Re-engined Fairline Carrera 24

D

Dazzajohm

N/A
Joined
30 Jul 2016
Messages
418
Location
Dover
Visit site
I'm after some advice please.

Have been looking at a Fairline Carrera 24 which has been re engined with Volvo TMAD 22 twin diesels.

The boats on hard standing at the moment so haven't had chance for a sea trial but I've received conflicting information about the engines.

The broker tells me the boat will easily do 20kts but an outdrive mechanic I know tells me that the boat is underpowered with those engines and it will struggle to reach plane of around 17kts without full throttle all the time.

Anyone have any insight they can provide to help me?

Thanks in advance.
 
The engine, by Volvo known as 'TMD22P-C (AQ)' is a 4-cyl 2-litre turbo charged diesel producing 78 hp (on the flywheel - nowadays hp is given on the prop shaft which is lower due to the power lost in transmission). The product bulletin from 2003 states that the full speed rpm need to be 3500-4500.

Weight each is about 260 kg so 520 kg in total.

A test with single AQ271 (275 hp - 405 kg) saw a max of 30 knots so with approx. half that and 115 kg more I agree with it being underpowered if the aim is to having it performing as designed to. Even more so if weight is no longer as when new (added gear, crew et al).

You will need to test it to find out.

Edit: Saw somewhere that the tmd22 is the turbo version of the 59 hp base engine fitted to maestro, montego and daf leyland ...
 
Last edited:
Yes, they are 105hp each.

The current owner says he knows the boat will cruise comfortably at 20kts and go up to 30kts which I'm just not sure I believe but someone else tells me with those engines will be lucky to achieve 15kts.

The broker is being a pain and as the boat is on the hard standing has said that I need to make and agree an offer subject to sea trials and everything working before they put it in the water. But I would just like as much info as possible and as much idea as possible before I go down that route.

Thanks everyone for your comments.
 
Not sure what's happening but I've tried to reply 3 times today and it's not shown up here...

Yes, they are the 105hp version.

Thanks for all the comments
 
If you do not believe the seller and the broker is a pain I'd leave it.

No reason to insist on a bad experience with so many nice boats for sale.
 
If you are really that keen on this particular boat why not have a sea trial and then you will know for sure? Yes it will cost some money to get it into the water etc. but a sea trial is going to happen anyway before you buy it so why not do it?

Otherwise take Spi D's advice and keep looking around..
 
Dazzajohm said:
Have been looking at a Fairline Carrera 24 which has been re engined with Volvo TMAD 22 twin diesels.

The boats on hard standing at the moment so haven't had chance for a sea trial but I've received conflicting information about the engines.

The broker tells me the boat will easily do 20kts but an outdrive mechanic I know tells me that the boat is underpowered with those engines and it will struggle to reach plane of around 17kts without full throttle all the time.
Click to expand...

The broker is correct and your mechanic is wrong. In October 1997 there was a feature in Motor Boats Monthly about a re-power of a Fairline Carrera 24 with twin Volvo Penta TAMD 22 engines (replacing Volvo Penta AQ171 petrols). It could even be the boat you're looking at - there can't have been many (at the time it had yellow and blue stripes and was called 'Phoenix').

With the petrol engines the boat was achieving 33 knots, after the re-power the boat achieved 25 knots. Acceleration improved, and the owner regularly pulled water skiers with the boat.

They also reckon the average fuel burn dropped to 4.5gph (20 litres) from the 12 gph they were getting with the petrol engines.

Even if it's dropped a knot or two with age it should still be getting more than 20 knots.

For what it's worth, I have an identical engine in my boat (single engine - smaller 21ft boat) that is a similar age (assuming the re-power of the one you're looking at was of this era - likely, as VP were pushing re-powers with this engine at the time), and it's comfortably still getting the revs and speed it was when new - I get 26 knots at 4,500rpm and cruise at 20 knots and 4,000rpm. Overall, I average about 7 litres an hour so the figure quoted for consumption doesn't sound unreasonable (but it's worth noting that figure is overall, not just at planing speeds).

The request for an offer to be agreed and deposit placed subject to sea trial and survey is also quite normal for a broker.

If you'd like a copy of the feature detailing the entire conversion, you can buy it here: http://marinedirectory.ybw.com/reprints/results1.jsp

Make sure the Motor Boats Monthly box is ticked, select 'All catagories' and search for 'Carrera'. It should come up.
 
Last edited:
If it's not that boat, then speed will very much depend on props.
The original outdrives may well have been geared for petrols (2.15:1) rather than for diesels (1.78:1)
this means that the increased torque of the diesels is not utilised.
When I re-engined from petrol to diesel the props had to change from 17" short hub to 21" long hub+2" of extra pitch+1" of cupping to get a suitable load on the engines and decent speed.
Small er props just meant that the engines revved to their stop but without moving sufficient water to get speed.
 
tico said:
If it's not that boat, then speed will very much depend on props.
The original outdrives may well have been geared for petrols (2.15:1) rather than for diesels (1.78:1)
this means that the increased torque of the diesels is not utilised.
When I re-engined from petrol to diesel the props had to change from 17" short hub to 21" long hub+2" of extra pitch+1" of cupping to get a suitable load on the engines and decent speed.
Small er props just meant that the engines revved to their stop but without moving sufficient water to get speed.
Click to expand...

The gearing change is likely due to the usable rev range of the engine.. The petrol engines can rev up to 5500-6000 rpm while the diesels probably max out at about 4000-4500.. Even if both engines produced the same power they make the power at very different RPM..
 
Hi there, have just seen this reply now Nick Burnham, however what is the weight of your boat. This Carrera is 3.5 tonne. And you are right. I've seen the article and the boat in mention is the exact boat in question. Thanks for your help.
 
I have never understood all this pay a deposit and we will think about putting it on the water if you pay for it rubbish. They are trying to sell it. Others will reply it's just how it is but it doesn't make it right !
 
No it is a little frustrating. Also I was told that if I put it in the water it's at my expense and I can only get my deposit returned if I have a qualified independent third party inspect the boat and they find a problem.
 
Dazzajohm said:
No it is a little frustrating. Also I was told that if I put it in the water it's at my expense and I can only get my deposit returned if I have a qualified independent third party inspect the boat and they find a problem.
Click to expand...
Your broker is being a little naughty. What does he describe as "qualified?" Have a look on the RYA website about buying a used boat, and use this as your guide. Take a copy to the broker if he is unreasonable over the phone. Nick Burnham used to be s broker I believe, so if he gives you advice, then take it! If you feel you are not competent in inspecting e boat, then take a surveyor with you, but most of them will focus on the hull, not the machinery, that is for a good mechanic.
 
Have just taken your advice and looked at the info provided by the RYA and it says "buyers should be aware that they are responsible for the costs associated with sea-trial and lift in / out for survey"... So it looks like what I've been told is common practice :-/
 
there is nothing stopping you making sea trial performance an explicit condition of sale.

Deposit subject to successful seatrail, then the detail what 'successful' means. i.e boat must acheive in excess of 20knts
 
jrudge said:
I have never understood all this pay a deposit and we will think about putting it on the water if you pay for it rubbish. They are trying to sell it. Others will reply it's just how it is but it doesn't make it right !
Click to expand...

i suppose by the time the 10th tyre kicker has had you pay for a lift, launch and seatrial fuel and then walked away saying 'nah, dont really like it after all' you might find some sympathy for the position
 
You must log in or register to reply here.

Share this page

Top