Greg2
Well-Known Member
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Red diesel going, going, going, gone! How’s the fuel consumption versus maintenance costs equation looking now?
Shaft drive transmission failure - diagnosis
- Thread starter Momac
- Start date
Red diesel going, going, going, gone! How’s the fuel consumption versus maintenance costs equation looking now?
kashurst
Well-Known Member
If you do more than 500 miles a year at planing speeds you would probably be better off with outdrives
However, add in peace of mind, then only your own experiences will help you decide.
Or ask a marine engineer what would they pick and go from there.
There is a best answer for each boat owner, hopefully people will knowledgeably choose what's best for them. I have learned loads from this forum and now know what is best for my purposes. If I did 1000 miles a year I would even consider IPS.
It's like buying a saloon car or a big 4x4 - what do you want to do
However, add in peace of mind, then only your own experiences will help you decide.
Or ask a marine engineer what would they pick and go from there.
There is a best answer for each boat owner, hopefully people will knowledgeably choose what's best for them. I have learned loads from this forum and now know what is best for my purposes. If I did 1000 miles a year I would even consider IPS.
It's like buying a saloon car or a big 4x4 - what do you want to do
Greg2
Well-Known Member
My comment is very much ‘tongue in cheek’ but on a serious note I agree.
Current boat has outdrives but that is what they have in our current choice of boat/size so decision made. Had shafts on two previous larger boats and they were the right choice then. So very well acquainted with the pros and cons of each and probably prefer shafts overall but outdrives have their benefits. Ultimately would probably prefer a single engined shaft drive boat but time will tell
oldgit
Well-Known Member
Red diesel going, going, going, gone! How’s the fuel consumption versus maintenance costs equation looking now?
suspect probably exactly the same as the all the other countries using white ?
volvopaul
Well-Known Member
I’ve always had shaft drive boats as they were all either aft cabin or flybridge.
My next boat won’t be either of the above , there are many boats that tick the boxes that are outdrive powered , I guess doing the repairs and servicing every day takes the bad taste out of owning one , there is of course bound to be some weekend shattered at some point in the future when it happens , Princess V series are such good boats , a shaft drive sport boat like that Targa 47 was my goal 3 years ago , it didn’t happen and now we don’t need the space .
Shaft V drives will always be a topic and always a debate .
Momac
Well-Known Member
On the subject I have nothing to report. Its down to the owner who is pondering over the next steps.
volvopaul
Well-Known Member
Has he diagnosed the failure ?
Momac
Well-Known Member
Not as far as I know. I hope for an update next weekend.
Momac
Well-Known Member
Drive plates shattered.
Delicate things these shaft drive transmissions.?
Delicate things these shaft drive transmissions.?
Momac
Well-Known Member
I understand it's only a few hours labour and the parts are on order .
kashurst
Well-Known Member
At least the part will be fairly cheap and it won’t need a lift out etc. Fingers crossed for a good result
Momac
Well-Known Member
A precautionary lift has been suggested to check there is nothing caught on the prop. But this does seem very unlikely.
kashurst
Well-Known Member
If the drive just went whilst cruising, I would fix the problem and then test it out. If there is vibration after - then yes the boat has hit something. However a drive plate on an engine that size is often just a flat but thin piece of steel with a big hole in the centre, filled with a rubbery stuff. Its rubber they don't last forever.
volvopaul
Well-Known Member
The 43 has a clutch plate type coupling with shock springs in the middle .
benjenbav
Well-Known Member
Interesting reading this thread as I had a transmission go bang on a classic Porsche 911 (tiptronic) as I pulled away from lights at a junction off the M5 yesterday. I think it’s the u/j or main input shaft as engine runs normally and all gears can be selected: just not talking to each other. Home on a truck yesterday and up on a ramp tomorrow for work under warranty.