Thank you all for your advice regarding the slipping cone clutch on a Yanmar
SD 50 Saildrive
. My local Yanmar
dealer in Kemah
, Tx has a bad experience with lapping the cone clutch, and doesn't do it anymore. My SD50
started slipping intermittently a couple months ago and progressively got worse.
was manufactured in 2013-14 timeframe and had 220 hours total on it when the forward gear
completely failed. I could still reverse fine. This was a gradual failure as described in many comments from many owners.
Here is my situation: I went to get replacement parts
for the SD50 and the Yanmar dealer told me that Yanmar has ceased production on the SD50 and its parts
. So, I had to bite the bullet and replace the Yanmar SD50 with an SD60. This required the entire upper and lower unit of the SD60, as well as a conversion kit and some other part to soften the engagement of the clutch. It required multiple mechanics to lift
as well to install the parts. All in all, my 2014 Beneteau Oceanis
41 was out of the water
for a week. After the Saildrive
was replaced, I had to pay the yard to epoxy
the lower unit with bottom paint
. Total bill was about $12,000.00!
My Yanmar dealer says the rest of my SD50 Saildrive is in great shape, with only 220 hours on it. He suggested I put it on consignment and sell it.
Anyone need an SD50? I suppose you could recondition the clutch as suggested by others, or put in the parts suggested and make this thing work
. It would be useful if you need other parts as the rest of the unit is in great shape.
If your interested in this SD50 Saildrive, please contact me at my email
and we can talk terms, as these are no longer available from Yanmar.