keensailor said..
Bought our boat two years ago with a fully reconditioned Bukh DV10-LSME and original saildrive.
So the motor is effectively two years old and the saildrive 30 years old. The saildrive slips slightly when you turn the rudder full lock when motoring along as I think it amplifies the load on the prop. Now a whirring sound has developed which is worse than the old whirring sound.

I am just concerned how much life the saildrive has left in it. It sounds like the gears and bearings are worn.

If we want to keep the boat what is economically the best thing to do.

It would depend on where the problem is Keen the sail legs is a small item If this was the problem I could try and ask the guy that wants my sail drive if he would not mind if the leg didn't go he was more interested in the gear box but said he'd take the leg as well. If its slipping the cones in the gear box would need attention I don't have the sail drive manual and have not dismantled one so Im not much help I'm afraid .
The guy I bought my dv24 off found it better value to buy a new unit a Volvo as it was at a clearance price and his son worked near by so he got a good deal.]
He must have been going to rebuild the sail drive as he dismantled the leg and replace the seals it. According to Frant this is worn out . The previous owner told me the DV24 I purchased off him had done 3000 hours . To me the sail leg spins easily and has no back lash and appears to be in reasonable order.
At that stage I think he was told by his son he could get a good deal on the Volvo as they were clearing out old models.
I priced some stuff over seas and told the guy I had bought a dv24 with a sail drive with slipping gear box cones some time later I was contacted by some one else over seas at the other end of the world wanting to buy the sail drive ever after He was told the gear box cones were slipping .
I had tucked the dv 24 away for next winter and wanted no more to do with it till then . but after being contacted its wasted some of my valuable time which I don't have any to spare right now
But Id be looking at your gear box not you're leg all it has is a 90 degree bevel gear set up Id say and a couple of seals other than its run out of oil in the leg and the seals are leaking and or letting water in and damaged the bearings there would be not much else to go wrong in there
Perhaps if the bearings were seizing it could put more load on the cones in the gear box and make them slip Im not sure its a possibility but I dont have a drawing so I cant come to that conclusion

Id be looking at number two on the down shaft and 17 and 2 on the horizontal shaft they appear to be needle rollers which could be obtained from a local bearing shop you would have to remove them and take them in so they can measure them up Also the seals but that would depend on what type of seals they are some bukh seal have bronze springs instead of stainless steel . At a bearing shop they make have the seal size but be careful on what the spring in inside the seal .
Is there any change in the oil color? perhaps have some of the oil tested for contamination . But to me that's a waste of time if it already a problem .
Puther on the hard and drop the leg off it has to come off either way .
Id do it now so you might have her back together before summer

keensailor said..
thanks for the offer and info
I suspect the leg I have is different in that it does not have a separate gearbox at the top coming off the motor.
With my arrangement the motor sits directly above the saildrive and the gearbox is down in the leg

Is number five or number 7 a shim ? is it offered in a variety of thicknesses Keen?

For me its a a little hard not having the thing in front of me.
If the vertical drive shaft had to much end play it may cause to much clearance for the cones and may slip

I dont think this had cones just number 10 and 14 drive the horizontal and 12 moves it into forward or reverse

Thanks for the info HG !
much appreciated.
I think in the end I do as you suggest, pull it down and see what is required. If it looks real exy then I might have to go to a plan B.
I guess a plan C might be an outboard on the back.
A few years back a guy in WA was selling 2 brand new (never been used) Bukh DV10-LSME with saildrives and gori props for 5k each. Should have just bought one.

The engineroom.com guy in NZ said a lot of the parts in the saildrive are same as suzuki parts, go figure that.

Gallagher said..
Hi All,

I have the same DV10-LSME Saildrive and I need to remove it to do some work. Can't figure out how to separate the engine from the saildrive. A stupid question....can I pull the engine off of the saildrive and leave the drive in the boat while the boat is in the water?

Thanks in advance,

Jeff

Part number 1 is unbolted from part number 49 after you lift the boat out on the hard

So if you wanted to work on the sail leg you should be able to remove part number 39 and 40 maybe two of each( bolts and the leg should slide down
57 is the lower half of the engine to sail drive coupling the other half would stay on the motor
This is only a quick opinion which might have been better not said

If you have a google around you should find a part and workshop manual

Gallagher said..

HG02 said..

Gallagher said..
Hi All,

I have the same DV10-LSME Saildrive and I need to remove it to do some work. Can't figure out how to separate the engine from the saildrive. A stupid question....can I pull the engine off of the saildrive and leave the drive in the boat while the boat is in the water?

Thanks in advance,

Jeff

Part number 1 is unbolted from part number 49 after you lift the boat out on the hard

So if you wanted to work on the sail leg you should be able to remove part number 39 and 40 maybe two of each( bolts and the leg should slide down
57 is the lower half of the engine to sail drive coupling the other half would stay on the motor
This is only a quick opinion which might have been better not said

If you have a google around you should find a part and workshop manual

Thanks for the info, downloaded and printed the manuals. So no way to remove the engine and leave the saildrive in with the boat floating....bummer.

turning a negative into a positive you will be able to polish her sides while shes out shell look nice and pretty when you done