systems 09-10-2014, 15:58
Replies: 84
Views: 55,183
Posted By Captain Bill
Re: Yanmar SD50 Saildrives - Have the Cone Clutch Problems Been Solved ?

Of course now the SD60's have disk clutches. One has to wonder if they have just replaced one problem with another. It makes no sense to me that they just didn't go back to dog clutches. I guess...
Forum: Propellers & Drive Systems 09-04-2014, 18:39
Replies: 84
Views: 55,183
Posted By Captain Bill
Re: Yanmar SD50 Saildrives - Have the Cone Clutch Problems Been Solved ?

It certainly does support your case. I started a poll to see if people with CCW props were having less problems with the sd40/50 than people with CW props, but so far no one is putting in their...
Forum: Propellers & Drive Systems 07-04-2014, 13:47
Replies: 84
Views: 55,183
Posted By Captain Bill
Re: Yanmar SD50 Saildrives - Have the Cone Clutch Problems Been Solved ?

Panache, I was wondering why I was not having problems in forward as so many other people have had. I just realized the answer, my SD40s are set for CCW rotation which means my forward gear is...
Forum: Propellers & Drive Systems 11-08-2013, 04:04
Replies: 84
Views: 55,183
Posted By Captain Bill
Re: Yanmar SD50 Saildrives - Have the Cone Clutch Problems Been Solved ?

This is interesting information, as I have had my first evidence of slipping on my sd40, but in reverse only. As the drive has about 2000 hours on it I guess I have been lucky. It looks like a...
Forum: Propellers & Drive Systems 10-08-2013, 05:58
Replies: 84
Views: 55,183
Posted By Captain Bill
Re: Yanmar SD50 Saildrives - Have the Cone Clutch Problems Been Solved ?

I don't know what the standard warranty is, but one does not typically need to pull the boat out of the water to service the cone clutches. That whole assembly is removeable from inside the boat and...
Forum: Propellers & Drive Systems 07-02-2011, 11:47
Replies: 84
Views: 55,183
Posted By Captain Bill
I don't know how they could have them solved. ...

I don't know how they could have them solved. According to the parts manual I have they use all the same parts in the cone clutch. That is all SD40 and SD50 models use the exact same parts in the...
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