Renovating an old wooden sports boat, am I mad?

[smileymikey]

BigTom85 said:

smileymikey said:

Saw this and thought of you

http://www.carandclassic.co.uk/car/C570319

£5-7k for an engine with no internals?

Really?

I like the sentiment though...

Any more ideas on the engine front?

Why not....the boat has'nt got any externals at the minute lol

[MOTORVATOR]

BigTom85 said:

smileymikey said:

Saw this and thought of you

http://www.carandclassic.co.uk/car/C570319

£5-7k for an engine with no internals?

Really?

I like the sentiment though...

Any more ideas on the engine front?

A new one of those, if you could get one, would be north of £100k now. 900ish hp delivered at continuous full throttle rpms for hours not minutes.

Having said that you won't pick up a set of internals for it either unless you happen across a forgotten about stockpile of spares.

[BigTom85]

MOTORVATOR said:

A new one of those, if you could get one, would be north of £100k now. 900ish hp delivered at continuous full throttle rpms for hours not minutes.

Having said that you won't pick up a set of internals for it either unless you happen across a forgotten about stockpile of spares.

Indeed. Its a talking piece, an expensive coffee table, nothing more.

[Bonefish Blues]

MOTORVATOR said:

A new one of those, if you could get one, would be north of £100k now. 900ish hp delivered at continuous full throttle rpms for hours not minutes.

Having said that you won't pick up a set of internals for it either unless you happen across a forgotten about stockpile of spares.

Out of interest, how does one marinise (?) an engine like that?

[RichB]

Bonefish Blues said:

Out of interest, how does one marinise (?) an engine like that?

With a marinade?

[Simpo Two]

MOTORVATOR said:

Having said that you won't pick up a set of internals for it either unless you happen across a forgotten about stockpile of spares.

Oh I dunno - anything an Italian can make on a lathe I'm sure a Brit can make on a lathe... There must be a bloke in a shed somewhere... Spirit of Burt Munro...?

[Fishtigua]

When we had the UIM Class One Powerboat Championships in Guernsey in the '80s, there used to be Lambo V12s just laying around the pits. New ones were vac-packed on pallets and broken ones just shoved to one side.

Jeez, if only I had a Hiab in those days, I could have been sitting pretty today.

https://www.youtube.com/watch?v=aKtVKAk3SYo

[hidetheelephants]

Simpo Two said:

MOTORVATOR said:

Having said that you won't pick up a set of internals for it either unless you happen across a forgotten about stockpile of spares.

Oh I dunno - anything an Italian can make on a lathe I'm sure a Brit can make on a lathe... There must be a bloke in a shed somewhere... Spirit of Burt Munro...?

Crosthwaite and Gardner can do it for an Auto Union so it's clearly possible, but the bill might be eyewatering; if off-the-shelf items from other makers can be used or adapted, pistons the right bore etc, perhaps money may be saved.

[MOTORVATOR]

Bonefish Blues said:

MOTORVATOR said:

A new one of those, if you could get one, would be north of £100k now. 900ish hp delivered at continuous full throttle rpms for hours not minutes.

Having said that you won't pick up a set of internals for it either unless you happen across a forgotten about stockpile of spares.

Out of interest, how does one marinise (?) an engine like that?

One doesn't, it was a marine engine from the outset.

Designed to be able to run either direction to counter torque and save the gearing.

[Bonefish Blues]

MOTORVATOR said:

Bonefish Blues said:

MOTORVATOR said:

A new one of those, if you could get one, would be north of £100k now. 900ish hp delivered at continuous full throttle rpms for hours not minutes.

Having said that you won't pick up a set of internals for it either unless you happen across a forgotten about stockpile of spares.

Out of interest, how does one marinise (?) an engine like that?

One doesn't, it was a marine engine from the outset.

Designed to be able to run either direction to counter torque and save the gearing.

Ah! Can I have a supplementary? How so many horses in that form (well, with its interals!) when compared to its road cousins?

[MOTORVATOR]

Bonefish Blues said:

Ah! Can I have a supplementary? How so many horses in that form (well, with its interals!) when compared to its road cousins?

8.2 litre and claimed at 930hp by the time they finished.

The difference with a road cousin as I said above is that they would be expected to run at full duty for in excess of an hour. On the longer haul races like Cowes - Torquay considerably longer.

[tr7v8]

MOTORVATOR said:

Bonefish Blues said:

Ah! Can I have a supplementary? How so many horses in that form (well, with its interals!) when compared to its road cousins?

8.2 litre and claimed at 930hp by the time they finished.

The difference with a road cousin as I said above is that they would be expected to run at full duty for in excess of an hour. On the longer haul races like Cowes - Torquay considerably longer.

A marine engine does have the advantage of unlimited cooling water though!

[rolando]

How about

Storer said:

One of the engines freshly painted. This one will be for sale soon.


Paul

http://www.pistonheads.com/gassing/topic.asp?h=0&a...

No connection with vendor

Edited by rolando on Monday 19th January 14:10

[maser_spyder]

Engine is already decided! Modern crate engine with all new parts, quick and easy to fit with little else to do other than bolt it in place and wire it up. Exotic stuff is all very well, but the damned thing will never see the water if i start getting involved in marinising another engine, temping though it is. If anything, I'd try a 4.2 Maserati engine from a QP...

[MOTORVATOR]

Spot on Maser, we were only killing the time while you got the sheathing on.

All done?

[maser_spyder]

MOTORVATOR said:

Spot on Maser, we were only killing the time while you got the sheathing on.

All done?

Bloody fairing. 😰

[Brite spark]

Can't remember if it was this thread or another one, it was some time ago, I think up you may have been after someway of drilling the prop shaft with a long drill bit of some sort and might have been after something like this...

http://www.starrett.co.uk/shop/hs_accessories/300m...

[Mashedpotatoes]

Brite spark said:

Can't remember if it was this thread or another one, it was some time ago, I think up you may have been after someway of drilling the prop shaft with a long drill bit of some sort and might have been after something like this...

http://www.starrett.co.uk/shop/hs_accessories/300m...

Nice thought but I wouldent be happy if the drill bit ended up jammed in. Plus the drill bit holder is a larger diameter than the drill bit it self.
Not sure that's the best option Brite spark

[maser_spyder]

I'd spotted a similar thing on screwfix, but the problem is the hole needs to be perfectly in line with the shaft log and P bracket (that's to say, the inside prop shaft support as well as the outside prop shaft support). A couple of mm on the wrong angle and it won't fit properly and will cause all sorts of issues fitting the brackets.

The only way to get it perfect is to use an actual shaft, through the actual P bracket, with some sort of hole cutter on the end. Technically, doing it this way, it can't go wrong.

When I get to this stage, I guess I'll have to find a length of rod the same diameter as the shaft, have a thread put on the end, and fit a hole cutter directly to the end of it. Drill one end, hole cutter the other, line up and go.

The problem with using two or three lengths of extensions is you'll get a lot of wobble down the length and it'll inevitably go off-centre, buggering up the hole angle.

Basically, it's a right old pisser of a job just to put a simple hole through the hull.

Anyway, there's no hull yet so haven't got to worry about it!

[paintman]

Couple of ideas from the net:
Using bushes in the strut: http://www.chris-craft.org/discussion/viewtopic.ph...
Drilling through 3' of wood: http://www.boatdesign.net/forums/sailboats/boring-...
Cutting teeth on the end of a long piece of steel pipe: http://forum.woodenboat.com/showthread.php?3083-ho...

And a youtube one: https://www.youtube.com/watch?v=4ciYFBjOHzo

Edited by paintman on Thursday 22 January 18:34