Gen out, Engines out?

[jrudge]

My former s65 has generator issues.

In the end it was fixed in situ but replacement was discussed. The factory suggested way was to dismantle the old , take it out, dismantle the new and put it in.

The degree of each will be limited of course by access.

If just the case find a way to replace in situ, and if not get a new base fabricated ( 2 halves?) that will go in ok. Removal of all will be time and hassle I suspect you will regret

 

[MapisM]

I will never complain again about the e/r accessibility of my DP, after reading this thread.
Everything is relative of course, and I was certainly spoilt by my old lady, whose e/r was fantastic for the boat size.
But I'm surprised to read of so many boats - also as big as a Sq65 - where pulling out the genset is such a nightmare, to the point of requiring the dismantle of the thing.
In my boat, the whole cockpit floor is actually a hinged hatch, that can be opened to pull out the engines right underneath.
This is of course made easier by the fact that she's on V-drives, hence with engines much more astern that with straight shaft.
Otoh, the genset is at the forward end of the e/r, right under the saloon.
But a section of the wooden floor is made by an almost invisible panel, right above the genset, that can be lifted to pull it out.
Which literally takes seconds, not minutes - to the point that when doing some maintenance in the e/r, we open it just to let the air flow better inside... :encouragement:

 

[Deleted User YDKXO]

This is of course made easier by the fact that she's on V-drives, hence with engines much more astern that with straight shaft.

One of the many advantages of V drives. All the major components are under the cockpit and if the builder has the foresight, like Ferretti, to build the cockpit deck as one big removal panel, then every major component in the engine bay, including the engines and generator, can easily be removed

Yes it is poor design that a generator cannot be removed in a 65 footer without dismantling it

 

[Portofino]

Ours has two 1/2 s over each engine .Some cockpit furniture will need to be removed bolted from underneath and easy to access the fixings before lifting the lids .
The geny is under that hatch partly concealed , sleeping dogs guarding it and it fits through dimensionally side on fwiw ?

 

[MapisM]

Poor dog, on the leash even while asleep?!

 

[MapisM]

One of the many advantages of V drives.

Yup. Never been a fan I must admit, but there's a lot to be said in favour of them, particularly in P boats.
The only thing which I still dislike with a passion is the shaft seal under the engine, but that's more a pet peeve of mine than a real problem.

 

[Portofino]

Poor dog, on the leash even while asleep?!

Cockpit steps hazard .Toy dogs have low survival rates with broken legs , so you gotta watch out .
He does get some freedom

 

[Deleted User YDKXO]

Yup. Never been a fan I must admit, but there's a lot to be said in favour of them, particularly in P boats.
The only thing which I still dislike with a passion is the shaft seal under the engine, but that's more a pet peeve of mine than a real problem.

Yes it can be an issue but on my boat the shaft seal is underneath the shaft between engine and gearbox so quite accessible

 

[MapisM]

Yup, coming to think of it, now I remember.
I believe that's allowed by your V-drive gearboxes (ZF550, possibly?), whose prop shaft connection is right under the engine jackshaft.
AOTBE, this allows the prop shafts to pass through the hull more forward, compared to a system with separate gearbox+BPM V-drive like mine (and which Ferretti also used in several models), where the shaft prop flange is right beside the engine jackshaft, at the same height.
This latter layout has the advantage of allowing a prop shafts placement closer to the keel, but with less accessibility to shafts seals.
Compromises, as always...

 

[markc]

In my boat, the whole cockpit floor is actually a hinged hatch, that can be opened to pull out the engines right underneath.

I quite fancy hinging my cockpit floor.. a good winter project. I might grab some tips off you sometime!

 

[Deleted User YDKXO]

Yup, coming to think of it, now I remember.
I believe that's allowed by your V-drive gearboxes (ZF550, possibly?), whose prop shaft connection is right under the engine jackshaft.
AOTBE, this allows the prop shafts to pass through the hull more forward, compared to a system with separate gearbox+BPM V-drive like mine (and which Ferretti also used in several models),.

Spot on P

This is the V drive arrangement on my current F630 with ZF gearbox

And here is the V drive arrangement on my old F46 with BPM gearbox

I assume that ZF's gearbox with one shaft above the other is specifically designed to allow the prop shaft to exit the hull more forward and to reduce the prop shaft angle

 

[MapisM]

And here is the V drive arrangement on my old F46 with BPM gearbox

Yup, that's similar to what I've got in the DP.

Btw (not that this matters, but just for the records), the green box in the left bottom corner of your second pic is indeed a BPM V-drive, but very different from what you've got now in the F630, because the BPM unit is a pure V-drive, always on, and with no gearbox functionalities.
In this setup, the gearbox (for engaging/disengaging and reversing) is attached to the engine, and it's the yellow box to which the jackshaft is connected.
I don't know the type/brand, but I don't think it was supplied by BPM, anyhow. Fwiw, that's where I've got a ZF350 gearbox.

Otoh, the white box on the right side of the first pic is a single unit gearbox+V drive, which incorporates a 10 degrees down-angle offset.
Probably a ZF550-V, I would dare guessing.
Do you possibly remember that? Just curious...

 

[Deleted User YDKXO]

Btw (not that this matters, but just for the records), the green box in the left bottom corner of your second pic is indeed a BPM V-drive, but very different from what you've got now in the F630, because the BPM unit is a pure V-drive, always on, and with no gearbox functionalities.
In this setup, the gearbox (for engaging/disengaging and reversing) is attached to the engine, and it's the yellow box to which the jackshaft is connected.
I don't know the type/brand, but I don't think it was supplied by BPM, anyhow. Fwiw, that's where I've got a ZF350 gearbox.

Yes youre right. The BPM V drive is not a gearbox as such, it just reverses the drive whereas the ZF is a gearbox + reverses the drive

Probably a ZF550-V, I would dare guessing.
Do you possibly remember that? Just curious...

Not quite right. The model is a ZF665V

 

[MapisM]

Not quite right. The model is a ZF665V

Well, my guess wasn't too far off, anyway.
I don't remember to have heard before of the 665, but based on a quick specs comparison it looks like it's a beefed up 550, rated for higher power...
550V vs. 665V
Solid stuff, anyway - made in IT, afaik! :encouragement:

 

[Deleted User YDKXO]

Well, my guess wasn't too far off, anyway.
I don't remember to have heard before of the 665, but based on a quick specs comparison it looks like it's a beefed up 550, rated for higher power...
550V vs. 665V
Solid stuff, anyway - made in IT, afaik! :encouragement:

I didnt know the ZF boxes were made in Italy. I better start offering up prayers for the continuing reliability of my ZF boxes then

 

[MapisM]

Yup, near Padova.
I don't think you have reasons to be worried, though.
If those folks in Friedrichshafen HQs trust them, we also can, I reckon. :encouragement:

 

[Deleted User YDKXO]

Yup, near Padova.
I don't think you have reasons to be worried, though.
If those folks in Friedrichshafen HQs trust them, we also can, I reckon. :encouragement:

Padova thats OK. I feared it might have been made down south in the African part of Italy!

 

[MapisM]

LOL, do you mean like those Itama thingies, for instance...?

 

[Deleted User YDKXO]

LOL, do you mean like those Itama thingies, for instance...?

Have I said the wrong thing now?

 

[MapisM]

In fairness, Rome still ain't so African, after all.
And their nautical heritage is remarkable, including Canados, among other reputable builders.
Aicon, on the other hand..... :ambivalence: